Ham radio power supply circuit with RFI elimination
Mini Projects
This is the Ham radio power supply circuit with RFI elimination for Amateur radio. A typically Radio transmitters use High-frequency transistors as current driver so can cause very severe electromagnetic. Therefore, The power supply must be able to make the current higher than 10A. Figure 1 the schematic diagram RFI elimination This circuit must have the RFI(Radio Frequency Interference) eliminate system or filter too much harmonic effect. More Ideas The output is 13.8 volts and has the short Circuit protection We want a circuit that is affordable, and easy to build. The use of the package IC number LM350T 3-Amp Adjustable …
10V to 350V Adjustable Regulator DC Power Supply
Power supply
Here is an adjustable regulator DC power supply circuit that can be provided the output high voltage is 10V to 350V. It use the transistor is based so we use often use them. Now, a transistor can tolerate more high pressure. For example; in this circuit we will use number of BU 111 or BU 126 or BUY 76. The transformer, need to have a 300 volts high voltage coil, and the 9 volts low voltage coils to the controller circuit. Then, the AC300V will flow to the rectifier by diodes D1 to D4 to DC 420 volts, which is …