Patent ID: 7038503
Filing Date: 2006-05-02
Classification: B25C

Abstract:
1. A driving circuit for electrical nailing gun comprising: a capacitive charging/discharging unit, said capacitive charging/discharging unit comprising a first resistor, a first diode, and a capacitor connected in series, said capacitive charging/discharging unit having two opposite ends respectively connected to two ends of an AC power source; an excited field unit, said excited field unit comprising a first coil and a first electrically-controlled switch connected in series, said first coil having two opposite ends connected in parallel to said capacitor; a second diode, said second diode having the positive terminal thereof connected to the positive terminal of said first diode and the negative terminal thereof connected to said first coil; a third diode, said third diode having the positive terminal thereof connected to said capacitor and the negative terminal thereof connected to said first coil; and a control unit electrically connected to said first electrically-controlled switch for activating said first electrically-controlled switch.