- on Power Supplies
- Published in issue 1/2013 on page 84
Simple On-bike Power Supply
5 V from muscle power
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CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.
R1 = 1kOhm
C1 = 1000µF 35V, 5mm pitch, 10 mm diam.
C2 = 100µF 35V, 2.5mm pitch, 6 mm diam.
C3 = 10µF 16V, 2.5mm pitch, 5mm diam.
D1 = 24V 1W zener diode
D2–D5 = 1N5817 or SB140*
IC1 = BA05CC0T (LDO, 1A, TO220 case)*
LED1 = LED, green, 5mm
K1,K2,K3 = 2-way PCB screw terminal block, 5mm pitch
S1 = switch, DPDT, 24V 1A
PCB # 120600-1
Suitable plastic housing and connection clamps
* see text