Having a differential amplifier and overcurrent protection for power supply circuit 2


Posted on Mar 28, 2007

By the transistor VTa, VT4, sense resistor Ro-current protection circuit and other components. The power supply after overcurrent or short-circuit fault is eliminated, can not


Having a differential amplifier and overcurrent protection for power supply circuit 2
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resume normal operation (because VT3 conduction condition has not changed, the output voltage is still zero). To reset, you must re-closing or series in the collector circuit VTa a reset button for the job. Now the capacitor Cz from closing when the power delay action to ensure that the pilot through VT4, in order to establish the output voltage; electrical resistance Rs of the role of the regulator is to ensure that there is an appropriate VTi hope bias.




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