Description: The design of the subject adopts to improve simple current source and make it as current source circuit.Voltage controlled constant current circuit composed of a field effect transistor and operational amplifier OP07, the degree of saturation control effect tube to realize voltage controlled constant current. Using precision sampling resistance to obtain the feedback current signal, the load applied differential amplifier as the feedback voltage.The whole process using PCF8591 to convert analog and analog to digital.
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01-LED数控调光电源（程序好）\222
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............................\STARTUP.A51
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01-LED数控调光电源（程序好）
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