H - Electricity – 02 – M
Patent
H - Electricity
02
M
321/29
H02M 1/08 (2006.01) H02M 3/156 (2006.01) H02M 3/335 (2006.01) H02M 3/337 (2006.01)
Patent
CA 1078013
ABSTRACT OF THE DISCLOSURE A power supply circuit comprising a dc voltage source; an inductance connected to a dc voltage from the dc voltage source; a first switch connected to the said inductance; a converter for converting the voltage produced in the inductance by the first switch into a smooth dc voltage; an output terminal connected to the converter, a load being connected in use to the output terminal; a detector for detecting the smooth dc voltage supplied to the output terminal; an oscillator; a modu- lating circuit connected to the oscillator and receiving an out- put signal derived from the detector for producing a modulated signal in accordance with the output signal; means for applying the modulated signal to said first switching means; a further detector for detecting variation in the magnitude of the load; and a further switch connected to the inductance and supplied with an output signal derived from the first mentioned detector for changing the inductance of the inductance in accordance with the output signal.
270084
Na
Sony Corporation
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