The presented circuit offers an adjustable constant current source capable of reaching up to 60mA, operating at voltages as high as 350V. Circuit Description The input stage, consisting of resistor R1 and zener diode ZD1, delivers 8V to the regulator (a 7805), maintaining this voltage relative to its reference line. This voltage level ensures sufficient […]
Power Supply Circuits
100V Regulated Power Supply Circuit with Over Current and Short Circuit Protection
A trustworthy and adaptable power source is essential in the world of electronic circuits. The design we present here not only offers a regulated output voltage range of 50V to 100V but also integrates safeguards to prevent potential mishaps. Let’s examine the specifics of this power supply circuit, discovering its special characteristics and how it […]
Constant Current Generator Circuits Explained
Constant current generators (CCGs), as the name suggests, are circuits designed to produce a steady load current regardless of significant fluctuations in load resistance or voltage levels. Basic Constant Current Generator Circuit Illustrated in Figure 1 is a basic example of such a circuit. In this configuration, Q1 operates in the common emitter mode. A […]
How to Modify a Transformer
Commonly, the perfect transformer might not be readily accessible for purchase, or if it is available, it can be costly. Nonetheless, there is a possibility of modifying the transformer’s secondary winding, especially when producing small voltage and current outputs. This approach can provide a highly cost-effective solution for creating a customized power supply. Transformer Power […]
How to Connect LM338 IC in Parallel to Increase Output Current
The LM338 is an adjustable 3-terminal positive voltage regulator capable of providing up to 5 amperes of output current. To increase the output current capability, you can connect multiple LM338 ICs in parallel. When you connect them in parallel, each IC will share the load current, allowing you to achieve higher total current handling capacity. […]
12 Amp Power Supply Circuit using Parallel LM317 ICs
This adjustable power supply is capable of delivering a maximum output of 12 A with an adjustable voltage from 4 V to 20 V through many LM317 ICs connected in parallel. It will allow testing of any device requiring a significant power supply, such as a direct current motor, a car amplifier, or even a […]
