Elektronische Vorrichtung

Details

Veröffentlichungs-Nr.

EP2434479

Aktenzeichen

EP11182108

Anmeldetag

21. September 2011

Veröffentlichung

14. Mai 2014

Erteilung

14. Mai 2014

Rechtsraum

EP

IPC

G10H1/00G10H1/34H02J1/00G10H1/32

Abstract

In response to turning-on of a lock-type power switch (18, 22), an initial controller (19, 20, 21, 23, 26, 27) outputs a first voltage for a first predetermined period and a gate (13) is turned on for the first predetermined period via a first driver (16, 24, 25) responsive to the first voltage, so that DC power is supplied to a main circuit section (3). During the first predetermined period, a control processor (41) causes a voltage output section (50) to start outputting a second voltage so that the gate (13) is turned on via a second driver (17, 29, 30), and the DC power supply to the main circuit section continues. Once the power switch is turned off, the first and second drivers are disabled to turn off the gate, so that the DC power supply to the main circuit section is shut off. When no event has been generated for a second predetermined period, the second voltage output from the voltage output section is stopped to turn off the gate, so that the DC power supply to the main circuit section is automatically shut off. Once a power supply from outside over a power line (11a) is switched from an OFF state to an ON state while the DC power supply is shut off with the power supply switch kept ON, the power supply to the main circuit section is automatically resumed via the initial controller and the first driver.

Anmelder

Firma

YAMAHA Corporation

Land

🇯🇵 Japan

Fachgebiete