![SOLVED: A transistor is used to switch a motor on/off with a larger current and control it using a small current. This type of circuit, when using a PNP transistor, is called SOLVED: A transistor is used to switch a motor on/off with a larger current and control it using a small current. This type of circuit, when using a PNP transistor, is called](https://cdn.numerade.com/ask_images/7a15ad27ec7040fc8209064181bbc839.jpg)
SOLVED: A transistor is used to switch a motor on/off with a larger current and control it using a small current. This type of circuit, when using a PNP transistor, is called
![Scheda IO PLC modulo relè interfaccia 4-32 canali PNP NPN ingresso optoaccoppiatore isolamento Transistor trigger tensione 3.3v - AliExpress Scheda IO PLC modulo relè interfaccia 4-32 canali PNP NPN ingresso optoaccoppiatore isolamento Transistor trigger tensione 3.3v - AliExpress](https://ae01.alicdn.com/kf/Hc4e85de8c0654fe7aaad089c4d659618H/Scheda-IO-PLC-modulo-rel-interfaccia-4-32-canali-PNP-NPN-ingresso-optoaccoppiatore-isolamento-Transistor-trigger.jpg)
Scheda IO PLC modulo relè interfaccia 4-32 canali PNP NPN ingresso optoaccoppiatore isolamento Transistor trigger tensione 3.3v - AliExpress
![Scheda amplificatore di potenza per segnale PLC NPN/PNP per guidare l'elettrovalvola Transistor di isolamento fotoelettrico 5A, 3.3V 5V 12V 24V _ - AliExpress Mobile Scheda amplificatore di potenza per segnale PLC NPN/PNP per guidare l'elettrovalvola Transistor di isolamento fotoelettrico 5A, 3.3V 5V 12V 24V _ - AliExpress Mobile](https://ae01.alicdn.com/kf/H11fbd97f5b9441449ce288aa8e2f6c16a/Scheda-amplificatore-di-potenza-per-segnale-PLC-NPN-PNP-per-guidare-l-elettrovalvola-Transistor-di-isolamento.jpg)
Scheda amplificatore di potenza per segnale PLC NPN/PNP per guidare l'elettrovalvola Transistor di isolamento fotoelettrico 5A, 3.3V 5V 12V 24V _ - AliExpress Mobile
![SOFIALXC Transistor Assortment Set Box Kit KA7805 1.5A /5V To-220 Terminale 3Pin 5PCS : Amazon.it: Commercio, Industria e Scienza SOFIALXC Transistor Assortment Set Box Kit KA7805 1.5A /5V To-220 Terminale 3Pin 5PCS : Amazon.it: Commercio, Industria e Scienza](https://m.media-amazon.com/images/I/41-8MDQKFLL._AC_UF350,350_QL80_.jpg)
SOFIALXC Transistor Assortment Set Box Kit KA7805 1.5A /5V To-220 Terminale 3Pin 5PCS : Amazon.it: Commercio, Industria e Scienza
![Scheda IO PLC modulo relè interfaccia 4-32 canali PNP NPN ingresso optoaccoppiatore isolamento Transistor trigger tensione 3.3v _ - AliExpress Mobile Scheda IO PLC modulo relè interfaccia 4-32 canali PNP NPN ingresso optoaccoppiatore isolamento Transistor trigger tensione 3.3v _ - AliExpress Mobile](https://ae01.alicdn.com/kf/S97dd982faa364bd2855241a056103c221/Scheda-IO-PLC-modulo-rel-interfaccia-4-32-canali-PNP-NPN-ingresso-optoaccoppiatore-isolamento-Transistor-trigger.jpg)
Scheda IO PLC modulo relè interfaccia 4-32 canali PNP NPN ingresso optoaccoppiatore isolamento Transistor trigger tensione 3.3v _ - AliExpress Mobile
![Is it possible to use an NPN transistor to control a 5V power supply from Arduino? - Electrical Engineering Stack Exchange Is it possible to use an NPN transistor to control a 5V power supply from Arduino? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/u1iQ9.png)
Is it possible to use an NPN transistor to control a 5V power supply from Arduino? - Electrical Engineering Stack Exchange
![Switching 12V with an NPN transistor only outputs 5V on the emitter when the base is at 5V - Electrical Engineering Stack Exchange Switching 12V with an NPN transistor only outputs 5V on the emitter when the base is at 5V - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/luKEM.png)