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The specialist of small precision motors - ORIENTAL MOTOR (INDIA) > Q＆A > Stepping Motors Qn 1: What is NPN and PNP?
Stepping Motor: What is NPN and PNP?
Answer : NPN (Sink Logic) and PNP (Source Logic) are transistor types which are used in different control output devices. Connection needs to be changed according to the transistor used. Kindly refer to the below figure 1 & 2 for the detailed connection.
However, Most of our latest products can be connected to both PNP & NPN.
E.g. AR Series or RK II Series.
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