发明名称 |
Apparatus for detecting short-circuit of output diode in converter |
摘要 |
An apparatus comprises: a voltage monitoring unit for monitoring input direct-current voltages of first and second converters whose output ends are connected in parallel to each other; and a judgment control unit for judging that an output diode of the first converter is short-circuited, when an input direct-current voltage monitored by the voltage monitoring unit with respect to the first converter rises up to a post-step-up voltage stepped up by the second converter during a step-up operation of the second converter. |
申请公布号 |
US8884627(B2) |
申请公布日期 |
2014.11.11 |
申请号 |
US200913259972 |
申请日期 |
2009.06.18 |
申请人 |
Toyota Jidosha Kabushiki Kaisha |
发明人 |
Minamii Toshihiko;Hasegawa Takahiko |
分类号 |
G01R31/08;H02J1/10;H02J3/38;H02J7/34;H02H7/122;H02M3/158;H02M1/32 |
主分类号 |
G01R31/08 |
代理机构 |
Kenyon & Kenyon LLP |
代理人 |
Kenyon & Kenyon LLP |
主权项 |
1. An apparatus for detecting a short-circuit of output diode in a converter, used in a power-supply system that comprises first and second converters capable of stepping up an input direct-current voltage from a direct-current power supply to output a post-step-up voltage via an output diode, wherein the output ends of the first and second converters are connected in parallel to each other, the apparatus comprising:
a first voltage monitoring unit configured to monitor input direct-current voltage of the first converter; a second voltage monitoring unit configured to monitor a post-step-up voltage of the second converter; and a judgment control unit configured to judge that an output diode of the first converter is short-circuited, when the input direct-current voltage monitored by the first voltage monitoring unit rises up to the post-step-up voltage stepped up by the second converter during a step-up operation of the second converter, measured by the second voltage monitoring unit. |
地址 |
Toyota-Shi JP |