12 Volt 20 Amp Power Supply
This power supply is designed to deliver a stable output voltage adjustable between 12.2 volts and 14.4 volts, making it suitable for a variety of electronic devices that operate within this voltage range. The LM723 voltage regulator is a versatile component known for its reliability and efficiency in regulating voltage. It is capable of handling the necessary control functions for this power supply, ensuring that the output voltage remains stable despite variations in load.
The inclusion of four parallel-connected outboard pass transistors significantly enhances the power supply's ability to handle high current loads. By distributing the current across multiple transistors, thermal stress on individual components is reduced, which improves overall reliability and performance. Each of these transistors is connected in such a way that they share the load equally, preventing any single transistor from becoming a weak point in the circuit.
To protect the power supply and connected devices, a current limiting feature is integrated into the design. This feature ensures that the output current does not exceed 25 amps, which is critical for preventing damage to both the power supply and the load. If the current exceeds this threshold, the circuit automatically reduces the output voltage or shuts down, depending on the specific implementation of the current limiting mechanism.
Overall, this power supply design is ideal for applications requiring adjustable voltage and high current, making it suitable for powering various electronic devices, including motors, chargers, and other equipment that demand significant power. The robust design and protective features ensure safe and reliable operation under a wide range of conditions.A 12 Volt high current 20 Amp power supply. The output voltage is variable from 12.2 Volt to 14.4V so can be set for any device requiring voltage and current in that range. This PSU uses an LM723 as the regulator, 4 parallel connected outboard pass transistors and has current limiting above 25 amps..
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