| 摘要 |
<p>A temperature control system comprises: an electric heater (13) that has a first face (13a) which makes contact with an electronic device (11), and a second face (13b) which is opposite the first face; a heat sink (14), coupled to the second face of the heater, which absorbs heat from an electronic device (11) through the heater's second face; and a temperature sensor (12c), coupled to the electronic device which senses the device temperature Td. A control circuit (15) is coupled to the device temperature sensor and to the heater; and it decreases the power to the heater when the sensed temperature of the electronic device is above the set point, and vice-versa. When the heater temperature Th is less than Td, then heat flows from the electronic device through the heater to the heat sink; and the rate of heat flow increases as Td-Th increases. When Th is more than Td, then heat flows to the electronic device from the heater; and the rate of heat flow increases as Th-Td increases.</p> |
