Allis Electric Co., Ltd.

Other

Tsinghua University

Realtek Semiconductor Inc.

Lndata, Inc.

Ming-Chieh Cheng

Ching-Tsai Pan

Liang-Wei Huang

Ching-Ming Lai

Chih-Hsing Fang

Wen-Wei Chan

Yen-Shin Lai

Yan-Guei Chen

Yu-Chuan Wang

En-Lin Chen

Yen-Liang Chou

A method for performing a data exchanging process to exchange data includes the following steps: establishing a data operating unit, transferring an encryption key to a first terminal, receiving first data encrypted according to the encryption key from the first terminal, combining first subset data of the first data and second subset data of second data encrypted according to the encryption key in the data operating unit to form result data wherein the first subset data and the second subset data respectively have a common identifier, delivering the result data to the first terminal and terminating the data operating unit. Besides, a non-transitory computer-readable medium and a system to perform the method are disclosed.

Method for exchanging data and non-transitory computer-readable medium and system thereof

An Ethernet physical-layer circuit corresponding to a first port is connected to a first link partner device through the first port and a first Ethernet cable. The Ethernet physical-layer circuit and other physical-layer circuits all employ an output oscillation signal of a crystal oscillator to respectively generate clock waveforms, and they are configured in a master mode when the crosstalk noise is converged and compensated.

Ethernet transceiver device and ethernet physical-layer circuit

A smart phase switching method includes setting a first phase switching threshold, a convergence upper bound, and a convergence lower bound, sampling a received signal continuously for acquiring a phase offset accumulated value of the received signal during each period, updating the first phase switching threshold to generate a second phase switching upper bound threshold and a second phase switching lower bound threshold when a plurality of phase offset accumulated values of the received signal during a first predetermined time interval fall into a range from the convergence upper bound to the convergence lower bound, and sampling the received signal continuously for determining if a phase is switched to an opposite operating point according to a phase offset accumulated value of the received signal after the second phase switching upper bound threshold and the second phase switching lower bound threshold are generated.

Smart phase switching method and smart phase switching system for a timing recovery process

The present invention relates to a pulsating current ripple cancelling circuit and a power converting system using the same cancelling circuit. The pulsating current ripple cancelling circuit includes a first transformer having a primary winding side and a secondary winding side; a second transformer having a primary winding side and a secondary winding side, wherein the primary winding side of the second transformer is electrically coupled with the primary winding side of the first transformer; a first diode electrically coupled with the secondary winding side of the first transformer; a first equivalent capacitor combination electrically coupled with the primary winding side of the first transformer; and a second equivalent capacitor combination electrically coupled with the secondary winding side of the second transformer.

Pulsating current ripple cancelling circuit and power converting system using the same

A step-up ripple free converter applied to achieve a characteristic of zero-ripple voltage, which ripple voltage is near zero, includes a ripple-regulating component, a power isolating and converting unit, a power switch, first to fourth capacitors, an auxiliary inductor, a first rectifying switch, and a second rectifying switch. The power isolating and converting unit is electrically connected to the ripple-filtering inductor, and includes a plurality of windings for separating the step-up ripple free converter into an input stage and an output stage. The power switch, the first capacitor, and the second capacitor are arranged at the input stage and are electrically connected to the power isolating and converting unit. The third capacitor, the fourth capacitor, the first rectifying switch, and the second rectifying switch are arranged at the output stage and are electrically connected to the power isolating and converting unit.

Step-up KP ripple free converter

A step-up/down DC converter applied to achieve a characteristic of zero-ripple voltage, which ripple voltage is near zero, is disclosed. The converter includes a ripple-filtering inductor, a power isolating and converting unit, a power switch, a first inductor, a first capacitor, a second capacitor, and a rectifying switch. The power isolating and converting unit comprises windings for isolation an input stage connected to a power source from an output stage connected to a load. The power switch, the first inductor, and the first capacitor are arranged at the input stage, and the second capacitor and the rectifying switch are arranged at the output stage. The ripple-filtering inductor, which may be arranged at the input or output stage, and the first inductor divide the power supplied from the power source, thus the voltage drop of the first inductor is reduced for smoothing the ripple voltage at the output stage.

Step-up/down direct current converter

A step-down DC converter configured to smooth ripple voltage. The step-down DC converter includes a ripple-filtering inductor, a power isolating and converting unit, a power switch, a first capacitor, a second capacitor, a first rectifying switch, a second rectifying switch, and a first inductor. The power isolating and converting unit includes a plurality of windings for separating the step-down-DC converter into an input stage and an output stage. The power switch and the first capacitor are arranged at the input stage, and the first capacitor is connected to the power switch. The second capacitor, the first rectifying switch, the rectifying switch, and the first inductor are arranged at the output stage, the second capacitor is connected to one terminal of the first inductor, and the other terminal of the first inductor is connected to the first rectifying switch and the second rectifying switch.

Step-down direct current converter

A high-efficiency high step-up ratio direct current converter with an interleaved soft-switching mechanism is provided. The direct current converter includes a voltage-multiplier circuit and an active clamping circuit. The voltage-multiplier circuit includes two isolating transformers, two main switches disposed on a primary side of the two isolating transformers, four diodes disposed on a secondary side of the two isolating transformers and four capacitors disposed on the secondary side of two isolating transformers, configured to boost a voltage of a direct-current power to a desired voltage value. The active clamping circuit, electrically connected to the voltage-multiplier circuit, includes two active clamp switches and a clamp capacitor to lower a voltage surge of the two main switches so that the two main switches and the two active clamp switches can be soft switched on.

High-efficiency high step-up ratio direct current converter with interleaved soft-switching mechanism

An inverter with soft switching is used for a high step-up ratio and a high conversion efficiency. The inverter includes an isolation voltage-quadrupling DC converter and an AC selecting switch. The isolation voltage-quadrupling DC converter includes an active clamping circuit. By a front-stage converter circuit, a continuous half-sine-wave current is generated. By a rear-stage AC selecting switch, the half-sine-wave current is turned into a sine-wave current. Thus, electricity may be supplied to an AC load or the grid. The circuit is protected by isolating the low-voltage side from the high-voltage side. The conversion efficiency is high. The leakage inductance is low. The switch stress is low. The inverter is durable and reliable. Hence, the inverter is suitable for use in a photovoltaic system to increase the total conversion efficiency.

Soft-switching inverter utilizing high step up ratio circuit with active clamping

A photovoltaic powered system and an alternating current (AC) module thereof are disclosed. The photovoltaic powered system provides a direct current (DC) power through a photovoltaic module and converts the DC power into an AC power, which is grid-connected to an AC utility power. The AC module of the photovoltaic powered system produces a continuous quasi-sinusoidal current and the quasi-sinusoidal current is converted into a sinusoidal current. The high-frequency harmonic components of the sinusoidal current are filtered to produce a sinusoidal output current in phase with the AC utility power, thus realizing the maximum power point tracking (MPPT) of the photovoltaic module and feeding unity-power-factor power into the AC utility power.

Growing community of inventors

Taipei, Taiwan

Ming-Chieh Cheng