Watchdog monitoring circuit and method for controlling energization of the load using the watchdog monitoring circuit
First Claim
1. A watchdog monitoring circuit, comprising:
- a first signal detection circuit configured to determine a first error condition associated with a first device when the first signal detection circuit does not receive a first plurality of signal pulses having a first predetermined characteristic from the first device;
a second signal detection circuit configured to determine a second error condition associated with a second device when the second signal detection circuit does not receive a second plurality of signal pulses having a second predetermined characteristic from the second device; and
a first electrical control circuit operably associated with the first and second signal detection circuits, the first electrical control circuit configured to remove power from a load when either the first signal detection circuit determines the first error condition or the second signal detection circuit determines the second error condition.
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Accused Products
Abstract
A watchdog monitoring circuit and a method related thereto are provided. The watchdog monitoring circuit includes a first signal detection circuit configured to determine a first error condition associated with a first device when the first signal detection circuit does not receive a first plurality of signal pulses having a first predetermined characteristic from the first device. The watchdog monitoring circuit further includes a second signal detection circuit configured to determine a second error condition associated with a second device when the second signal detection circuit does not receive a second plurality of signal pulses having a second predetermined characteristic from the second device. The watchdog monitoring circuit further includes a first electrical control circuit operably associated with the first and second signal detection circuits. The first electrical control circuit is configured to remove power from a load when either the first signal detection circuit determines the first error condition or the second signal detection circuit determines the second error condition.
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Citations
16 Claims
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1. A watchdog monitoring circuit, comprising:
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a first signal detection circuit configured to determine a first error condition associated with a first device when the first signal detection circuit does not receive a first plurality of signal pulses having a first predetermined characteristic from the first device;
a second signal detection circuit configured to determine a second error condition associated with a second device when the second signal detection circuit does not receive a second plurality of signal pulses having a second predetermined characteristic from the second device; and
a first electrical control circuit operably associated with the first and second signal detection circuits, the first electrical control circuit configured to remove power from a load when either the first signal detection circuit determines the first error condition or the second signal detection circuit determines the second error condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling energization of a load utilizing a watchdog monitoring circuit electrically coupled to an electrical control circuit, the watchdog monitoring circuit having first and second signal detection circuits electrically coupled to the electrical control circuit, the electrical control circuit being electrically coupled to the load, the method comprising:
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determining a first error condition associated with a first device when the first signal detection circuit does not receive a first plurality of signal pulses having a first predetermined characteristic from the first device, indicating a first error condition associated with the first device;
determining a second error condition associated with a second device when the second signal detection circuit does not receive a second plurality of signal pulses having a second predetermined characteristic from the second device, indicating a second error condition associated with the second device; and
removing power from the load when at least one of the first and second error conditions are determined, utilizing the electrical control circuit. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification