
December 2006 
1A adjustable power supply module 
Features: 
þ Just add a suitable transformer (see table)  
þ Great to power your projects and save on 
batteries 
þ Use as adjustable power supply for 
experiments 
þ Control DC motors, low voltage light bulbs, …  
þ Your own unique application 
Specifications: 
• Min output voltage: 1.2V 
• Max output current: 1A 
• Max output voltage: 30VDC 
• Very low ripple (80 dB rejection) 
• Short circuit, thermal and overload protection 
• Max input voltage: 24VAC or 35VDC 
• Max dissipation: 15W (with heat sink) 
• Dimensions: 52x30x35mm 
VM124 
Regulated DC output 
Output adjust 
Required DC 
Transformer rating 
output voltage 
3..6VDC  9VAC 
6..9VDC  12VAC 
9..12VDC  15VAC 
12..15VDC  18VAC 
Add a 
suitable 
heat sink 
5-24VAC 
5-35VDC 
INPUT 
Example our C 
series 
transformers 
(230Vac in) 
9Vac: 109010C 
12Vac: 112012C 
24Vac: 212024C 
15..21VDC  24VAC