Class-H switching amplifier circuit having supply voltage proportional to an audio signal
S Galal, SS Chakkirala, K Abdelfattah… - US Patent …, 2019 - Google Patents
An amplifier circuit includes an amplifier and a voltage boost circuit configured to provide a
variable supply voltage to the amplifier, the variable supply voltage continuously …
variable supply voltage to the amplifier, the variable supply voltage continuously …
Audio apparatus having dynamic ground break resistance
RB Hogan, GW Jones, NA Johanningsmeier - US Patent 9,729,964, 2017 - Google Patents
BACKGROUND An audio source device (eg, a laptop computer, a tablet computer, or a
Smartphone) can be connected through an audio cable to an audio receiver (eg, a powered …
Smartphone) can be connected through an audio cable to an audio receiver (eg, a powered …
Quick-start high-voltage boost
W Ng, YC Yeung, ML Scheel - US Patent 9,584,012, 2017 - Google Patents
In one implementation, a voltage boost assembly including a boost converter having a
capacitive element arranged at an output, and an inductive element connectable to an …
capacitive element arranged at an output, and an inductive element connectable to an …
Dynamic headroom for envelope tracking
LKA Mathe, P Li, SS Shi, Y Shi… - US Patent 9,537,450, 2017 - Google Patents
US9537450B2 - Dynamic headroom for envelope tracking - Google Patents US9537450B2 -
Dynamic headroom for envelope tracking - Google Patents Dynamic headroom for envelope …
Dynamic headroom for envelope tracking - Google Patents Dynamic headroom for envelope …
Controlled rail-voltage decay for boost power supply output protection
JM Brockmole, MR Parnell - US Patent 11,750,164, 2023 - Google Patents
Methods and systems are provided for controlling rail-voltages for amplifier output stages. In
some examples, a method may include receiving sets of data values (eg, at a power-supply …
some examples, a method may include receiving sets of data values (eg, at a power-supply …
Electroplating controller with power based head-room control
MR Borjesson - US Patent 11,159,159, 2021 - Google Patents
A method of controlling a headroom voltage of a transistor stage of an electroplating system
to maintain a target power dissipation across the transistor stage may include maintaining a …
to maintain a target power dissipation across the transistor stage may include maintaining a …
Fast ramping power amplifier boost converter
W Ng, JJ LoCascio - US Patent 11,218,116, 2022 - Google Patents
A power management integrated circuit (PMIC) can improve the ramp up speed of a boost
converter with the inclusion of a controllable switch that may modify the connection of an …
converter with the inclusion of a controllable switch that may modify the connection of an …
Jump-start power amplifier boost converter
W Ng, JJ LoCascio - US Patent 11,476,806, 2022 - Google Patents
A power management integrated circuit (PMIC) can improve the ramp up speed of a boost
converter with the inclusion of a controllable switch that may modify the connection of an …
converter with the inclusion of a controllable switch that may modify the connection of an …
RF power amplifier dynamic supply boosting circuit
DRW Leipold, B Scott, G Maxim, D Reed - US Patent 10,148,227, 2018 - Google Patents
Circuitry that includes a radio frequency (RF) power amplifier (PA) and a dynamic supply
boosting circuit, is disclosed. The RF PA receives and amplifies an RF input signal to …
boosting circuit, is disclosed. The RF PA receives and amplifies an RF input signal to …