Circuit and method for generating a voltage for use during activ

Electricity: power supply or regulation systems – Including an impedance – Thermistor or resistor

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307108, H03H 100

Patent

active

059260130

ABSTRACT:
A circuit for generating an output voltage which is used during active time periods and not during inactive time periods. A DC/DC converter converts an input voltage to the output voltage. During the inactive time periods, a capacitor is charged with a quantity of charge which is then used to generate the output voltage during the active time periods. The quantity of charge is generated by a current from a current generator. The current is lead to the ground via the capacitor and a diode. As the capacitor is charged more and more, the current diminishes to zero. A control voltage switches the circuit during the active time periods so that the output voltage is obtained. The circuit can be used in a radio transmitter for portable radio equipment, in which the radio equipment is used in a radio system where transmissions occur in bursts.

REFERENCES:
patent: 4184197 (1980-01-01), Cuk et al.
patent: 4355352 (1982-10-01), Bloom et al.
patent: 4636930 (1987-01-01), Bingham et al.
patent: 5396165 (1995-03-01), Hwang et al.

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