Inverter and wireless power transmitter using the same
First Claim
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1. An inverter comprising:
- a pulse generator configured to generate a reference pulse signal having a first frequency;
a gate signal generator configured to apply a pulse width modulation control having a variable duty rate, based on a second frequency, to the reference pulse signal to generate a gate signal; and
a controller configured to generate a pulse width modulation signal in response to a feedback signal from a wireless power receiver to provide the pulse width modulation signal to the gate signal generator.
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Abstract
An inverter includes a pulse generator configured to generate a reference pulse signal having a first frequency; and a gate signal generator configured to apply a pulse width modulation control having a variable duty rate, based on a second frequency, to the reference pulse signal to generate a gate signal.
12 Citations
17 Claims
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1. An inverter comprising:
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a pulse generator configured to generate a reference pulse signal having a first frequency; a gate signal generator configured to apply a pulse width modulation control having a variable duty rate, based on a second frequency, to the reference pulse signal to generate a gate signal; and a controller configured to generate a pulse width modulation signal in response to a feedback signal from a wireless power receiver to provide the pulse width modulation signal to the gate signal generator. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless power transmitter comprising:
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a transmission resonator coupled to a reception resonator of a wireless power receiver; and an inverter configured to receive a direct current (DC) voltage, to apply a pulse width modulation control to a reference pulse signal to generate a gate signal, and to perform a switching operation, in response to the gate signal, to provide an alternating current (AC) signal to the transmission resonator. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification