Low power consumption electronic circuit

Details Low power consumption electronic circuit Low power consumption electronic circuit

1981-08-13

1984-01-24

Shoop, William M.

Electric power conversion systems

Current conversion

With voltage division by storage type impedance

368204, H02M 306

Patent

active

044280408

ABSTRACT:
According to the present invention, the voltage of a battery is supplied to an electronic circuit such as a watch circuit through a step down circuit which is constructed of capacitors and switching MIDFETs. The step down circuit performs a current converting operation as well as a voltage converting operation. The operating current of the electronic circuit is reduced by the reduction in the operating voltage of the same. As a result that the operating current level of the electronic circuit is dropped and that the current conversion is performed by the step down circuit, the battery current is relatively largely dropped. The construction thus far described elongates the lifetime of the battery. According to the present invention, therefore, there is provided a circuit which is proper for driving the step down circuit.

REFERENCES:
patent: 4094137 (1978-06-01), Morokawa
patent: 4205369 (1980-05-01), Asano
patent: 4308609 (1981-12-01), Tamaki

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