ELECTRONIC CONTROL SYSTEM AND METHOD

Title:

ELECTRONIC CONTROL SYSTEM AND METHOD

Document Type and Number:

Japanese Patent JP2009010963

Kind Code:

A

Abstract:

To allow two or three wire operation within an apparatus in an electronic control system.

A power supply (150) can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors (110) are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so that they do not exceed the MOSFETs' safe operating area (SOA) curve.

Inventors:

BLACK RICHARD L
CHRISTENSEN GRAHAM
JOHNSON BENJAMIN AARON
LEICHLITER SHAWN L
NEWMAN ROBERT C JR
THOMPSON STEPHEN SPENCER
WU CHENMING

Application Number:

JP2008189129A

Publication Date:

January 15, 2009

Filing Date:

July 22, 2008

Export Citation:

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Assignee:

LUTRON ELECTRONICS CO

International Classes:

H03K17/08; H05B37/02; H02M7/538; H03K5/1536; H03K17/082; H03K17/13; H03K17/687; H05B39/04; H05B39/08

Attorney, Agent or Firm:

Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Kenzo Hiraiwa

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