Control circuit and control method for oil gas well multistage perforation detonator

The invention discloses a control circuit for an oil gas well multistage perforation detonator. The control circuit comprises a positive and negative voltage conversion circuit which is connected with a power source and a driving circuit. The two ends of the power source are connected with a power voltage monitor and a voltage stabilizing voltage in parallel respectively, and the power voltage monitor, the voltage stabilizing voltage and the driving circuit are connected with a digital controller. An AD sampling pipe pin of the digital controller is further connected with a pressure sensor and a temperature sensor. A serial port communication pipe pin of the digital controller is connected with a communication interface, and the digital controller is further connected with a memorizer. The invention further discloses a similarity control method for the oil gas well multistage perforation detonator. According to the device and method, full digitalization control for multistage detonation is achieved, the detonation success rate of the multistage detonator is improved, and universality, safety and reliability of a system are improved.