G - Physics – 06 – F
Patent
G - Physics
06
F
325/1, 350/109,
G06F 1/00 (2006.01) G06F 1/24 (2006.01)
Patent
CA 1228908
ABSTRACT OF THE DISCLOSURE A switched power supply is connected to electronic circuitry the supply of power to which is to be controlled. An automatic switch enables the switched power supply selectively to energize or de-energize the electronic circuitry. A nominally continuous power supply is also provided, and a reset signal generator is connected thereto for generating a reset signal in response to a rising edge of an output voltage of the nominally continuous power supply following an interruption of the output voltage. A power switch is provided, together with a reset device actuated by the reset signal and a switching circuit controller connected to the automatic switch. A memory is connected to the switching circuit controller for memorizing the condition thereon and producing a memory output signal in response thereto. A detector detects the condition of the power switch and produces a detector output signal in response thereto. The switching circuit controller is connected to the reset device, the memory and the detector and generates a control signal for controlling the operation of the automatic switch in joint dependence on the memory output signal and the detector output signal when the reset device is actuated. -1-
473029
Hakamada Kunio
Ishiguro Satoshi
Ogawa Kiyoshi
Wakabayashi Hideo
Gowling Lafleur Henderson Llp
Sony Corporation
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