9?10解：i1?b0?b1?v?vΩ??b2?v?vΩi2?b0?b1?v?vΩ??b2?v?vΩ?2?2?b3?v?vΩ?333?b3?v?vΩ?2v0??i1?i2?R?R2b1vΩ?4b2vvΩ?6b3vvΩ?2b3vΩ23???2b1RVΩcosΩt?3b3RV0VΩcosΩt?1.5b3RVΩcosΩt?2b2RV0VΩcos?ω0?Ω?t?2b2RV0VΩcos?ω0?Ω?t?1.5b3RV0VΩcos?2ω0?Ω?t?1.5b3RV0VΩcos?2ω0?Ω?t223?0.5b3RVΩcos3Ωt输出端的频率分量：?、3?、?0??、2?0??
9?12解：m1?P0??P0??P0???2??1?P??0T?122
?10.125?2???1??0.59??12?0.4?9?10.845?kW2m2P0T?10.125??
9?13?1?vA?t??v??t??V?cos?t vB?t??v?t? ?2?若D1D2开路，则vA?t??vB?t??v??t?
vAB?0
?3?若D1D2短路，则vA?t??v??t??V?cos?t
vB?0vAB?t??V?cos?t9?18解：R??R1?R2ri2R2?ri2?3?510?4700?10004700?1000?0.57?1335?????33?RdR3?3.14?100510?4700Kd?cos??0.87V??KdmaVim?0.87?0.3?0.5?0.13P??P??AP?V?222R?Vim2RidP?P??2?0.1322?1335VimKdR??6.33??W0.5?0.87510?47002??41.7??W??6.3341.7R?R?0.152R1?R22??R22?ri2R22?ri2?2350?1000510?2350??1?中间位置9?19解：R1?R2R2ri2R2?ri2?510?2350?1000?0.55510?4700?2?最高端R?RR1??4700?1000R1?R24700?1000?0.26510?4700最高端不会。
?R2的触点在中间位置会产生负峰切割失真，而在9?20解：由R?R1?R2??5~10?k?R2ri2R2?ri22?11?R1??~?R2?510??3?k??2取R2?6k?R?R?39?13R1?1.5k?R??R1??1.5?6?26?2ma?取ma?0.3C?1-ma1maR?max?minri23?RdRR2Kd???1?0.310.3?9000?2?3.14?30002?3.14?300?20003?3.14?1006000?1500?0.5?0.0187??F?取C1?C2?0.01?FCe???0.26??F?取Ce?20?F??33Kd?cos??0.9Rid??90002?0.9?5?k??能满足要求
9?21解：GP?QL??0CQ0f0??2?3.14?465?10?200?1010020?23.53?12?5.84??S?4652?f0.7Q0QLGP?p24goe?GPgid2p34??100?2?6?5.84?0.3?100?5.84??10??23.5???0.15324700
?1?v1?mV1cos?tcos?1t9?24解：i?kmV1cos?tcos?1tV0cos??0t????14kmV1V0?cos???1??0???t????cos???1??0???t????cos???1??0???t????cos???1??0???t????当?0??1时，vS?1412kmRVV?cos??t????cos??t?????L1012kmRLV1V0cos?cos?t无失真，?只影响输出幅度。当?0??1时，vS?有失真。kmRLV1V0cos???1??0?t???cos?t?2?v1?1212mV1cos??1???ti??kmV1cos??1???tV0cos??0t???14kmV1V0?cos???1??0???t????cos???1??0???t????14kmRLV1V0cos???1??0???t???vS?当?0??1时，?只产生相移；当
?0??1时，有失真。