Validation circuit for reference voltage shifted data
First Claim
1. A controller comprising:
- a high-side circuit referenced to an offset-voltage reference that is offset voltage-wise relative to a ground reference of the controller;
a low-side circuit operable to output a control signal for the high-side circuit, wherein the control signal is referenced to the ground reference;
a level-shift circuit configured to output a shifted signal to the high-side circuit that is referenced to the offset-voltage reference and based on the control signal;
a data-validation circuit configured to receive the shifted signal, determine a first value of the shifted signal at a first instant, determine a second value of the shifted signal at a second instant different in time from the first instant, and validate the shifted signal based on a determination that the first value and the second value correspond.
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Accused Products
Abstract
A controller includes a high-side circuit, a low-side circuit, a level-shift circuit, and a data-validation circuit. The high-side circuit is referenced to an offset-voltage reference that is offset voltage-wise relative to a ground reference of the controller. The low-side circuit is operable to output a control signal for the high-side circuit. The control signal is referenced to the ground reference. The level-shift circuit is configured to output a shifted signal to the high-side circuit that is referenced to the offset-voltage reference and based on the control signal. The data-validation circuit is configured to receive the shifted signal, determine a first value of the shifted signal at a first instant, determine a second value of the shifted signal at a second instant different in time from the first instant, and validate the shifted signal based on a determination that the first value and the second value correspond.
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Citations
10 Claims
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1. A controller comprising:
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a high-side circuit referenced to an offset-voltage reference that is offset voltage-wise relative to a ground reference of the controller; a low-side circuit operable to output a control signal for the high-side circuit, wherein the control signal is referenced to the ground reference; a level-shift circuit configured to output a shifted signal to the high-side circuit that is referenced to the offset-voltage reference and based on the control signal; a data-validation circuit configured to receive the shifted signal, determine a first value of the shifted signal at a first instant, determine a second value of the shifted signal at a second instant different in time from the first instant, and validate the shifted signal based on a determination that the first value and the second value correspond. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification