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    • 3. 发明申请
    • TEMPERATURE DETECTION CIRCUIT
    • 温度检测电路
    • US20110032001A1
    • 2011-02-10
    • US12906715
    • 2010-10-18
    • Ryuta HASEGAWARyuichi MorikawaNobumitsu TadaMasami Hirata
    • Ryuta HASEGAWARyuichi MorikawaNobumitsu TadaMasami Hirata
    • H03K5/00
    • H02M1/32G01K3/005G01K7/01G01K2219/00H02M7/5387H02M2001/327
    • According to one embodiment, a temperature detection circuit is provided which requires only a small number of additional components, thus minimizing an increase in costs and which offers an insulating property and high responsiveness. A temperature detection circuit outputs a first PWM signal corresponding to a temperature of a first temperature sensor from a photointerrupter as a signal insulated from the first temperature sensor. A temperature detection circuit outputs a second PWM signal corresponding to a temperature of a second temperature sensor from a photointerrupter as a signal insulated from the second temperature sensor. A controlling arithmetic apparatus calculates a higher one of the temperatures detected by the first and second temperature sensors based on the PWM signals output from the photointerrupter.
    • 根据一个实施例,提供了仅需要少量附加部件的温度检测电路,从而最小化成本的增加并且提供绝缘性能和高响应性。 温度检测电路作为与第一温度传感器绝缘的信号,从光断续器输出对应于第一温度传感器的温度的第一PWM信号。 温度检测电路作为与第二温度传感器绝缘的信号,从光断续器输出对应于第二温度传感器的温度的第二PWM信号。 控制运算装置基于从光断续器输出的PWM信号,计算由第一温度传感器和第二温度传感器检测出的温度中的较高值。
    • 4. 发明授权
    • Temperature detection circuit
    • 温度检测电路
    • US07969227B2
    • 2011-06-28
    • US12906715
    • 2010-10-18
    • Ryuta HasegawaRyuichi MorikawaNobumitsu TadaMasami Hirata
    • Ryuta HasegawaRyuichi MorikawaNobumitsu TadaMasami Hirata
    • H03K3/42
    • H02M1/32G01K3/005G01K7/01G01K2219/00H02M7/5387H02M2001/327
    • According to one embodiment, a temperature detection circuit is provided which requires only a small number of additional components, thus minimizing an increase in costs and which offers an insulating property and high responsiveness. A temperature detection circuit outputs a first PWM signal corresponding to a temperature of a first temperature sensor from a photointerrupter as a signal insulated from the first temperature sensor. A temperature detection circuit outputs a second PWM signal corresponding to a temperature of a second temperature sensor from a photointerrupter as a signal insulated from the second temperature sensor. A controlling arithmetic apparatus calculates a higher one of the temperatures detected by the first and second temperature sensors based on the PWM signals output from the photointerrupter.
    • 根据一个实施例,提供了仅需要少量附加部件的温度检测电路,从而最小化成本的增加并且提供绝缘性能和高响应性。 温度检测电路作为与第一温度传感器绝缘的信号,从光断续器输出对应于第一温度传感器的温度的第一PWM信号。 温度检测电路作为与第二温度传感器绝缘的信号,从光断续器输出对应于第二温度传感器的温度的第二PWM信号。 控制运算装置基于从光断续器输出的PWM信号,计算由第一温度传感器和第二温度传感器检测出的温度中的较高值。