Title:
POWER SUPPLY CIRCUIT SYSTEM
Document Type and Number:
Japanese Patent JP3244222
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To transfer the internal mechanism of an audio visual equipment to a stable stop state, by providing a terminal being connected so that a control signal is inputted to a microcomputer and a terminal being connected to a regular power supply and an operation power supply, while a battery side and an AC adapter side are opened.
SOLUTION: A terminal A is selectively connected to the positive sides of a battery 61 and an AC adapter and is also connected to power supplies 52, 54, and 56. A terminal B is selectively connected to the negative sides of the battery 61 and the AC adapter and is grounded in a sound image equipment body 50. A terminal C is connected via the positive polar side of the battery 61 and an ignition switch SW4 when it is mounted on a vehicle. The terminal C is short-circuit with a terminal D when it is used in a house, and is connected to a microcomputer 51 via a resistor R1 in the audio visual equipment body 50. Furthermore, the terminal D is not connected to the battery 61 and the AC adapter, is short-circuited with the terminal C by a connector for connecting the adapter, and is connected to the power supplies 52, 54 and 56 in the audio visual equipment body.
Inventors:
Yoshio Tokuyama
Application Number:
JP15810497A
Publication Date:
January 07, 2002
Filing Date:
May 29, 1997
Export Citation:
Assignee:
Victor Company of Japan Ltd.
International Classes:
B60R16/02; B60R16/033; H02J1/00; (IPC1-7): H02J1/00; B60R16/02
Domestic Patent References:
| JP59109847A | ||||
| JP5184065A | ||||
| JP61288725A | ||||
| JP624351U |