Dialog Semiconductor Gmbh

Kai-Wen Chin

Jianming Yao

Fuqiang Shi

Cong Zheng

David H Nguyen

Yong Li

John William Kesterson

Pengju Kong

Tao Li

Guang Feng

John Shi

Yimin Chen

Mengfei Liu

Juyoung Yoon

Yong Xiong Lin

Mingsheng Peng

Henry Wong

A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.

Short circuit and soft short protection for data interface charging

A flyback converter is provided that detects a load-transient-produced increase in the output current to more quickly detect and respond to the load transient.

Flyback converter with fast load transient detection

An output current calibration is disclosed to increase the accuracy and precision of the constant-current mode for a flyback converter.

Flyback converter with output current calibration

A switching power converter is configured to control switching noise by implementing a plurality of pulse width modulation modes of operation. The peak current in each pulse width modulation mode of operation is controlled so that an output power for the switching power converter is continuous with regard to transitions between the pulse width modulation modes.

Frequency hopping for reducing switching power converter noise

A direct charging method is provided that alerts a mobile device when a switching power converter is operating in a constant-current mode to alert the mobile device of an output current without the use of a secondary-side current sense resistor.

Switching power converter for direct battery charging

An output voltage calibration circuit and technique is disclosed to increase the accuracy and precision of the constant-voltage mode for a flyback converter.

Flyback converter with output voltage calibration

A switching power converter is provided that cycles a power switch during a group pulse mode of operation to produce a train of pulses within a group period responsive to a control voltage being within a group mode control voltage range. Depending upon the control voltage, the number of pulses in each train of pulses is varied to provide a linear power delivery to the load.

Smart grouping control method for power converter switching noise management

A line ripple compensation technique is provided for a switching power converter operating in both a pulse frequency mode of operation and a pulse width modulation mode of operation.

Line ripple compensation for switching power converters

A power switch transistor for a switching power converter is maintained on during a re-startup period by a zener breakdown voltage following a fault condition for the switching power converter. A source voltage from the power switch transistor is used to charge a VCC capacitor that stores a power supply voltage for a controller for the switching power converter.

Active startup timing control at fault mode

Smart Grouping control method for power converter switching noise management

Frequency hopping for reducing switching noise in a switching power converter

A two-terminal device that is configured to respond to a voltage modulation of an input signal received through the two terminals by triggering an action. The two-terminal device is further configured to verify a result of the triggered action by modulating a current driven through the two termi+6nals.

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Campbell, CA, United States of America

Kai-Wen Chin