Patent ID: 11908959
Assignee: ANPEC ELECTRONICS CORPORATION
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 11:
12. The light sensor according to claim 1, wherein the voltage reversing circuit includes:
a first switch component, wherein a first terminal of the first switch component is connected to the photoelectric component and the first input terminal of the comparator, and a second terminal of the first switch component is connected to a first terminal of the capacitor;
a second switch component, wherein a first terminal of the second switch component is connected to a second terminal of the capacitor, and a second terminal of the second switch component is grounded;
a third switch component, wherein a first terminal of the third switch component is connected to the photoelectric component and the first input terminal of the comparator, and a second terminal of the third switch component is connected to the second terminal of the capacitor; and
a fourth switch component, wherein a first terminal of the fourth switch component is connected to the first terminal of the capacitor, and a second terminal of the fourth switch component is grounded;
wherein, when the first switch component and the second switch component are turned on, the capacitor is charged to the first voltage;
wherein, when the third switch component and the fourth switch component are turned on, the capacitor is charged to the second voltage from the reverse voltage of the first voltage.