Other

Sony Corporation

Tadashi Oomura

Genichiro Oga

Masafumi Kikuchi

In a remote control receiving system of an electronic apparatus such as a television receiver, a charger is connected to the output terminal of a sub regulator for driving a load such as a microcomputer by using an AC power source as an energy source, and a charging switch is connected between the load and the charger, and thereby the charging switch is controlled to turn on or off by a comparator on the basis of the charged voltage in the charger.

Electronic apparatus including remote control receiving system and AC adapter system

First, second and third capacitors (,) having predetermined capacitance values are connected in series in a commercial alternating current line. A rectifier bridge (,) including two diodes (,) having backward characteristics adjusted to a Zener voltage is connected in parallel with the capacitor (,) in the center, and a smoothing capacitor is connected between a first end and a second end of the rectifier bridge (,). As a result, it is possible to divide alternating current (AC) from a power input terminal into a desired voltage while insulating it, and clip it with a predetermined voltage to shape it into a voltage waveform close to a rectangular wave and smooth it. Thereby, a stabilized DC voltage with less ripples can be obtained.

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Kanagawa, Japan

Tadashi Oomura