Power amplifier
AssigneeHimax Technologies Limited
InventorsShin-Wei Chao, Hsiang-Hsu Lai, Hsiang-Yi Wu
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Abstract
A power amplifier includes a voltage converter that converts an input voltage to a converted voltage; an output circuit coupled to receive the converted voltage and configured to generate an output voltage at an output node; a discharge transistor electrically connected between the output node and earth and configured to perform discharge at the output node under control of a control voltage; a voltage tracking circuit that tracks the input voltage; and an electric charge storage circuit being under control of the voltage tracking circuit and configured to maintain the control voltage when the input voltage drops to a predetermined voltage level in order to continuously turn on the discharge transistor before completing discharge at the output node.
Claims14
A power amplifier, comprising:
- a voltage converter that converts an input voltage to a converted voltage;
- an output circuit coupled to receive the converted voltage and configured to generate an output voltage at an output node;
- a discharge transistor electrically connected between the output node and earth and configured to perform discharge at the output node under control of a control voltage;
- a voltage tracking circuit that tracks the input voltage;
- and
- an electric charge storage circuit being under control of the voltage tracking circuit and configured to maintain the control voltage when the input voltage drops to a predetermined voltage level in order to continuously turn on the discharge transistor before completing discharge at the output node.
Dependencies are inferred from the claim text.