ChildOfVision
Member
Hi!
Does anybody know how these cheap car chargers work?
**broken link removed**
They are small so there is no room for a heatsink, so I guess that they do not operate on the principle of common LM317 or 7805 IC's. They maybe work using the step-down converter? I want to build DIY charger/power source for my GPS (5V/1-2A) for use in car (≥12V) with minimum "easy to find" parts with as little power/HEAT dissipation as possible!
TIA!
Does anybody know how these cheap car chargers work?
**broken link removed**
They are small so there is no room for a heatsink, so I guess that they do not operate on the principle of common LM317 or 7805 IC's. They maybe work using the step-down converter? I want to build DIY charger/power source for my GPS (5V/1-2A) for use in car (≥12V) with minimum "easy to find" parts with as little power/HEAT dissipation as possible!
TIA!