Tools and materials
LEDs 10W / 10V-9pcs;
heatsink from the processor;
diode bridge;
Power Supply;
capacitors: 14mkf 400V-1pcs (or assembly), 560mkf 200V-2pcs, 470mkf 200V-2pcs;
fuse;
case from a compact disc;
super glue cyanocrylate;
The author assembled the searchlight according to the following scheme.
The radiator glues the LEDs as close to each other as possible. As the author assures, the super glue cyanocrylate has good thermal conductivity. After the adhesive has hardened, it solders the ends of the LEDs in series.
It removes the board from the power supply housing (we do not touch the cooler, socket and switch).
Cuts a window from the side of the power supply unit from the side of the ventilation hole. It cuts out glass from a CD case and fastens it to a window.
Solder the cooler to the LED. A fuse is soldered between the socket and the switch. Two capacitors and a diode bridge are soldered from the board. Collects a smoothing capacitor. Four capacitors are soldered in series and parallel, two at 560 microfarads and two at 470 microfarads so that the two central contacts are negative and the two extreme ones are positive. Solder the discharge resistor. Glues capacitors to the case and solders LEDs to them. Next, soldering the resistor to the quenching capacitor builds it into the circuit. Solder diode bridge. In parallel with the quenching capacitor, a 2.2mkf 400V capacitor is built in. Spotlight power is 56W.
