Abstract:
An electronic circuit for protecting a field effect transistor from high voltage includes a switching device having a first state in which the switching device turns the field effect transistor ON, and a second state in which the switching device turns the field effect transistor OFF. A charging device is connected to the switching device and receives an electrical charge when an electrode of the field effect transistor is shorted to a voltage source. The charging device applies the electrical charge to the switching device to thereby place the switching device in the second state.
Abstract:
An engine data acquisition and control system (1) measures cylinder pressure at a high degree of resolution and then processes it for portions of the combustion cycle of interest for performing combustion calculations. The data are utilized to calculate combustion parameters, and the combustion parameters may be utilized to control the engine's (55) fuel and/or spark timing/duration, and other variables affecting the combustion process. The system architecture provides for acquisition of very large amounts of data without unduly loading the CPU (40).
Abstract:
An electronic circuit for protecting a field effect transistor from high voltage includes a switching device having a first state in which the switching device turns the field effect transistor ON, and a second state in which the switching device turns the field effect transistor OFF. A charging device is connected to the switching device and receives an electrical charge when an electrode of the field effect transistor is shorted to a voltage source. The charging device applies the electrical charge to the switching device to thereby place the switching device in the second state.
Abstract:
A variable reluctance sensor interface module (25) having a variable attenuation circuit (24) and a rectifier and differential to single-ended conversion circuit (32) for operating in a current mode to attenuate a differential input voltage. The variable attenuation circuit (24) receives an input differential voltage from a magnetic sensor (15), converts the differential voltage to current, and variably attenuates the current. The rectifier and differential to single-ended conversion circuit (32) converts the variably attenuated current to a voltage output. The input circuit includes an RC filter (400) that attenuates high frequency signals. An initial threshold circuit (410) generates an initial threshold voltage that compensates for internal resistance variations, caused e.g. by temperature variations.
Abstract translation:可变磁阻传感器接口模块(25),具有用于在电流模式下操作,以衰减的差分输入电压的可变衰减电路(24)和一整流器和差分到单端的转换电路(32)。 可变衰减电路(24)接收输入,以从磁传感器(15)的差分电压的差分电压转换为电流,并且可变地衰减的电流。 整流器和差分到单端的转换电路(32)转换的可变衰减电流的电压输出。 该输入电路包括(400)RC滤波做衰减高频信号。 初始阈值电路(410)生成初始阈值电压的速率没有用于内部电阻的变化进行补偿,引起E. G. 由温度变化。
Abstract:
An engine data acquisition and control system (1) measures cylinder pressure at a high degree of resolution and then processes it for portions of the combustion cycle of interest for performing combustion calculations. The data are utilized to calculate combustion parameters, and the combustion parameters may be utilized to control the engine's (55) fuel and/or spark timing/duration, and other variables affecting the combustion process. The system architecture provides for acquisition of very large amounts of data without unduly loading the CPU (40).
Abstract:
A variable reluctance sensor interface module (25) having a variable attenuation circuit (24) and a rectifier and differential to single-ended conversion circuit (32) for operating in a current mode to attenuate a differential input voltage. The variable attenuation circuit (24) receives an input differential voltage from a magnetic sensor (15), converts the differential voltage to current, and variably attenuates the current. The rectifier and differential to single-ended conversion circuit (32) converts the variably attenuated current to a voltage output. The input circuit includes an RC filter (400) that attenuates high frequency signals. An initial threshold circuit (410) generates an initial threshold voltage that compensates for internal resistance variations, caused e.g. by temperature variations.