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US 2017/0250654 A1Published application
Dynamic dead time management
AssigneeQUALCOMM Incorporated
InventorWilliam COPE
Life of this patent
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AssigneeQUALCOMM Incorporated
InventorWilliam COPE
Estimating the term…
Certain aspects of the present disclosure provide methods and apparatus for dynamically managing the dead time between turning on output power stage transistors in amplifiers, such as audio amplifiers. One example method of operating an amplifier generally includes generating a drive signal based on an input signal; amplifying the drive signal by alternatively driving a first transistor and a second transistor with a time between deactivating the first transistor and activating the second transistor; and adjusting the time based on a parameter of the input signal or the drive signal, during the amplifying. For example, the parameter may include an amplitude of the input signal, a duty cycle of the drive signal, or a duty cycle of a modulated signal (e.g., a pulse-width modulated signal) generated based on the input signal. The input signal may be a digital audio input signal.
A method of operating an amplifier, comprising:
An amplifier comprising:
An apparatus for amplifying an input signal, comprising:
Dependencies are inferred from the claim text.