Heat utilization circuits, electronic devices
A circuit and heat energy technology, applied in the field of circuits, can solve problems such as heat generation, power utilization rate cannot reach 100%, damage to electronic device components, etc., and achieve the effect of simple structure
Inactive Publication Date: 2017-05-31
NANNING FUGUI PRECISION IND CO LTD
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Problems solved by technology
[0002] As we all know, when electronic devices are working, because the utilization rate of electric energy cannot reach 100%, heat will inevitably be generated.
The heat generation not only wastes electric energy, but also easily damages electronic device components once the heat is too much
At present, although there are circuits that can convert heat energy into electrical energy, however, the current circuits are difficult to achieve the maximum utilization efficiency of heat or need to realize the maximum efficiency utilization of heat through complex structures
Method used
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[0013] see figure 1 , is a functional block diagram of the electronic device 100 with the thermal energy utilization circuit 1 in the first embodiment of the present invention. The electronic device 100 includes the heat utilization circuit 1 and the power consumption element 2 . The thermal energy utilization circuit 1 is used to convert thermal energy into electrical energy to supply power to the power consumption element 2 .
[0014] The thermal energy utilization circuit 1 includes a thermoelectric conversion unit 10 , a PWM (Pulse Width Modulation, pulse width modulation) signal generation unit 20 , a comparison unit 30 and a control unit 40 . The thermoelectric conversion unit 10 is used to convert heat energy generated by the electronic device 100 into electrical energy. The PWM signal generation unit includes a first end 21 and a second end 22, wherein the first end is electrically connected to the thermoelectric conversion unit 10, and the second end 22 is connected...
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A heat energy utilization method comprises the steps that heat energy is converted into electric energy, and the electric energy is converted into a PWM voltage signal through a PWM signal generation circuit to supply power to a power consumption component; input voltage of the power consumption component is obtained and is compared with a reference voltage value; if the input voltage is greater than the reference voltage value, the duty ratio of the PWM voltage signal output by the PWM signal generation circuit is controlled to increase; if the input voltage is smaller than the reference voltage value, the duty ratio of the PWM voltage signal output by the PWM signal generation circuit is controlled to decrease. The invention further provides a heat energy utilization circuit and an electronic device. According to the heat energy utilization circuit, the electronic device and the heat energy utilization method, the heat energy can be utilized most efficiently through the simple structure.
Description
technical field [0001] The invention relates to a circuit, in particular to a heat utilization circuit, an electronic device with the heat utilization circuit and a method. Background technique [0002] As we all know, when an electronic device is working, since the utilization rate of electric energy cannot reach 100%, heat is inevitably generated. The generation of such heat not only wastes electric energy, but also easily causes damage to electronic device components once the heat is too much. At present, although there are circuits capable of converting heat energy into electrical energy, it is difficult for current circuits to achieve the maximum utilization efficiency of heat or it needs to realize the maximum efficiency utilization of heat through complex structures. Contents of the invention [0003] In view of this, a thermal energy utilization circuit is provided, which can convert heat into electric energy with a simple structure and realize utilization with ma...
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IPC IPC(8): H02M3/156
Inventor 黄森隆
Owner NANNING FUGUI PRECISION IND CO LTD