常规的现有技术泵响应于指示负载已达到预定电压的信号而关闭。
The conventional prior art pump turns off in response to a signal indicating that the load has reached a predetermined voltage.
为了进行测量，在预定的时间(通常为60秒钟)内，给样品施加恒定的电压。然后，用皮安计或静电计测量产生的电流。
To make the measurement, a constant voltage is applied for a predefined period, usually 60 seconds, and the resulting current is measured with a picoammeter or electrometer.
一种具有欠电压保护电路(11)的电压调节器(10)和一种用于防范输出电压小于预定的电平的方法。
A voltage regulator (10) having an undervoltage protection circuit 11 and a method for protecting against an output voltage out being less than a predetermined level.
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