Simple 12V 2A DC power supply
Power supply
Today, my son builds a simple 12V 2A DC power supply for a 12V solar pump. It is an Unregulated power supply because load is DC motor only. Note: More circuits 12V Power Supply How to works I teach son to understand the working principle of this projects. The main principle, we use this project to reduce voltage from AC-line 220V to 12V DC. On Figure 1 The AC 220V 50HZ is connected to the circuit through S1- ON-OFF switch and F1-fuse to protect this circuit. Then they flows through a 2A transformer to reduce voltage into 12V AC. Next,through …
12V linear regulator for Transceiver Radio
Power supply
This circuit is 12V linear regulator for the receiver radios model transistor. which with regard to often use current the very. Especially when do signalling . The 2N3055 transistors that use in place circuit s pay electric this power. Then must pay the electric current has very much. For a resister R1 in the circuit will perform to decrease the quantity will of the electric power to will lose to go to down and make can use cheap transistor get . And in value filtration R1. As a result have Voltage fall straddle all about 2 Volt. The Zener Diode …
12V 20Amp Power Supply by IC 7912 + 2N3055
Power supply
Here is 12 volt power supply 20A , USE LM7912 and 2N3055 . It easy circuit , Low cost. see detail more in image. This power supply is the result of the use of components at hand (junk box). The core of the project is a number of 2N3055 transistors and a transformer with a 16 volt 18 amp secondary winding. (You can see more circuits that used the 2N3055 as main) As it is constructed using the parts I had available at the time it may not be the most cost effective design if all parts are purchased new. …