Continuous level to pulse circuit

The invention discloses a continuous level to pulse circuit, comprising a power supply input end VCC, a starting switch K1 connected with the power supply input end VCC, a load resistor R1, a triode Q1 and a capacitor C1. A base of the triode Q1 is connected with the starting switch K1 through the load resistor R1. A collector is connected with the starting switch K1. The capacitor C1 is connected with the collector and an emitter of the triode Q1. One end of a diode D1 is connected with the emitter of the triode Q1, and the other end is grounded through a load resistor R2. A power supply output end VOUT is connected with the load resistor R2 in parallel. According to the circuit, a continuous level signal is imported; the continuous level signal is converted into a pulse signal; the pulse signal satisfying required amplitude and time width can be generated by flexibly changing parameters of the resistors and the capacitor; moreover, the power of the capacitor can be discharged completely and rapidly through