| 摘要 |
An electronic circuit for converting higher-frequency output signals from a sensor into lower-frequency input signals for a discrete input wireless transmitter. The circuit includes a differential amplifier, a digital comparator, a digital frequency divider, and a transistor switch. The differential amplifier amplifies the sensor signals as a function of a frequency of the sensor signals. The digital comparator generates a square wave signal by comparing the amplified sensor signals to a fixed reference voltage. The digital frequency divider generates a lower-frequency signal by dividing the square wave signal. The transistor switch generates the lower-frequency input signals for the discrete input wireless transmitter by switching as a function of the lower-frequency signal from the digital frequency divider. |
