POWER-TYPE VOLTAGE-MULTIPLYING DRIVING CIRCUIT AND ELECTRIC NAIL GUN USING POWER-TYPE VOLTAGE-MULTIPLYING DRIVING CIRCUIT

摘要

With respect to a defect that a large-size capacitor is required to implement voltage multiplication in the prior art, the present invention provides a power-type voltage-multiplying driving circuit capable of overcoming the defect. An alternating current power supply J1, a unidirectional conducting element D1, and a charge storing element C are connected in series to form a charging circuit for charging the charge storing element C. A parallel circuit formed by the charge storing element C and the unidirectional conducting element D3 is connected in series to the alternating current power supply J1, a load R, and a switch element SCR to form a load driving circuit for performing voltage multiplication driving on the load R. A control unit KZ detects the voltage of the alternating current power supply J1 and controls, based on the detected voltage, ON and OFF of the switch element SCR, so as to perform voltage multiplication driving on the load R by means of the mutual cooperation between the control unit KZ, the alternating current power supply J1, the charge storing element C, and the switch element SCR after the unidirectional conducting element D1 charges the charge storing element C, the voltage driving the load R being adjusted between 1 and 2 times of the peak voltage of the alternating current power supply J1.

主权项

1. A power-type voltage-multiplying driving circuit, comprising:
a charging circuit, formed by connecting an AC power supply J1, a unidirectional conducting element D1, and a charge storing element C connected in series, and configured to charge the charge storing element C; a load driving circuit, formed by connecting a parallel circuit with the AC power supply J1, a load R, and a switching element SCR in series, configured to drive the load R by voltage-multiplication, wherein the parallel circuit including the charge storing element C and a unidirectional conducting element D3 connected in parallel; and a control unit KZ, configured to detect voltage of the AC power supply J1 and control ON/OFF of the switching element SCR on the basis of the detected voltage, such that the control unit KZ, the AC power supply J1, the charge storing element C, and the switching element SCR will work together to drive the load R by voltage multiplication after the charge storing element C is charged via the unidirectional conducting element D1, wherein the driving voltage for the load R can be adjusted within 1 time to 2 times of the peak voltage of the AC power supply J1.