Method and device for heating electronic component and electronic apparatus using the same
First Claim
1. A device for heating an electronic component in a low-temperature environment, comprising:
- a first heater, disposed at a first electronic component;
a power module, configured for providing the first heater with required electrical energy; and
a controller, coupled to the first heater and the power module, wherein the controller is programmed to detect an output voltage and a temperature of the power module and, when the temperature is below a predetermined threshold, dynamically control the first heater to use the electrical energy of the power module to heat the first electronic component according to a duty ratio set according to the detected output voltage of the power module as follows;
when the output voltage of the power module is greater than a first threshold voltage, the controller is programmed to set the duty ratio as a first ratio;
when the output voltage of the power module is less than a second threshold voltage, the controller is programmed to set the duty ratio as a second ratio, wherein the second threshold voltage is less than the first threshold voltage and greater than zero, and the second ratio is less than the first ratio; and
when the output voltage of the power module is between the first threshold voltage and the second threshold voltage, the controller is programmed to adjust the duty ratio by conversion to a difference between the output voltage of the power module and the second threshold so that the difference between the output voltage of the power module and the second threshold voltage is positively proportional to the duty ratio.
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Accused Products
Abstract
The invention provides a method and a device for heating an electronic component and an electronic apparatus using the method/device. A heater is disposed at the electronic component. The heating method includes following steps: driving the heater according to a duty ratio by using electrical energy of a power module. If the output voltage of the power module is greater than a first threshold, set the duty ratio as a first ratio. If the output voltage of the power module is less than a second threshold, set the duty ratio as a second ratio. If the output voltage of the power module is between the first threshold and the second threshold, adjust the duty ratio so that the difference between the output voltage of the power module and the second threshold is positively proportional to the duty ratio.
15 Citations
22 Claims
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1. A device for heating an electronic component in a low-temperature environment, comprising:
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a first heater, disposed at a first electronic component; a power module, configured for providing the first heater with required electrical energy; and a controller, coupled to the first heater and the power module, wherein the controller is programmed to detect an output voltage and a temperature of the power module and, when the temperature is below a predetermined threshold, dynamically control the first heater to use the electrical energy of the power module to heat the first electronic component according to a duty ratio set according to the detected output voltage of the power module as follows; when the output voltage of the power module is greater than a first threshold voltage, the controller is programmed to set the duty ratio as a first ratio; when the output voltage of the power module is less than a second threshold voltage, the controller is programmed to set the duty ratio as a second ratio, wherein the second threshold voltage is less than the first threshold voltage and greater than zero, and the second ratio is less than the first ratio; and when the output voltage of the power module is between the first threshold voltage and the second threshold voltage, the controller is programmed to adjust the duty ratio by conversion to a difference between the output voltage of the power module and the second threshold so that the difference between the output voltage of the power module and the second threshold voltage is positively proportional to the duty ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An electronic apparatus, comprising:
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a first electronic component; a first heater, disposed at the first electronic component; a power module, configured for providing the electrical energy the first electronic component and the first heater require; and a controller, coupled to the first heater and the power module, wherein the controller is programmed to detect an output voltage and a temperature of the power module and, when the temperature is below a predetermined threshold dynamically control the first heater to use the electrical energy of the power module for heating the first electronic component according to a duty ratio set according to the detected output voltage of the power module as follows; when the output voltage of the power module is greater than a first threshold voltage, the controller is programmed to set the duty ratio as a first ratio; when the output voltage of the power module is less than a second threshold voltage, the controller is programmed to set the duty ratio as a second ratio, wherein the second threshold voltage is less than the first threshold voltage and greater than zero, and the second ratio is less than the first ratio; and when the output voltage of the power module is between the first threshold voltage and the second threshold voltage, the controller is programmed to adjust the duty ratio by conversion to a difference between the output voltage of the power module and the second threshold so that the difference between the output voltage of the power module and the second threshold voltage is positively proportional to the duty ratio. - View Dependent Claims (19, 20, 21, 22)
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Specification