Two output pin protocol for speed, direction, and diagnosis

A sensor device, comprising:

• at least one first sensor element configured to generate at least one first sensor signal based on sensing a varying magnetic field;
• at least one second sensor element configured to generate at least one second sensor signal based on sensing the varying magnetic field, wherein the at least one first sensor signal is phase-shifted from the at least one second sensor signal;
• a signal processing circuit configured to generate a first pulsed signal based on the at least one first sensor signal, determine a phase-shift direction of a phase-shift between the at least one first sensor signal and the at least one second sensor signal, and generate a second pulsed signal based on the determined phase-shift direction, wherein the signal processing circuit is further configured to detect a phase-shift inversion of the phase-shift, and switch a state of the second pulsed signal in response to detecting the phase-shift inversion;
• a fault detector configured to detect at least one fault and generate an error signal indicating the at least one fault in response to detecting the at least one fault;
• and
• an output generator configured to receive the first pulsed signal and the second pulsed signal, receive the error signal based on a first condition that the fault detector detects the at least one fault, and parallelly output a first output signal and a second output signal,
• wherein, based on a second condition that the fault detector does not detect the at least one fault, the output generator is configured to output the first pulsed signal as the first output signal and output the second pulsed signal as the second output signal,
• wherein, in response to the first condition being satisfied, the output generator is configured to maintain the first output signal in a steady state and output the second pulsed signal as the second output signal, and
• wherein the output generator is configured to output the first output signal from a first output pin and output the second output signal from a second output pin that is different from the first output pin.

A sensor device, comprising:

• at least one first sensor element configured to generate at least one first sensor signal based on sensing a magnetic field component of a varying magnetic field;
• a signal processing circuit configured to generate a first pulsed signal based on the at least one first sensor signal and generate a second pulsed signal in duplicate to the first pulsed signal;
• a fault detector configured to detect at least one first fault and generate a first error signal indicating the at least one first fault in response to detecting the at least one first fault;
• and
• an output generator configured to receive the first pulsed signal and the second pulsed signal, receive the first error signal based on a first condition that the fault detector detects the at least one first fault, and parallelly output a first output signal and a second output signal, wherein, based on a second condition that the fault detector does not detect the at least one first fault, the output generator is configured to output the first pulsed signal as the first output signal,
• wherein, in response to the first condition being satisfied, the output generator is configured to maintain the first output signal in a steady state and output the second pulsed signal as the second output signal, and
• wherein the output generator is configured to output the first output signal from a first output pin and output the second output signal from a second output pin that is different from the first output pin.

A sensor device, comprising:

• at least one first sensor element configured to generate at least one first sensor signal based on sensing a magnetic field component of a varying magnetic field;
• a signal processing circuit configured to generate a first pulsed signal based on the at least one first sensor signal and generate a second pulsed signal in duplicate to the first pulsed signal;
• a fault detector configured to detect at least one first fault and generate a first error signal indicating the at least one first fault in response to detecting the at least one first fault, detect at least one second fault and generate a second error signal indicating the at least one second fault in response to detecting the at least one second fault, detect at least one third fault and generate a third error signal indicating the at least one third fault in response to detecting the at least one third fault, and detect at least one fourth fault and generate a fourth error signal indicating the at least one fourth fault in response to detecting the at least one fourth fault;
• and
• an output generator configured to receive the first pulsed signal and the second pulsed signal, receive the first error signal based on a first condition that the fault detector detects the at least one first fault, receive the second error signal based on a second condition that the fault detector detects the at least one second fault, receive the third error signal based on a third condition that the fault detector detects the at least one third fault, receive the fourth error signal based on a fourth condition that the fault detector detects the at least one fourth fault, and parallelly output a first output signal and a second output signal, wherein, based on a fifth condition that the fault detector does not detect the at least one first fault, the at least one second fault, the at least one third fault, or the at least one fourth fault, the output generator is configured to output the first pulsed signal as the first output signal and output the second pulsed signal as the second output signal, and
• wherein, in response to the first condition being satisfied, the output generator is configured to maintain the first output signal in a high steady state and output the second pulsed signal as the second output signal, wherein, in response to the second condition being satisfied, the output generator is configured to maintain the first output signal in a low steady state and output the second pulsed signal as the second output signal, wherein, in response to the third condition being satisfied, the output generator is configured to maintain the second output signal in the high steady state and output the first pulsed signal as the first output signal,
• wherein, in response to the fourth condition being satisfied, the output generator is configured to maintain the second output signal in the low steady state and output the first pulsed signal as the first output signal, and
• wherein the output generator is configured to output the first output signal from a first output pin and output the second output signal from a second output pin that is different from the first output pin.