High-speed PWM control apparatus for power converters with adaptive voltage position and its driving signal generating method
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United States of America Patent
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Sep 19, 2006
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N/A
app pub date -
Nov 25, 2005
filing date -
Sep 5, 2005
priority date (Note) -
Expired
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Abstract
A high-speed PWM control apparatus with adaptive voltage position and a driving signal generating method thereof is provided. The present invention automatically detects a change in the loading and adjusts the voltage position instantaneously for stabilizing the voltage and reducing the loading output power consumption. The present invention does not require a clock signal to generate a driving signal and does not require an error amplifier to control the modulation. Therefore, the present invention has a fast transient response that responds to the change of the loading instantaneously and has a stabilizing effect. When the apparatus is on a continuous conduction mode (CCM), the switching frequency of the controller is still fixed even though the input voltage Vin and the output voltage Vout are changed. The electrical-magnetic noise disturbance is improved.
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