Constant current source design based on power amplifier (with circuit diagram)

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Summary:
In the circuit breaker reliability test equipment, the stability and accuracy of the test power supply is the basis for ensuring reliable test. Otherwise, whether in the factory test or type test of the circuit breaker, the quality of the tested product will be judged as unqualified due to fluctuations in the test power supply, and the non-conforming product may be judged as qualified. The traditional constant current source is a parameter current regulator made by the characteristics of a diode, a triode, and an integrated voltage regulator, a series feedback regulated steady current power supply, a switch steady current source, etc., but there is often a small output current range and steady current precision. Not high, low efficiency, poor reliability, large output ripple and other shortcomings. We designed a constant current source control system based on AT89C51, current output 0?100A, current accuracy ≤2%, voltage output 15V, can achieve fast, high precision, flexible, multi-functional control requirements, in circuit breaker reliability A stable, accurate test power supply is provided in the test.
(Please check the instructions for details)