Low voltage electronic self-defense baton

This is a handheld low-voltage electronic self-defense stick, which is composed of a transistor BG to form an oscillator, and after storing energy, it supplies the thyristor automatic discharge circuit to generate high voltage...
This is a handheld low-voltage electronic self-defense stick, which is small in size and low in power consumption. A No. 5 battery can be discharged 3,000 times as a power source, and it is safe and reliable to use (see Figure 1-1). The transistor BG forms an oscillator, which boosts 1.5V DC through T1, rectifies D, and stores energy in C3 before supplying the thyristor automatic discharge circuit. After turning on the switch S, the voltage across C3 continues to rise. When the voltage rises to a certain set value (usually around 400V, adjusted by R3). The thyristor obtains a reliable trigger voltage on the sliding arm of R3, turning on the thyristor SCR. Therefore, the voltage on C3 is added to the primary of the secondary step-up transformer T2, and a pulse high voltage of more than 10,000 volts is induced on the secondary of T2, so that a 3-4mm arc is generated between the ignition electrodes to complete the self-defense discharge.