Title:
EVSE WELDED CONTACTOR DETECTOR
Document Type and Number:
WIPO Patent Application WO/2013/177582
Kind Code:
A3
Abstract:
In at least one embodiment, provided is an electric vehicle supply equipment having a line power contactor including a first line power input and a second line power input and a first line power output and a second line power output. It further has a welded contactor detector with a contactor sense circuit, the sense circuit having a first line shunt resistor network connected from the first line power contactor output to ground and a second line shunt resistor network connected from the first line power contactor output to ground. In another embodiment provided is an EVSE including a welded contactor detector with a contactor sense circuit having a bias resistor connected between the hot line relay input and the neutral line relay output.
Inventors:
BERMAN SCOTT GARRET (US)
FLACK ALBERT (US)
KOLB KEITH (US)
BAI MING (US)
FLACK ALBERT (US)
KOLB KEITH (US)
BAI MING (US)
Application Number:
PCT/US2013/042776
Publication Date:
June 25, 2015
Filing Date:
May 24, 2013
Export Citation:
Assignee:
AEROVIRONMENT INC (US)
International Classes:
G05B23/02
Foreign References:
| US20110216451A1 | 2011-09-08 | |||
| US20050254275A1 | 2005-11-17 | |||
| US5233312A | 1993-08-03 | |||
| US7966110B2 | 2011-06-21 | |||
| US20110298470A1 | 2011-12-08 | |||
| US7130170B2 | 2006-10-31 |
Attorney, Agent or Firm:
BALZAN, Christopher R. (Suite 105Ventura, California, US)
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