US 12,395,086 B2
Driving circuit for driving electronic element
Chun-An Cheng, Kaohsiung (TW); Wen-Yi Yan, Kaohsiung (TW); Long-Fu Lan, Kaohsiung (TW); Cheng-Kuan Lin, Kaohsiung (TW); and Sheng-Hong Hou, Kaohsiung (TW)
Assigned to I-SHOU UNIVERSITY, Kaohsiung (TW)
Filed by I-SHOU UNIVERSITY, Kaohsiung (TW)
Filed on Jan. 22, 2024, as Appl. No. 18/418,378.
Claims priority of application No. 112144632 (TW), filed on Nov. 17, 2023.
Prior Publication US 2025/0167686 A1, May 22, 2025
Int. Cl. H02M 3/335 (2006.01); H05B 45/3725 (2020.01)
CPC H02M 3/33569 (2013.01) [H05B 45/3725 (2020.01)] 12 Claims
OG exemplary drawing
 
1. A driving circuit for driving an electronic element, comprising:
an inductive coupling circuit, comprising
a primary winding and a secondary winding;
a primary side circuit, electrically connected to an input voltage source, the primary winding and a first terminal of the electronic element; and
a secondary side circuit, electrically connected to the secondary winding, the primary side circuit and a second terminal of the electronic element, wherein
the driving circuit uses an electric energy stored in the primary side circuit and an electric energy stored in the secondary side circuit to drive the electronic element wherein
the primary side circuit comprises:
a first diode, a cathode of the first diode is electrically connected to the input voltage source, and an anode of the first diode is electrically connected to a first terminal of the primary winding;
a first capacitor, a first terminal of the first capacitor is electrically connected to the cathode of the first diode and the first terminal of the electronic element, the second terminal of the first capacitor is electrically connected to a second terminal of the primary winding; and
a power switch, a first terminal of the power switch is electrically connected to the anode of the first diode, a second terminal of the power switch is electrically connected to a reference low voltage, and a control terminal of the power switch receives a control signal.