Digital control constant current source

Published:2011/4/22 0:22:00 Author:Nicole | Keyword: Digital control, constant current source | From:SeekIC

This digital control constant current source is designed for charging to storage battery. D/A converter outputs a voltage value to the in-phase terminal of below operational amplifier, the current I=Uad/ sampling resistance, two PORT is used to connect the +, - polar of storage battery. The above operational amplifier is connected into a amplifier circuit with 1/4 amplification. It is used to test the storage battery voltage. In figure, the two regulator are 3dd13 and 3dd15.



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