Patent ID: 11870344
Assignee: EGALAX_EMPIA TECHNOLOGY INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 6:
7. The detection method of the voltage doubler switched capacitor circuit capable of detecting the short circuit of the flying capacitor as claimed in claim 6, wherein the voltage doubler switched capacitor circuit in step A comprises:
the main voltage source comprising a positive terminal, and a negative terminal electrically connected to a ground side;
the voltage output terminal comprising a first output terminal, and a second output terminal electrically connected to the ground side;
the first switch having first and second ends thereof connected in series between the positive terminal of the main voltage source and the first output terminal of the voltage output terminal;
a second switch, a third switch, a fourth switch, a fifth switch and the flying capacitor, the second switch and the fourth switch being connected in series between the positive terminal of the main voltage source and the first output terminal of the voltage output terminal, the fifth switch and the flying capacitor being connected in series and then connected in parallel at first and second ends of the second switch, a first end of the third switch being electrically connected between the fifth switch and the flying capacitor, and other end of the third switch being electrically connected to the ground side;
the stabilizing capacitor having first and second ends thereof respectively connected across the first output terminal and the second output terminal;
a first logic gate that controls on and off of one of the second and third switches and a second logic gate that controls on and off of one of the fourth and fifth switches; and
the detection circuit having first and second ends thereof respectively connected across the first output terminal and the second output terminal, the detection circuit comprising a controller, the controller having an input side thereof electrically connected with first and second comparators, the input side of the controller being for the charging pulse as a signal input, the controller having an output side thereof outputting plural control signals including a first switch control signal, a second switch control signal and a third switch control signal for controlling the first switch, the second and third switches and the fourth and fifth switches.