发明名称 |
SYSTEM FOR IMPLEMENTATION OF I2T TRIP CHARACTERISTIC |
摘要 |
There is provided a protection circuit configured to indicate an overcurrent condition of a conductor conducting a load current, the protection circuit including a first current integrator and a second current integrator, each of the first and second integrators being configured to integrate an input voltage proportional to the load current, a summing amplifier configured to receive an offset voltage, to amplify a signal from the second integrator, and to generate a trip threshold based on the input voltage and the offset voltage, and a comparator configured to compare an output of the first current integrator and the trip threshold, and to generate a trip signal at a trip time when the trip threshold is equal to an output of the first integrator, the trip signal indicating an overcurrent condition. |
申请公布号 |
US2017117698(A1) |
申请公布日期 |
2017.04.27 |
申请号 |
US201514923372 |
申请日期 |
2015.10.26 |
申请人 |
LEACH INTERNATIONAL CORPORATION |
发明人 |
Tran Anhtai Le;Khan Imtiaz |
分类号 |
H02H3/08 |
主分类号 |
H02H3/08 |
代理机构 |
|
代理人 |
|
主权项 |
1. A protection circuit configured to indicate an overcurrent condition of a conductor conducting a load current, the protection circuit comprising:
a first current integrator and a second current integrator, each of the first and second integrators being configured to integrate an input voltage proportional to the load current; a summing amplifier configured to receive an offset voltage, to amplify a signal from the second integrator, and to generate a trip threshold based on the input voltage and the offset voltage; and a comparator configured to compare an output of the first current integrator and the trip threshold, and to generate a trip signal at a trip time when the trip threshold is equal to an output of the first integrator, the trip signal indicating an overcurrent condition. |
地址 |
Buena Park CA US |