Dell Products Inc.

Lite-on Technology Corporation

Lite-on Electronics (guangzhou) Limited

Chi-Che Wu

Wei-Cheng Jason Yu

Tsung-Cheng Liao

Andrew Thomas Sultenfuss

Geroncio Ong Tan

Liang-Hong Wang

Wen-Yung Chang

Kuan-Yu Lin

Tun-Chieh Liang

Ya-Tang Hsieh

Yen-Yi Lee

Yun-Chieh Hsu

Henry Chang

Tai-Chung Chou

Tsan Chen

Yung Chang Chang

Robert D Widenhofer

A power adaptor provides power from a power source to a load device. The power adaptor includes a bulk capacitor and a controller. The controller detects a voltage level of input power from the power source, charges the bulk capacitor, detects a distortion of the voltage level in response to charging the bulk capacitor, and sets an output power limit for the power adaptor from a maximum output power limit for the power adaptor to a reduced output power limit in response to detecting the distortion.

Detecting aircraft in-seat power

An information handling system detects an initial insertion of an alternating current (AC) adapter, and determines an identifier associated with the AC adapter. The system may also determine a parameter for attenuating noise generated by the AC adapter based on the identifier, and attenuate the noise generated by the AC adapter by applying the parameter.

Adaptive noise suppression for touch screen displays

A high-performance single barrel power connector for receiving electric power may be capable of receiving more than 330 W up to approximately 600 W of power. The V+ pin and V&#x2212; pin may each be configured with a large plurality of contact points for connecting to a power plug. A connector body retaining the V+ pin and V&#x2212; pin may configured with openings to expose more of the V+ pin and V&#x2212; pin to air and allow the V+ pin and V&#x2212; pin to extend out of the power connector for convective and conductive heat transfer. A shell having a high thermal conductivity may be connected to the V&#x2212; pin and V&#x2212; pin and further connected to a bracket for increased heat transfer away from the V+ and V&#x2212; pins.

High performance single barrel power connection

A connector includes a receptacle and a plug. The receptacle includes a first terminal of a first gender. The plug includes a second terminal of a second gender opposite to the first gender. The plug further includes a cover and an insert. The cover plugs into the receptacle. The insert includes the second terminal. The insert inserts into the cover such that the first terminal makes an electrical connection with the second terminal.

Two-stage connector with internal terminal correction and repair

In one embodiment, a method for managing a light source of a power adapter includes: determining that the power adapter is coupled to a power supply; causing the light source to be in a first illuminated state indicating that the power adapter is receiving the power from the power supply; determining that a first instance of a threshold period of inactivity has occurred; causing the light source to be in an unilluminated state; determining that the power adapter is communicably coupled to an information handling system; causing the light source to be in a second illuminated state indicating that the power adapter is providing the power to the information handling system; determining that a second instance of the threshold period of inactivity has occurred; and causing the light source to be in the unilluminated state.

Managing a light source of a power adapter of an information handling system

A power adaptor system may comprise a power source supplying input voltage according to a dynamic power rating to an operably connected host information handling system, a power source identification (PSID) module of the power adaptor receiving an adjustable setting voltage from the power source via a setting voltage port of the PSID module, and a controller of the PSID module executing code instructions to select the dynamic power rating for the power source based on a measurement of the adjustable setting voltage indicating an operating condition of the power adaptor or based on an indication of an operating condition the operably connected host information handling system, wherein the dynamic power rating is one of a plurality of dynamic power ratings in including an adjustable range of power levels at each dynamic power rating at which the power source is capable of operating.

System and method for dynamically identifying a power adaptor power rating based on operating conditions

A system and method of operating an a power supply unit with a light load efficiency control system comprising a power regulator circuit for receiving an alternating current (AC) input voltage from within a range of accommodated AC input voltages and including a power factor correction (PFC) circuit and an LLC resonator circuit having a bulk capacitance voltage level and operable to receive the input AC voltage in the power supply unit and where the power supply unit generates a direct current (DC) output voltage for use by a load. The power supply unit having a processor logic core for the power regulator circuit to control a plural stage bulk capacitor voltage level having at least a high step bulk capacitor voltage level for operation when a normal load is applied to the power supply unit and a low step bulk capacitor voltage level for operation under light load conditions and a light load control circuit for receiving a control input voltage representative of the AC input voltage received by the power supply unit, comparing via a comparator circuit the control input voltage to a reference voltage generated to represent a threshold level of AC input voltage, and activating a light load control feedback signal to the processor logic core if the control input voltage exceeds the reference voltage level under light load operating conditions.

Power supply light load efficiency control circuit

A transformer structure comprising a winding stand, a first coil, two second coils, and an iron core set. The first coil winds on the winding portion of the winding stand, and the first coil connects to the first pins electrically. The second coils are two metal sheets having electrical conductivity, the two second coils are provided with a ring body and two second pins respectively, the two second coils being arranged on the side edge of the winding portion of the winding stand. The iron core set is arranged on the winding stand, and the iron core set passes internally through the first coil and the two second coils. As a result, the DC resistance is decreased and the power consumption is reduced accordingly, improving the temperature rising problem.

Transformer structure

A power supply device includes a main unit and a power switching module. The main unit includes a primary circuit board, a transformer including a primary and a secondary coil, a primary-side circuit and a secondary-side circuit. The power switching module includes a separate PCB formed with at least two connection pads and two conductive tracks, and at least one power switching element disposed on the PCB and having two terminals respectively connected to the two connection pads through the two conductive tracks. The power switching module is in the form of a separate PCB that is electrically connected to the primary- or secondary-side circuits through the two connection pads.

Power supply device and a synchronous rectifier PCB

The instant disclosure provides an intelligent pulse control circuit used for a power supply. The intelligent pulse control circuit comprises a control unit, a buffer unit, a comparing unit and a switch unit. The buffer receives a loading signal. The comparing unit is coupled to the buffer unit, receives the loading signal generated according to the current of the output loading, and compares the loading signal and the feedback signal to generate a control signal. The switch unit is controlled by the control signal of the comparing unit to provide a turn-off signal. When the output loading is light load, the switch unit controls the control unit to disable the PFC stage and the PWM stage according to the turn-off signal. Accordingly, the intelligent pulse control circuit can reduce the power consumption when the output loading is light load.

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Taipei, Taiwan

Chi-Che Wu