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Circuit for limiting the switching current in a series circuit consisting of a current transformer, a semi-conductor device, a protection inductance and an overload-sensitive cut-out
Circuit for limiting the switching current in a series circuit consisting of a current transformer, a semi-conductor device, a protection inductance and an overload-sensitive cut-out
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机译:在由电流互感器,半导体器件,保护电感和过载敏感型断路器组成的串联电路中用于限制开关电流的电路
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摘要
Circuit arrangement for the protection of a component, particularly a switching semiconductor, which is series connected to a voltage source via an inductor, against an overcurrent due to magnetic saturation of the inductor, a second inductor in the series circuit, which limits the overcurrent during the response time of an excess current cutoff and whose magnetizing current is roughly linear over time, at least during the unsaturated state of the first inductor, and does not exceed the maximum permissible current value for the component to be protected during the entire response time.
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