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专利名称:MULTIFUNCTION ISOLATION
TRANSFORMER
发明人:KIRKPATRICK, William, R.申请号:EP91905145.8申请日:19910221公开号:EP05116B1公开日:19970730
摘要:a transmitter (50) provides a treatment for 4 to 20 ma current loop is detectedat a representative parameter (52), which is the transmitter (50). an output circuit (50)receives excitation from the loop (52) and regulates the release of 4 to 20 ma as afunction of an input sensor.the output circuit (60) also produces a control outputprocessor, which also serves as a clock for the isolated circuit (106). a sensor circuit (82)produces a control output parameter representing the processor is detected.an isolationtransformer (76) controlled by the control circuit turns the output sensor (82) and areference clock according to the oscillation of the circuit out of order to the detector(82).the isolation transformer (76) is a single coupling device coupling the excitation, thereference clock, sensor data and programming data on an electrical isolation barrier islocated between the output circuit (50) and the sensor circuit (82).
申请人:ROSEMOUNT INC
地址:US
国籍:US
代理机构:Cross, Rupert Edward Blount
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