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Lighting delay circuit using single-junction transistor Part 2b
Source: InternetPublisher:桂花蒸 Keywords: Unijunction transistor delay circuit BSP Updated: 2021/03/12
(2) Lighting delay-off circuit 2 using single - junction transistor The
circuit is shown in Figure 2-42. Figure 2-42 (a) uses a capacitor to step down the voltage, and the transistor VT2 is of the PNP type; Figure 2-42 (b)
uses a transformer to step down the voltage (safer), and the transistors VTz and VT3 are of the NPN type.
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