Temperature Compensation Circuit and Electronic Device With Temperature Compensation
AssigneeWistron Corporation
InventorPo Wen Hsueh
Life of this patent
Estimating the term…
Abstract
A temperature compensation circuit is adapted to be used in an electronic device including a processing circuit. The temperature compensation circuit includes a thermistor, a compensation capacitor and a compensation diode. The thermistor has two ends, one of which is adapted to be electrically connected to the processing circuit. The compensation capacitor has two ends, one of which is electrically connected to the other one of the two ends of the thermistor. The compensation diode has an anode electrically connected to the other one of the two ends of the compensation capacitor, and a cathode to be grounded. The impedance of the thermistor varies with temperature so as to compensate and stabilize an output of the electronic device.
Claims10
A temperature compensation circuit adapted to be used in an electronic device and to be electrically connected to a processing circuit of the electronic device, said temperature compensation circuit comprising:
- a thermistor having two ends, one of which is adapted to be electrically connected to the processing circuit;
- a compensation capacitor having two ends, one of which is electrically connected to the other one of said two ends of said thermistor;
- and
- a compensation diode having an anode electrically connected to the other one of said two ends of said compensation capacitor, and a cathode to be grounded;
- wherein impedance of said thermistor varies with temperature so as to compensate and stabilize an output of the electronic device.
An electronic device with temperature compensation, comprising:
- a processing circuit having a gain that varies with temperature;
- and
- a temperature compensation circuit including a thermistor that is electrically connected to said processing circuit and that has an impedance varying with temperature, a rate of change of the impedance of said thermistor with respect to temperature being inversely proportional to a rate of change of the gain of said processing unit with respect to temperature so as to compensate and stabilize an output of said electronic device.
Dependencies are inferred from the claim text.