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Basic electronics circuit schematic for full-wave bridge rectifier with diodes.
USB TTL 9V Stepdown Voltmeter Male Multi Module DIY Gadget
Build a dual adjustable power supply with used laptop chargers
Arduino-based Switching Voltage Regulators
Low-cost bare-bones bench power supply
Regulated Linear DC Power Supply
Step-down LED Driver (Up to 36V Input with Sleep Feature)
Portable Solar-Powered USB Charger/Cigar Box
Two circuits of switched mode power supply based on the 555 timer
Regulated power supply on the cheap
Posted:Apr 21, 2009
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