Global Specialties 1310 User Manual

DC Power Supply

1310

Instruction Manual

1310

DC POWER SUPPLY

Operation Manual

M-00367 EDITION : 1 ( JAN., 2012 )

80-01-0538
S/90

GLOBAL SPECIALTIES

22820 Savi Ranch Parkway
Yorba Linda, CA 92887

TEL.: [phone]
FAX.: [phone]

TABLE OF CONTENTS

SECTION DESCRIPTION PAGE NO.

1 INTRODUCTION 1

2 SPECIFICATIONS 2

3 OPERATING INSTRUCTIONS 4

4 CIRCUIT DESCRIPTION 11

5 SERVICE & 13

WARRANTY INFORMATION

6 MAINTENANCE & CALIBRATION 15

7 PART LIST & SCHEMATICS 19





ABOUT GLOBAL SP E C I A LTIES

Thank-you for selecting a GLOBAL SPECIALTIES product. You won’t
be disappointed ! Because we’ve never strayed from our original
founders’ simple ideal, lower the high cost of electronic design and
testing. Over the years, we’ve offered you electronic testing and
prottyping equipment that was engineered for the processinal, but
economically priced. The “best for less”, never compromising quality
in order to give you, our customer, a real value.

We accomplish our goal by cutting the industry giants down to size.
Most test equipment comes with excess features that you don’t want,
but have to pay for anyway. We eliminate these high cost features,
lower the price, but not the performance. The result is smarter tools for
the value minded user.

We pioneered the breadboarding industry allowing you to create circuits
as fast as you can think. Our breadboards are constructed to last. We
use high impact plastic and nickel silver contacts, plus “Made in U.S.A.”
quality and an unconditional lifetime guarantee. Our logic probes offer
speeds and storage capabilities only equaled by the fastest
oscilloscopes. When it comes to frequency counters we offer you far
more performance for far less money. Handheld or benchtop, frequency
counters or universal counter-timers, whatever you application you
can count on us. Our complete family of bench-top instruments offers
you features and performance unequaled, dollar for dollar.

In our continual strive for the “best for less” we never lose sight of the
future. We are always searching for ways to improve our existing
products and design new products using the latest technology. We do
this by asking you, our customers, what your needs are, and what your
likes and dislikes are. Feel free to contact us by phone, mail or fax with
your comments. Tell us how we can put Global to work for you.



PCB Components 1310-PS-MAIN PCB

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Ref Designator Value

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DIODES

D5 1N751 ( 5.1V )
D17 1N4148
D18 1N4148
D25 1N4148
D26 1N4148
D1 1N4007
D2 1N4007
D3 1N4007
D4 1N4007
D10 1N4007
D11 1N4007
D13 1N4007
D14 1N4007
D15 1N4007
D16 1N4007
D19 1N4007
D20 1N4007
D21 1N4007
D22 1N4007
D23 1N4007
D24 1N4007
D27 1N4007
D28 1N4007
D6 1N5408
D7 1N5408
D8 1N5408
D9 1N5408

In closing, we at GLOBAL SPECIALTIES would like to express our
appreciation to our many loyal customers. We pledge to not rest on
our laurels nor will we forget our main objective, to supply the “best for
less”.

PCB Components 1310 DISPLAY PC B

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Ref Designator Value

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FNDs

FND1 RED FND COMM. ANNODE.
FND2 RED FND COMM. ANNODE.
FND3 RED FND COMM. ANNODE.

21

PCB Components 1310-PS-MAIN PCB

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Ref Designator Value

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CAPACITORS

C1 22µF, 50V, ELE
C2 22µF, 50V, ELE
C3 1000µF, 35V, ELE
C4 0.1µF, 100V, MP
C5 22µF, 16V, ELE
C6 0.1µF, 100V, MP
C7 22µF, 16V, ELE
C8 0.1µF, 100V, MP
C9 4700µF, 16V, ELE
C10 0.1µF, 100V, MP
C11 22µF, 16V, ELE
C12 22µF, 16V, ELE
C13 0.1µF, 100V, MP
C14 2200µF, 35V, ELE
C15 0.1µF, 100V, MP
C16 22µF, 16V, ELE
C17 22µF, 50V, ELE
C18 0.1µF, 100V, MP
C19 2200µF, 35V, ELE
C20 0.1µF, 100V, MP
C21 0.1µF, 100V, MP
C22 22µF, 50V, ELE
C23 0.1µF, 100V, MP
C24 0.22µF, 100V, MP
C25 0.47µF, 100V, MP
C26 0.1µF, 100V, MP
C27 0.1µF, 100V, MP
C28 100pF, 500V, CD
C29 0.1µF, 100V, MP
C30 0.022µF, 400V, VDC, MP AX

SECTION - 1

INTRODUCTION

POWER SUPPLY : MODEL1310

The 1310 Power Supply is a versatile triple-output unit which can
be used in both digital and analog circuit applications. It consists
of three independent power supplies: a foxed 5 volt supply rated at

1.0 amps maximum, and two variable 1.3 to 20 volt supplies each
rated at 250 milliamps maximum. The three digit display allows the
voltage of the variable supplies to be quickly and accurately set, and
current flow can be monitored with 1 milliamp resolution.

All three supplies are completely isolated from each other, and from
earth ground. A circuit or piece of equipment connected to any one
of the supplies may be floated to DC level different from the other
two supplies. In addition, any two - or all three - supplies may be
connected to the chassis and earth ground is provided. And, of
course, each supply is protected against short circuit and thermal
overloads.

The 1310 is an excellent general purpose power supply for
engineering lab applications, bread-boarding, and prototyping.
The triple-output voltages make it ideal for working with all
disciplines, from microcomputer components to op-amps. Priced
economically, the 1310 is the perfect choice for production lines,
service shops, hobbyists, and whenever a compact, reliable DC
power supply is needed.

TRANSISTORS

Q1 2N3906
Q2 2N3904
Q3 2N3904

ICs

U1 LM317
U2 LM354
U3 LM317
U4 78S05
U5 7107

120

SECTION - 2

SPECIFICATIONS

POWER REQUIREMENTS : 108 to 132V AC, 50 to 60Hz ( 215 to

250VAC, 50 to 60Hz model available )

OUTPUTS ( All floating via Transformer Isolation ) :

5V Power Supply :

Voltage : 5V DC ( ±0.2V ) fixed.

Current : 1.0A Maximum.

Regulation :

Line : 0.2%.

Load : 1.0%.

Ripple : 0.1% 5mV Maximum

A Power Supply :

Voltage : 1.3 to 20V DC (continuously variable)

Current : 250mA Maximum.

Regulation :

Line : 0.1%.

Load : 0.2%.

Ripple : 10mV Maximum.

B Power Supply :

Voltage : 1.3 to 20V DC (continuously variable)

Current : 250mA Maximum.

Regulation :

Line : 0.1%.

Load : 0.2%.

Ripple : 10mV Maximum.

CONTROLS : Power ON/OFF, variable voltage adjust

(A), variable voltage adjust (B), meter
select Volts, Amps, meter selectA/B.

2

SECTION - 7

PART LIST & SCHEMATICS

PCB Components 1310-PS-MAIN PCB

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Ref Designator Value

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RESISTORS

R1 1K, ¼W, 1%, MFR
R2 1E, ½W, 1%, MFR
R3 1E, ½W, 1%, MFR
R4 1K, ¼W, 1%, MFR
R5 1K, ¼W, 1%, MFR
R6 100E, ½W, 1%, MFR
R7 300E, ¼W, 1%, MFR
R8 1K, ¼W, 1%, MFR
R9 1E, ½W, 1%, MFR
R9a 1E, ½W, 1%, MFR
R11 150E, ¼W, 1%, MFR
R13 82K, ¼W, 1%, MFR
R14 1K, ¼W, 1%, MFR
R16 82E, ¼W, 1%, MFR
R18 270K, ¼W, 1%, MFR
R19 220E, ¼W, 1%, MFR
R21 1K, ¼W, 1%, MFR
R22 1E, ½W, 1%, MFR
R22a 1E, ½W, 1%, MFR
R23 82E, ¼W, 1%, MFR
R24 220E, ¼W, 1%, MFR
R26 1K, ¼W, 1%, MFR
R27 82K, ¼W, 1%, MFR
R31 270K, ¼W, 1%, MFR
R32 220E, ¼W, 1%, MFR
R34 1K, ¼W, 1%, MFR
R56 47K, ¼W, 1%, MFR
R57 100K, ¼W, 1%, MFR
R59 22K, ¼W, 1%, MFR
R60 100K, ¼W, 1%, MFR
R61 1K, ¼W, 1%, MFR
R62 1K, ¼W, 1%, MFR

PRESETS

R12 100E ( H ) Preset Pot
R20 100E ( H ) Preset Pot
R25 100E ( H ) Preset Pot
R33 100E ( H ) Preset Pot
R58 1K ( H ) Preset Pot
R15 50K ( H ) Preset Pot
R28 50K ( H ) Preset Pot
VR1 1K Carbon Lin Pot Metal Shaft
VR2 1K Carbon Lin Pot Metal Shaft

19