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1. 发明授权

US11025156B2 Power apparatus, current detecting circuit and current detecting method 有权
公开(公告)号：US11025156B2
公开(公告)日：2021-06-01
申请号：US16504312
申请日：2019-07-07
申请人： FSP TECHNOLOGY INC.
发明人： Yaw-Chien Huang , Chun-Hao Yu , Kuo-Chieh Chan
IPC分类号： H02M1/32 , H02H9/02 , G01R15/04 , H02M1/00
摘要： A power apparatus, a current detecting circuit and a current detecting method are provided. The power apparatus includes a power conversion circuit and the current detecting circuit. The power conversion circuit generates an output current. The current detecting circuit includes first and second current sensing resistors and a control circuit. The first current sensing resistor and the second current sensing resistor sense the output current to generate first and second sensing voltage, respectively. The control circuit receives the first sensing voltage and the second sensing voltage, and converts the first sensing voltage and the second sensing voltage respectively into a first current sensing value and a second current sensing value. The control circuit triggers a protection mechanism when the first current sensing value is greater than a first overcurrent protection value. In the case where the first current sensing value is not greater than the first overcurrent protection value, the control circuit triggers the protection mechanism if the second current sensing value is greater than a second overcurrent protection value. The first overcurrent protection value is greater than the second overcurrent protection value.

2. 发明申请

US20200099219A1 POWER APPARATUS, CURRENT DETECTING CIRCUIT AND CURRENT DETECTING METHOD 审中-公开
公开(公告)号：US20200099219A1
公开(公告)日：2020-03-26
申请号：US16504312
申请日：2019-07-07
申请人： FSP TECHNOLOGY INC.
发明人： Yaw-Chien Huang , Chun-Hao Yu , Kuo-Chieh Chan
IPC分类号： H02H9/02 , H02M1/32 , G01R15/04
摘要： A power apparatus, a current detecting circuit and a current detecting method are provided. The power apparatus includes a power conversion circuit and the current detecting circuit. The power conversion circuit generates an output current. The current detecting circuit includes first and second current sensing resistors and a control circuit. The first current sensing resistor and the second current sensing resistor sense the output current to generate first and second sensing voltage, respectively. The control circuit receives the first sensing voltage and the second sensing voltage, and converts the first sensing voltage and the second sensing voltage respectively into a first current sensing value and a second current sensing value. The control circuit triggers a protection mechanism when the first current sensing value is greater than a first overcurrent protection value. In the case where the first current sensing value is not greater than the first overcurrent protection value, the control circuit triggers the protection mechanism if the second current sensing value is greater than a second overcurrent protection value. The first overcurrent protection value is greater than the second overcurrent protection value.

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