Mai suna Optoisolator?
Takaitaccen Optoisolator
Optoisolator (ko da ake kira optocoupler ko optical isolator) yana nufin kayan aiki mai tsara da zai iya taka shiga duka masu aiki bi uku a kan jirgin ruwa.
Prinsipin Aiki
Aikin mutum yana da mafi girma na shiga da LED. Aikin faɗi yana da phototransistor da load resistor. LED da phototransistor suna cikin package mai kyau don ba a gamsarwa a kan jirgin ruwa.
Idan an yi shiga voltage a kan LED, zai taka shiga infrared light da ya fi shiga signal. Wannan light zai haɗa zuwa dielectric barrier da kuma haɗa zuwa phototransistor. Phototransistor zai ƙunshi light a kan electric current, wanda zai haɗa zuwa load resistor, zai samun output voltage. Wannan output voltage yana da muhimmanci a matsayin input voltage.
Aikin mutum da aikin faɗi suka ci gaba a kan dielectric barrier, wanda yana iya daidaita high voltages hata 10 kV da kuma voltage transients da suka ƙarin zuwa 25 kV/μs. Yana nufin haka cewa babu surge ko noise a kan aikin mutum zai iya ƙarfin ko lalace aikin faɗi.
Isolation Na Electricity
Optoisolators suna amfani da dielectric barrier don bayyana electrical isolation a kan aikin mutum da aikin faɗi, zai daidaita high voltages da kuma voltage transients.
Parametoci da Muhimmanci na Optoisolator
Current transfer ratio (CTR)
Isolation voltage
Input-output capacitance
Switching speed
Abubuwan Optoisolator
LED-photodiode
LED-LASCR
lamp-photoresistor pairs
Istifada
Power electronics
Communication
Measurement
Safety
Fadada
Sun bayyana electrical isolation a kan aikin mutum da aikin faɗi.
Sun daidaita high voltages ko currents.
Sun daidaita high voltages ko currents da za su iya lalace ko ƙarfin low-voltage ko low-current circuits.
Sun iya taka shiga a kan circuits da suka da abubuwan voltage levels, ground potentials, ko noise characteristics.
Sun iya taka shiga a kan high switching speeds da data rates.
Kasashen
Su ke da bandwidth da linearity mai kadan a matsayin wasu methods, kamar transformers ko capacitors.
Su ke da temperature da aging effects wanda suke hada performance su biyu.
Su ke da variations a current transfer ratio da input-output capacitance wanda suke hada accuracy da stability.
Kalmomin
Optoisolators suna da fadada da suke taka shiga a kan isolated circuits ta hanyar light. Suna da fadada kamar bayyana electrical isolation, daidaita high voltages, ƙarfi electrical noise, da kuma taka shiga a kan incompatible circuits. Su da kasashen kamar bandwidth mai kadan, aging effects, variations a performance, da kuma switching speed. Optoisolators suna da parametoci da muhimman specifications wanda suke haɗa suitability su a kan abubuwa. Optoisolators suna da istifada a kan power electronics, communication, measurement, safety, da wasu fields.
