CONSTANT VOLTAGE REGULATOR Russian patent published in 2003 - IPC

FIELD: radio electronics. SUBSTANCE: constant voltage regulator incorporates first and second transistors, source of electric energy connected with first lead to common bus and with second lead to connection point of emitters of first and second transistors, voltage divider placed between output of regulator and common bus which output is connected to base of second transistor, current follower which input is connected to collector of second transistor and which output is coupled to collector of first transistor. Base of first transistor is connected to source of reference voltage. Regulator includes third transistor connected with base to connection point of output of current follower and collector of first transistor, fourth transistor which base is connected to emitter of third transistor and which emitter is linked to output of regulator. In addition regulator has first and second diodes, fifth transistor and voltage amplifier. Collector of fifth transistor is connected to connection point of second lead of source of electric energy and emitters of first and second transistors, emitter of fifth transistor is connected to common bus and its base is coupled to output of voltage amplifier. First diode is connected with cathode to collector of third transistor and with anode to input of regulator. Second diode is connected with cathode to collector of fourth transistor and with anode to input of regulator. Inverting input of voltage amplifier is connected to connection point of collector of fourth transistor and cathode of second diode and its non-inverting input is coupled to connection point of collector of third transistor and cathode of first diode. EFFECT: decreased consumption of current by regulator. 2 dwg