ST AN2744 Application note

AN2744

Application note

ST7538Q power line FSK transceiver

dual channel reference design for AMR

Introduction

The ST7538Q dual channel reference design is a practical tool to start the activity of designing an automatic meter reading (AMR) node based on the ST7538Q power line FSK transceiver.

With this reference design, it is possible to evaluate the features of the ST7538Q and its transmitting and receiving performances in an actual communication on the power line network.

The ST7538Q reference design can be considered as composed of three main sections:

■ power supply section, specifically designed to coexist with power line communication and

to operate from a wide-range input mains voltage

■ modem and crystal oscillator section

■ dual channel line coupling interface section

The dual channel line coupling interface allows the ST7538Q FSK transceiver to transmit and receive on the mains using two different carrier frequencies: 72 kHz and 86 kHz, both within the frequency band A specified by the European CENELEC EN50065 standard for AMR applications.

Figure 1. ST7538Q dual channel reference design board with outline dimensions

56mm

98mm

As it can be seen from the picture above, a special effort has been made to develop a compact reference design board, oriented to practical applications.

Note: The information provided in this application note refers to the EVALST7538DUAL reference

design board.

April 2008 Rev 1 1/56

www.st.com

Contents AN2744

Contents

1 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 ST7538Q FSK power line transceiver description . . . . . . . . . . . . . . . . 10

4 Evaluation tools description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.1 Line coupling interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.1.1 Dual channel selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.1.2 Dual channel Tx passive filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.1.3 Dual channel Rx passive filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.1.4 Dual channel Rx active filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1.5 Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.2 Conducted disturbances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2.1 Conducted emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2.2 Noise immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3 Thermal design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.4 Oscillator section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.5 Surge and burst protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.6 50-pin connector for communication board . . . . . . . . . . . . . . . . . . . . . . . 40

5.7 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6 Performance and ping tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7 Application ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.1 Three-phase architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7.2 Received signal strength indication (RSSI) . . . . . . . . . . . . . . . . . . . . . . . 47

7.3 110-132.5 kHz dual channel coupling circuit . . . . . . . . . . . . . . . . . . . . . . 49

8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

9 List of normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2/56

AN2744 Contents

Appendix A Board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

3/56

List of figures AN2744

List of figures

Figure 1. ST7538Q dual channel reference design board with outline dimensions . . . . . . . . . . . . . . . 1

Figure 2. Typical curve for output current limit vs. RCL value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3. ST7538Q transceiver block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 4. Complete evaluation system including a PC, an EVALCOMMBOARD and the

EVALST7538DUAL board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 5. Power line modem demonstration kit with transmission session window . . . . . . . . . . . . . . 13

Figure 6. Scheme of the various sections of the board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 7. Modem and coupling interface schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 8. Power supply schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 9. Schematic of Rx and Tx filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 10. Measured frequency response of the Tx passive filter for 72 kHz channel (typical). . . . . . 22

Figure 11. Measured frequency response of the Tx passive filter for 86 kHz channel (typical). . . . . . 23

Figure 12. Simulated frequency response of the Tx passive filter for 72 kHz channel with tolerance

effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 13. Simulated frequency response of the Tx passive filter for 86 kHz channel with tolerance

effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 14. Measured frequency response of the Rx passive filter for 72 kHz channel (typical) . . . . . 25

Figure 15. Measured frequency response of the Rx passive filter for 86 kHz channel (typical) . . . . . 26

Figure 16. Simulated frequency response of the Rx passive filter for 72 kHz channel with tolerance

effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 17. Simulated frequency response of the Rx passive filter for 86 kHz channel with tolerance

effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 18. Measured frequency response of the Rx active filter for 72 kHz channel (typical) . . . . . . . 27

Figure 19. Measured frequency response of the Rx active filter for 86 kHz channel (typical) . . . . . . . 28

Figure 20. Simulated frequency response of the Rx active filter for 72 kHz channel with tolerance

effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 21. Simulated frequency response of the Rx active filter for 86 kHz channel with tolerance

effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 22. Measured input impedance magnitude of the coupling interface in Rx mode for the 72 kHz

channel (typical curve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 23. Measured input impedance magnitude of the coupling interface in Rx mode for the 86 kHz

channel (typical curve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 24. Measured input impedance magnitude of the coupling interface in Tx mode for the 72 kHz

channel (typical curve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 25. Measured input impedance magnitude of the coupling interface in Tx mode for the 86 kHz

channel (typical curve) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 26. Conducted disturbance test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 27. Output spectrum (typical) at 72 kHz channel, mains 220 VAC, fixed transmitted

tone = "1" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 28. Output spectrum (typical) at 86 kHz channel, mains 220 VAC, fixed transmitted

tone = "1" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 29. Narrowband conducted interference test setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 30. Measured BER vs. SNR curve (typical), white noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 31. Measured SNR vs. frequency curves (typical) at BER=10-3 - 72 kHz channel . . . . . . . . . 35

Figure 32. Measured SNR vs. frequency curves (typical) at BER=10-3 - 86 kHz channel . . . . . . . . . 35

Figure 33. PCB copper dissipating area for the ST7538Q dual channel reference design . . . . . . . . . 36

Figure 34. Packet-fragmented transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 35. Thermal impedance typical curve for the ST7538Q mounted on the reference design

board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 36. A recommended oscillator section layout for noise shielding . . . . . . . . . . . . . . . . . . . . . . . 38

4/56

AN2744 List of figures

Figure 37. Common mode disturbances protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 38. Differential mode disturbances protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 39. Scheme of the communication board connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figure 40. Typical waveforms at 230 VAC: open load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 41. Typical waveforms at 230 VAC: full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 42. Typical waveforms at 265 VAC: short-circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 43. Typical waveforms at 265 VAC: startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 44. Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 45. SMPS efficiency curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 46. Demonstration software window for the master board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 47. Scheme of principle for three-phase architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 48. Peak detector electrical schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 49. Measured DC_OUT vs. AC_IN peak detector performance . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 50. PCB layout - top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Figure 51. PCB layout - bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

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List of tables AN2744

List of tables

Table 1. Electrical characteristics of the ST7538Q dual channel reference design . . . . . . . . . . . . . . 7

Table 2. Output signal level setting through V

Table 3. Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 4. ST parts on the ST7538Q dual channel reference design board . . . . . . . . . . . . . . . . . . . . 19

Table 5. Line coupling transformer specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 6. Noise immunity test settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Table 7. 50-pin connector digital signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 8. 50-pin connector control signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 9. 50-pin connector power connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 10. SMPS specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 11. SMPS transformer specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table 12. List of components to be modified for the 110-132.5 kHz dual channel coupling. . . . . . . . 49

Table 13. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

partitioning - typical values . . . . . . . . . . . . . . . . 8

SENSE

6/56

AN2744 Electrical characteristics

1 Electrical characteristics

Table 1. Electrical characteristics of the ST7538Q dual channel reference design

Parameter Value Notes

Min. Typ. Max.

Operating condition

Ambient operating temperature

85 °C

Transceiver section

Selectable channel frequencies: 72 kHz (CH1), 86 kHz (CH2)

Transmitting specifications (Tx Mode)

Transmitting output voltage level

Transmitting output current limit

2 V

RMS

325 mA

RMS

2.25 V

RMS

Second harmonic distortion -55 dB

Third harmonic distortion -61 dB

50 Hz attenuation 100 dB

Receiving specifications (Rx Mode)

Minimum detectable Rx signal 53 dB/µV

RMS

Auxiliary supply

5 V linear regulator (VDC) output voltage

5 V linear regulator (VDC) current capability

-5% 5.05 V +5% ST7538Q internally generated

100 mA

If junction temperature exceeds 180 °C the device shuts down

R20 = 3.9 kΩ, R22=2.2 kΩ – see Ta bl e 2

R19 = 2 kΩ – see Figure 2

Loaded with CISPR 16-1 network

BER<10-3, negligible noise

Power supply section

AC mains voltage range 85 V 265 V

Mains frequency 50-60 Hz

Output voltage -10% 10 V +10% Green LED ON

Output voltage ripple 1%

= 600 mA, VIN=85 V

OUT

Output current 600 mA

Output power 5.6 W

Efficiency at P

Nominal transformer isolation

(1)

Number of holdup cycles

= 3.5 W 70%

OUT

4 kV

Primary to secondary/ secondary to auxiliary

7/56

Electrical characteristics AN2744

Table 1. Electrical characteristics of the ST7538Q dual channel reference design (continued)

Parameter Value Notes

Input power 100 mW

Switching frequency -10% 60 kHz +10% Transceiver section in Tx mode

1. ST does not guarantee transformer isolation. ST assumes no responsibility for the consequences that may result from that

risk.

Table 2. Output signal level setting through V

OUT

RMS

OUT

[dBuV

](R

RMS

+ R8) / R

partitioning - typical values

SENSE

R7 [kΩ]R

[kΩ]

1.000 120 1.25 0.910 2.2

1.125 121 1.4 1.3 2.2

1.250 122 1.6 2.2 2.2

1.500 124 2.0 2.7 2.2

1.800 125 2.25 3.3 2.2

2.000 126 2.5 3.9 2.2

2.250 (Note 1) 127 2.8 4.7 2.2

2.500 (Note 1) 128 3.15 6.8 2.2

3.000 (Note 1) 130 4.0 7.5 2.2

Note: 1 EN50065-1 normative compliance is not guaranteed with a signal level at mains output

greater than 2 V

Figure 2. Typical curve for output current limit vs. RCL value

400

RMS

8/56

350

300

250

Irms (mA)

200

150

100

1.75 2 2.25 2.5 2.75 3 3.25 3.5 3.75 4 4.25 4.5 4.75 5

Rcl (kOhm )

AN2744 Safety precautions

2 Safety precautions

The board must be used only by expert technicians. Due to the high voltage (220 V ac)

present on the parts which are not isolated, special care should be taken with regard to

people's safety.

There is no protection against high voltage accidental human contact.

After disconnection of the board from the mains, none of the live parts should be touched

immediately because of the energized capacitors.

It is mandatory to use a mains insulation transformer to perform any tests on the high

voltage sections (see circuit sections highlighted in Figure 7 and Figure 8) in which test

instruments like spectrum analyzers or oscilloscopes are used.

Do not connect any oscilloscope probes to high voltage sections in order to avoid damaging

instruments and demonstration tools.

Warning: ST assumes no responsibility for any consequences which

may result from the improper use of this tool.

9/56

ST7538Q FSK power line transceiver description AN2744

3 ST7538Q FSK power line transceiver description

The ST7538Q transceiver performs a half-duplex communication over the power line

network using frequency shift keying (FSK) modulation. It operates from a 7.5 to 12.5 V

single supply voltage (PAV

stage and two linear regulators providing 5 V (VDC) and 3.3 V (DV

Figure 3. ST7538Q transceiver block diagram

) and integrates a differential-output power line interface (PLI)

10/56

The ST7538Q can be programmed to communicate using eight different frequency

channels (60, 66, 72, 76, 82.05, 86, 110 and 132.5 kHz), four baud rates (600, 1200, 2400

and 4800 symbols per second) and two frequency deviations (1 and 0.5).

Many auxiliary functions are integrated. The transmission section includes automatic control

on PLI output voltage and current, programmable time-out function and thermal shutdown.

The reception section includes automatic input level control, carrier/preamble detection and

band-in-use signaling.

Additional features are included, such as watchdog timer, zero-crossing detector, internal

oscillator and a general purpose op-amp.

The serial interface (configurable as UART or SPI) allows interfacing to a host

microcontroller, intended to manage the communication protocol. A reset output (RSTO)

and a programmable 4-8-16 MHz clock (MCLK) can be provided to the microcontroller to

simplify the application.

Communication on the power line can be either synchronous or asynchronous with the data

clock (CLR/T) provided by the transceiver at the programmed baud rate.

When in transmission mode (i.e. RxTx line at low level), the ST7538Q transceiver samples

the data on the TxD line, generating an FSK modulated signal on the ATO pin. The same

AN2744 ST7538Q FSK power line transceiver description

signal is fed into the differential power amplifier to get four times the voltage swing and a

current capability up to 370 mA rms.

When in reception mode (i.e. RxTx line at high level), an incoming signal at the RAI line is

demodulated and converted to a digital bit stream on the RxD pin.

The internal control register, which contains the operating parameters of the ST7538Q

transceiver, can be programmed only using the SPI interface. The control register settings

include the header recognition and frame length count functions, which can be used to apply

byte and frame synchronization to the received messages.

11/56

Evaluation tools description AN2744

4 Evaluation tools description

The complete evaluation environment for the ST7538Q power line communication consists

of:

– 1 PC using the "ST7538 power line modem demonstration kit" software tool – 1 EVALCOMMBOARD hosting an ST7 microcontroller – 1 ST7538Q dual channel reference design board (EVALST7538DUAL)

The correct procedure for connecting the EVALST7538DUAL and the EVALCOMMBOARD

is as follows:

1. Connect the EVALST7538DUAL and the EVALCOMMBOARD together

2. Connect the ac cable to the EVALST7538DUAL and the USB cable to the EVALCOMMBOARD

3. Connect the EVALST7538DUAL to the mains supply

4. Connect the EVALCOMMBOARD to the PC via USB cable

Warning: Follow the connection procedure to avoid damaging the

boards!

Figure 4. Complete evaluation system including a PC, an EVALCOMMBOARD and the

EVALST7538DUAL board

USB/RS232USB/RS232

12/56

AN2744 Evaluation tools description

Figure 5. Power line modem demonstration kit with transmission session window

This complete communication node, controlled by the ST7538Q power line modem demonstration kit, implements real communication at bit level, simply sending or receiving a user-defined bit stream.

It is possible to establish a half-duplex communication between two of these communication nodes connected to each other. For better evaluating communication performances, the ST7538Q power line modem demo kit software tool has some particular features, including:

● Frame synchronization: a frame synchronization header can be added to the

transmitted data to set up a simple protocol, intended to test the capability of the system to correctly receive the exact bit sequence as it has been transmitted. This feature can be enabled in the Rx panel of the ST7538Q power line modem demonstration kit. A bit synchronization can be introduced as a simpler feature by enabling the preamble detection method in the control register panel and then inserting at least one "0101" or "1010" sequence at the beginning of the bit stream to be transmitted.

● Ping session: a master-slave communication with automatic statistics calculation can

be useful to test a point-to-point or a point-to-multipoint power line communication network, thus providing a method to evaluate reachability of each node in the network.

For further details about the ST7538Q power line modem demonstration kit tool, please refer to user manual UM0241 "ST7538 power line modem demonstration kit graphical user interface”.

13/56

Board description AN2744

5 Board description

The ST7538Q dual channel reference design is composed of the following sections:

– power supply section, based on ST’s VIPer12A-E IC – ST7538Q modem and crystal oscillator section – line coupling interface section, with three subsections:

– dual channel transmission passive filter

– dual channel reception passive filter

– dual channel reception active filter

The board has also two connectors, which allow the user to plug the mains supply on one side of the board and the IBU communication board on the other side.

Figure 6. Scheme of the various sections of the board

Dual Channel

RX Active Filter

Power Supply

(with ST Viper 12A)

Dual Channel

TX Passive

Mains Supply

Connection to

The schematics of the whole reference design are given in the following pages. Figure 7 shows the modem and coupling interface circuits, while Figure 8 represents the power supply circuit. In both schematics, high voltage regions are highlighted.

Filter

ST7538Q

Modem

Section

Dual Channel

RX Passive Filter

Connection to

C Board

14/56

Ta bl e 3 lists the components used to develop the reference design board. All parts have

been selected to give optimal performances.

The layout of the printed circuit is shown in Appendix A - Figure 50 and Figure 51.

AN2744 Board description

Figure 7. Modem and coupling interface schematic

15/56

Board description AN2744

Figure 8. Power supply schematic

16/56

HIGH

VO LTAGE

SECTION

AN2744 Board description

Table 3. Bill of materials

Item Q.ty Reference Value Description

ATOP1, ATOP2, P5 V, 10 V,

116

VADJ, TX, RXTX, RXFO, RX, RAI, GND, CLRT, CL, CD/PD,

Test point

BU, ATO

2 1 CN1 CON50A 50-pin female connector

3 1 CN2 Header 2 Mains supply connector

4 1 C1 470 pF 630 V EVOX-RIFA PFR5-471J630L4

5 1 C2 47 nF X2 Epcos B32921-A2473K

61 C3

470 µF 16 V

electrolytic

Rubycon YK / Yageo SE-K / Nichicon VK

7 1 C4 100 µF 16 V TDK CKG57DX7R-1C107M

82 C5,C10

10 µF 400 V

electrolytic

Yageo SE-K / Nichicon VK

9 1 C6 2.2 nF Y2 TDK CD12E2GA222MYNS

10 1 C8 47 nF

11 3 C9,C17,C21 10 µF TDK C3216X7R-1C106M

12 2 C11,C12 270 pF

13 5 C13,C15,C18,C19,C24 100 nF

14 2 C14,C26 10 nF

15 1 C16 4.7 nF

16 1 C20 10 nF

17 1 C22 18 pF

18 1 C23 47 pF

19 1 C25 100 pF

20 1 C27 56 nF 50 V

21 1 C28 100 nF X2 10% Epcos B32922-A2104K

22 1 C29 150 nF

23 1 C30 220 pF

24 1 D1 DF06S 600 V - 1.5 A bridge rectifier

25 1 D2 Green LED

26 1 D3 STPS1H100

27 1 D4 STTH1L06A

28 1 D5 BAS16 2L BAS21 also suitable

29 1 D6 SM6T6V8CA 6.8 V bidirectional Transil™ diode

30 1 D7 ESDA6V1L 6.1 V ESD Transil™ diode

31 1 D9 BZX84C8V2 8.2 V Zener diode

32 1 F1 FUSE 2 A time-lag (T)

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