A.series-clipper B.parallel-clipper C.series-clamper D.shunt-clamper
A.high B.low C.determined by the components that are external to the device D.constantly changing
A.10V，5mA B.11V，2mA C.11V，11mA D.2V，11mA
A.4.5V B.9V C.12V D.14V
A.变压器有半周被短路，会引起元、器件损坏 B.变为半波整流 C.电容C将过压击穿 D.稳压管将过流损坏
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