| 摘要 |
PURPOSE: To provide the temperature control system of the communication equipment which reduces the price and size of the communication equipment. CONSTITUTION: This system is equipped with a temperature detector 2 which detects the temperature in the communication equipment 1 and outputs a temperature detection signal, a power source controller 3 which outputs a battery saving cycle signal BS having pulse width in inverse proportion to the voltage level of the temperature detection signal T, and a power source supplier 4 which supplies a source voltage V to the power source controller 6 according to the battery saving cycle signal BS. In concrete, the power source controller 3 has an A/D converting circuit 30 which converts the analog temperature detection signal T into a digital signal D, a pulse width control circuit 31 which outputs a control signal C for generating the battery saving cycle signal BS having the pulse width in inverse proportion to the digital signal D, and a battery saving cycle signal generating circuit 32 which outputs a battery saving cycle signal BS having pulse width corresponding to the control signal C to the power source supplier 4. |
