| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 330290000 | Including D.C. feedback bias control for stabilization | 6 |
| 20110181364 | Biasing methods and devices for power amplifiers - Biasing methods and devices for power amplifiers are described. The described methods and devices use the power amplifier output voltage to generate bias voltages. The bias voltages are obtained using rectifiers and voltage dividers. The described biasing methods and devices can be used with class-E power amplifiers. | 07-28-2011 |
| 20140347131 | SEMICONDUCTOR DEVICE AND CIRCUIT WITH DYNAMIC CONTROL OF ELECTRIC FIELD - A circuit, comprising a semiconductor device with one or more field gate terminals for controlling the electric field in a drift region of the semiconductor device; and a feedback circuit configured to dynamically control a bias voltage or voltages applied to the field gate terminal or terminals, with different control voltages used for different semiconductor device characteristics in real-time in response to a time-varying signal at a further node in the circuit. | 11-27-2014 |
| 20160190994 | CURRENT-MODE CONTROL FOR RADIO-FREQUENCY POWER AMPLIFIERS - Current-mode control for radio-frequency (RF) power amplifiers. In some embodiments, an RF power amplifier control circuit can include a sensor configured to measure a base current of a power amplifier and generate a sensed current. The control circuit can further include a sensing node configured to receive a reference current and perform a current-mode operation with the sensed current to yield an error current. The control circuit can further include a control loop configured to generate a control signal based on the error current to adjust an operating parameter of the power amplifier. | 06-30-2016 |
| 20160254785 | APPARATUS AND METHOD FOR POWER SUPPLY MODULATION | 09-01-2016 |
| 20160380597 | ENVELOPE TRACKING POWER CONVERTER - A tracking power converter for a radio frequency power amplifier includes a boost converter circuit, a switching network circuit, a filter circuit, and a controller circuit. The boost converter circuit provides a boosted voltage in response to a battery voltage. The switching network provides a switching signal in response to the boosted voltage, a first switch enable signal, a second switch enable signal, and a third switch enable signal. The filter circuit provides a power converter output voltage in response to the switching signal. The controller circuit provides the first switch enable signal, the second switch enable signal, and the third switch enable signal in response to a predetermined reference voltage, the switching voltage, the boosted voltage, and the battery voltage. | 12-29-2016 |
| 20180026585 | WIDEBAND SINGLE-ENDED IM3 DISTORTION NULLING | 01-25-2018 |
