Modulator yechikamu - Kutanga mberi
Hwaro hwekuchinja kwechikamu chemodulator:
Chiratidzo chemafrequency eredhiyo chine kutakura kwemagetsi muchimiro che sine wave, inova hwaro hwechiratidzo. Kukura kwesimba kunotevera curve iyi munzira yakanaka uye negative, ichidzokera kunzvimbo yekutanga mushure mekutenderera kwakazara - inotevera curve ye sine wave. Sine wave inogonawo kumiririrwa nekufamba kwakatenderedza poindi mudenderedzwa, uye phase pane chero nzvimbo iAngle iri pakati pepoindi yekutanga nenzvimbo iri pa waveform. Phase iyi inofambira mberi nekufamba kwenguva, saka mapoinzi ari pa waveform anogona kunzi ane musiyano we phase pakati pawo. Phase modulation inoshanda nekuchinja phase yechiratidzo, ndiko kuti, kuchinja mwero wepoindi inofamba ichitenderedza denderedzwa. Kana modulation isina kushandiswa, izvi zvinoshandura phase yechiratidzo. Nemamwe mashoko, kumhanya kwekutenderera kutenderedza denderedzwa kunogadziriswa maererano neavhareji. Kuti izvi zviitike, zvinodikanwa kushandura frequency yechiratidzo munguva pfupi. Nemamwe mashoko, kana phase modulation ikashandiswa kuchiratidzo, pane shanduko ye frequency, uye zvinopesana. Phase ne frequency zvakabatana zvisingaparadzaniswi nekuti phase inhengo ye frequency.
CHINANGWA: Kuwedzera kupatsanurwa kwe input-output kwe phase modulator yese nekupa zero setting circuit inoita signal voltage kubva ku driving circuit zero kana carrier cut-off signal yaiswa.BUMBA: Diode switch circuit 10 i five-stage low-pass filter type switch circuit inoshandisa PIN diodes 12 na 14; kana voltages dzakasiyana munzira dzakaiswa kuma diodes 12 na 14 kubva ku control circuit 16, switch inobatidzwa uye kana forward voltages dzakaiswa, ma diodes 12 na 14 anoita kuti pave short circuit, nokudaro achicheka carrier. Control circuit 16 inoshandisa forward voltages kuma diodes 12 na 14 inoshandiswa ne carrier cut-off signal. Driving circuit 30, kana carrier cut-off signal ikaiswa kuburikidza ne line 40, inodzora zvine simba voltage signal kuti ipe two-phase PSK modulator 20 kusvika zero.
Zhuo Meng Shanghai Auto Co., Ltd. yakazvipira kutengesa zvikamu zvemota zveMG&MAUXS zvinogamuchirwa kutenga.
