Qualcomm Incorporated

Mohammad Wasim Sayed

Rakesh Kumar Sinha

Burcin Serter Ergun

Pradeep Kumar Sana

Raghav Gupta

Venkatesh Sadineni

Rahul Soni

Ashwith Jerome Rego

A voltage regulator includes a pass transistor coupled between an input and an output of the voltage regulator, and an amplifier having a first input configured to receive a reference voltage, and a second input coupled to the output of the voltage regulator via a feedback path. The voltage regulator also includes a voltage booster coupled between an output of the amplifier and a gate of the pass transistor, and a multiplexer having a first input configured to receive a first clock signal, a second input configured to receive a second clock signal having a higher frequency than the first clock signal, and an output coupled to a clock input of the voltage booster. The voltage regulator also includes a detection circuit having an input coupled to the amplifier, and an output coupled to a select input of the multiplexer.

Fast settled and transient low dropout (LDO) regulator

A system includes a circuit in a first power domain, a first tri-state inverter having an input coupled to the circuit, and a second tri-state inverter having an input coupled to an output of the first tri-state inverter. The system also includes a level shifter in a second power domain, wherein the level shifter has a first input coupled to the output of the first tri-state inverter and a second input coupled to an output of the second tri-state inverter. The system also includes a shunt switch, a controller, and a pass gate. The shunt switch is coupled between the first input of the level shifter and ground or coupled between the second input of the level shifter and ground. The pass gate is coupled between the controller and the second input of the level shifter or coupled between the controller and the first input of the level shifter.

Freeze enabled swing level shifter

Methods, systems, and devices for an H-bridge driver for haptics and camera voice coil motor applications are described. A device may generate a control signal for an application executing on the device such as a camera application, a gaming application, or any application receiving a user input or outputting feedback to the user. The device may generate the control signal using a voice coil motor driver of a camera component of the device. The device may drive a haptics motor based on the generated control signal and generate a haptic response based on driving the haptics motor. The device may, as a result, output the generated haptic response. Additionally or alternatively, the device may drive a voice coil motor based on the generated control signal and may control a camera component of the device based on driving the voice coil motor or the haptics motor, or both.

Driver for haptics and camera voice coil motor applications

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West Bengal, India

Mohammad Wasim Sayed