Precision current sink sourcel


Posted on Feb 7, 2014

Adopted operation amplifier can obtain constant voltage source with high amplification factor and large load current, when the circuit parameter has great change, the output voltage still have high precision. The output current limit is undertaken by T3, T4 and positive feedback circuit which is composed of operation amplifier. The technical param


Precision current sink sourcel
Click here to download the full size of the above Circuit.

eters of this circuit: input voltage: UE=7~18V; maximum output voltage: Umax=UE-2V; maximum load current: Imax=5A. (View) The oscillator which is composed of unijunction transistor Q1 will produce a series of timing pluse triggering thyristor, and then the thyristor drives red LED. When the flash speed is 12/s, the work current is only 2mA. (View) When the switch teleprinter is inductive load, optical isolator provides teleprinter, 8080A or other microprocessors with protection transit. RC filter with darlington transistor pair accelerates the reset of printing magnet. (View)




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Free Power Generator Circuit
    Sound activated relay
    Non-integer-programmable-pulse-divider
    Single-supply-multivibrator
    Tachometer
    Telephone-speech-activity-detector
    Stereo Tv Decoder Circuit
    Design of a kind of simple and practical telephone alarm system
    arduino Sharp IR distance sensor outputting consistently high voltage
    10W Audio Amplifier with Bass-boost
    Burglar alarm bell



    Top