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    • 1. 发明申请
    • RATIO METER OF A THERMAL SENSOR
    • 热传感器的比率表
    • US20140211905A1
    • 2014-07-31
    • US13754151
    • 2013-01-30
    • Mei-Chen CHUANGJui-Cheng HUANGAlan ROTH
    • Mei-Chen CHUANGJui-Cheng HUANGAlan ROTH
    • G01K1/00
    • G01K1/00G01K1/02G01K7/01G01K7/34G01K2219/00
    • A ratio meter includes a converter circuit, a first counter, a delay circuit, and a second counter. The converter circuit is configured to receive a temperature-independent signal, to convert the received temperature-independent signal into a first frequency signal during a first phase, to receive a temperature-dependent signal, and to convert the temperature-dependent signal into a second frequency signal during a second phase. The first counter is configured to receive the first frequency signal and to generate a control signal by counting a predetermined number of pulses of the first frequency signal count. The delay circuit is configured to delay the control signal for a predetermined time delay. The second counter is configured to receive the second frequency signal and to generate a count value by counting the second frequency signal.
    • 比率计包括转换器电路,第一计数器,延迟电路和第二计数器。 转换器电路被配置为接收温度独立信号,以在第一阶段期间将接收到的与温度无关的信号转换为第一频率信号,以接收依赖于温度的信号,并将温度相关信号转换为第二频率信号 频率信号在第二阶段。 第一计数器被配置为接收第一频率信号并且通过对预定数量的第一频率信号计数的脉冲进行计数来产生控制信号。 延迟电路被配置为延迟控制信号达预定的时间延迟。 第二计数器被配置为接收第二频率信号并且通过对第二频率信号进行计数来产生计数值。