SELF-ADAPTIVE CURRENT MONITORING CIRCUIT
First Claim
1. A self-adaptive current monitoring circuit, configured to monitor a current generated by an optical sensing element, the self-adaptive current monitoring circuit comprising a voltage dividing unit, a comparison unit, a threshold unit, and a voltage regulation unit;
- the voltage dividing unit coupled with the optical sensing element, and the voltage dividing unit configured to generate a corresponding divided voltage signal according to a current signal of the optical sensing element;
the comparison unit coupled with the voltage dividing unit, and the comparison unit configured to receive and generate a monitoring signal according to the divided voltage signal;
the threshold unit coupled with the comparison unit, and the threshold unit configured to receive the monitoring signal and compare the monitoring signal with a threshold signal to output a switch control signal; and
the voltage regulation unit coupled with the threshold unit and the voltage dividing unit, the voltage regulation unit configured to receive and generate a voltage regulation signal according to the switch control signal, and the voltage dividing unit receiving and outputting an increased or decreased divided voltage signal according to the voltage regulation signal.
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Accused Products
Abstract
The present invention provides a self-adaptive current monitoring circuit, configured to monitor a current generated by an optical sensing element, including a voltage dividing unit coupled with the optical sensing element for generating a corresponding divided voltage signal according to a current signal of the optical sensing element; a comparison unit coupled with the voltage dividing unit for receiving and generating a monitoring signal according to the divided voltage signal; a threshold unit coupled with the comparison unit for receiving the monitoring signal and comparing the monitoring signal with a threshold signal to output a switch control signal; and a voltage regulation unit coupled with the threshold unit and the voltage dividing unit for receiving and generating a voltage regulation signal according to the switch control signal, and the voltage dividing unit receives and outputs an increased or decreased divided voltage signal according to the voltage regulation signal.
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Citations
10 Claims
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1. A self-adaptive current monitoring circuit, configured to monitor a current generated by an optical sensing element, the self-adaptive current monitoring circuit comprising a voltage dividing unit, a comparison unit, a threshold unit, and a voltage regulation unit;
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the voltage dividing unit coupled with the optical sensing element, and the voltage dividing unit configured to generate a corresponding divided voltage signal according to a current signal of the optical sensing element; the comparison unit coupled with the voltage dividing unit, and the comparison unit configured to receive and generate a monitoring signal according to the divided voltage signal; the threshold unit coupled with the comparison unit, and the threshold unit configured to receive the monitoring signal and compare the monitoring signal with a threshold signal to output a switch control signal; and the voltage regulation unit coupled with the threshold unit and the voltage dividing unit, the voltage regulation unit configured to receive and generate a voltage regulation signal according to the switch control signal, and the voltage dividing unit receiving and outputting an increased or decreased divided voltage signal according to the voltage regulation signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification