Title:
PROTECTIVE DEVICE TO POLARITY REVERSAL
Document Type and Number:
Japanese Patent JP2004312996
Kind Code:
A
Abstract:
To provide a protective device against polarity reversal which overcomes a disadvantage of a well-known device.
The device protecting a circuit against polarity reversal of a connection part to a DC power supply device includes a controllable switch placed between a first terminal of a first voltage of the DC power supply device and the connection part between the first terminals of the circuit, and a first means turning off the switch with a delay under existence of a reverse polarity.
Inventors:
BIENVENU PHILIPPE
MATTEI SANDRA
MATTEI SANDRA
Application Number:
JP2004109740A
Publication Date:
November 04, 2004
Filing Date:
April 02, 2004
Export Citation:
Assignee:
ST MICROELECTRONICS SA
International Classes:
H02H11/00; H02J7/00; H02H1/04; (IPC1-7): H02J7/00
Attorney, Agent or Firm:
Keiichi Yamamoto