Level shifter and related methods and apparatus
First Claim
Patent Images
1. An apparatus, comprising:
- at least one ultrasonic transducer on a substrate, anda level shifter on the substrate coupled to the at least one ultrasonic transducer, the level shifter includingan input terminal configured to receive an input voltage;
an output terminal configured to provide an output voltage level-shifted from the input voltage;
a capacitor coupled between the input terminal and the output terminal; and
a diode coupled in reverse-biased configuration between an input to an active high voltage element and a first voltage of a high voltage power supply;
wherein the input of the active high voltage element is coupled to an output of the capacitor.
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Abstract
Apparatus and methods are provided directed to a device, including at least one ultrasonic transducer, a level shifter coupled to the at least one ultrasonic transducer, the level shifter including an input terminal configured to receive an input voltage, an output terminal configured to provide an output voltage level-shifted from the input voltage, a capacitor coupled between the input terminal and the output terminal, and a diode coupled in reverse-biased configuration between an input to an active high voltage element and a first voltage of a high voltage power supply.
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Citations
6 Claims
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1. An apparatus, comprising:
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at least one ultrasonic transducer on a substrate, and a level shifter on the substrate coupled to the at least one ultrasonic transducer, the level shifter including an input terminal configured to receive an input voltage; an output terminal configured to provide an output voltage level-shifted from the input voltage; a capacitor coupled between the input terminal and the output terminal; and a diode coupled in reverse-biased configuration between an input to an active high voltage element and a first voltage of a high voltage power supply; wherein the input of the active high voltage element is coupled to an output of the capacitor. - View Dependent Claims (2, 3)
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4. A level shifter, comprising:
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an input terminal configured to receive an input voltage; an output terminal configured to provide an output voltage level-shifted from the input voltage; a capacitor coupled between the input terminal and the output terminal; and a diode coupled in reverse-biased configuration between an input to an active high voltage element and a first voltage of a high voltage power supply; wherein the input of the active high voltage element is coupled to an output of the capacitor. - View Dependent Claims (5, 6)
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Specification