Title:
【発明の名称】AC電圧が給電される負荷の制御回路
Document Type and Number:
Japanese Patent JP2002527025
Kind Code:
A
Abstract:
The invention concerns a control circuit for controlling a load to be supplied in alternating current voltage, comprising a two-way switch capable of being controlled by phase angle, in series with the load between two terminals applying the alternating current supply, and comprising, in parallel with the switch, a first resistive element, a first capacitor and an element, in series with the first resistive element and the first capacitor, and operating, in steady state conditions, as a constant current source, the midpoint of the association in series connection of the first resistive element and the first capacitor being connected, via an element with two-way conduction automatically triggered when the voltage at its terminals exceeds a predetermined threshold, to a terminal controlling the switch.
Inventors:
Rive Baleland
Pesani Robert
Pesani Robert
Application Number:
JP2000573133A
Publication Date:
August 20, 2002
Filing Date:
September 29, 1999
Export Citation:
Assignee:
STMicroelectronics Society Anonymous
International Classes:
H02H9/00; H02M1/08; H05B39/04; H02M5/257; H05B39/02; (IPC1-7): H02M1/08; H05B39/04
Attorney, Agent or Firm:
Keiichi Yamamoto