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Circuit arrangement for limiting the inrush current and overvoltage protection for switching mode current supply devices
Circuit arrangement for limiting the inrush current and overvoltage protection for switching mode current supply devices
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机译:限制开关模式电流供应设备的浪涌电流和过电压保护的电路装置
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摘要
Circuit arrangement for limiting the switching-on current and for overvoltage protection in the case of pulsed power supply apparatuses having a field-effect transistor (91) which limits the charging current of a storage capacitor (92) on the input side and ensures protection against overvoltages on the storage capacitor (92). In order effectively to limit the charging current over a wide input voltage range, a differential amplifier is controlled by the input voltage in additional to the actual value and desired value of the current. The circuit arrangement is particularly suitable for plug-in assemblies having voltage converters for supplying devices used in electrical telecommunications technology. IMAGE
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