Low dissipation voltage regulator

Details Low dissipation voltage regulator Low dissipation voltage regulator

G - Physics

05

F

323/13

G05F 1/44 (2006.01)

Patent

CA 1072182

LC-33 ABSTRACT OF THE DISCLOSURE (D-75) The disclosed voltage regulator circuit provides a regu- lated direct output voltage, across first and second output termin- als, when an unregulated direct input voltage is applied across first and second input terminals. The second terminals are common to both input and output connections. A voltage reference device, having first and second electrodes, is connected so that the second electr- ode is connected to the second terminals. A first DC amplifier has an input circuit connected between the first input terminals and the first electrode, and an output circuit connected between the first output terminals and the first electrode. A second DC amplifier has an input circuit connected to the input circuit of the first DC amplifier and an output circuit connected to the output circuit of the first DC amplifier. The second DC amplifier, besides -sharing the current load requirements with the first DC amplifier, also controls a bias current through the voltage reference device. The voltage reference device provides both amplifiers with a constant reference voltage enabling the amplifiers to maintain a constant output voltage despite changes in input voltage.

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