1The controller is controlled by a single-chip microcomputer, and the output pulse is accurate to ensure the welding quality. 2Using automatic touch welding mode, while retaining the manual trigger interface, you can choose according to your own use. 3Wide selection of welding power supply: lithium battery power supply or 12V car battery. 4With LCD display, it can display welding parameters. The controller is mainly for welding 0.1mm-0.15mm nickel-plated steel strips. 5The welding pen and the input line are connected by U-shaped cold-pressed terminals, which is convenient for disassembly and replacement. 6The power board uses 2 Gusi copper to increase the overcurrent capability. Using 5 300A MOS tubes, MOS tubes not disassembled. 7MOS tube driver adopts imported special chip driver. The fastest MOS tube can be struck with 20 nS. The switch is fast to prevent tube explosion and push-pull drive without triode. 8MOS drive design adds a transient diode to protect MOS and prevent tube explosion. 910 AWG multi-strand flexible wire is used for the soldering pen line and input line to increase the overcurrent capability. 10A 25V 10000uF high-frequency low-resistance capacitor is added to the power input for power compensation, which increases the welding stability.