Both transistors are connected in parallel to increase the high current to the output load.īut in the beginning, 2N3055 does not conduct. They power a positive voltage to a collector of two power transistors, 2N3055. To rectify with a bridge rectifier, four 5A diodes. It gets the AC voltage of 32V from transformer secondary. This circuit has 2 unregulated power supply, 43V, and 24V. LM723 is the main part to control the output voltage precisely by itself. It uses a precision voltage regulator system. Note:This circuit is not suitable for the beginner. Transformer-use 5-8A at 32V and 18V voltage.R19-5K for fine Adjustable voltage output.Because use CA3140 for Control Current and Voltage output in easily. This circuit is better than the above circuit. Please look at :Ġ-30V 0-5A variable supply with current adjustable It does not has a reference voltage for 723 and not fully overload protection. The Components layout of Regulator 0-30V 5A using LM723 2N3055 Without you have adjusting customized at any the circuit. To create just operators device in a PCB form and then to make correct completed is available. Recommended: 7805 regulator datasheet & pinout Parts you will needĬ1: 4,700uF 50V to 7,200uF 50V Electrolytic To offset features that might be slightly different, these two transistors. Then, connected to the emitter of the two 2N3055. We should not forget, use the resistor size 0.1Ω 5W amounting 2 pieces to parallel each other by use the resistors 0.1ohm 5W two pieces for the parallel, to be able to withstand loads as wanted. Just only changes the current limiting circuit. This circuit is still the principle original everything. We do not offend you, In this Power supply circuit 0-30V 5A is adapted to the work
Circuit Diagram of Variable Regulator 0-30V 5A using LM723 and 2N3055 x 2
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