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Anpec Electronics Corporation patents


Recent patent applications related to Anpec Electronics Corporation. Anpec Electronics Corporation is listed as an Agent/Assignee. Note: Anpec Electronics Corporation may have other listings under different names/spellings. We're not affiliated with Anpec Electronics Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Anpec Electronics Corporation-related inventors


Undervoltage protection circuit and overvoltage protection circuit

An undervoltage protection circuit and an overvoltage protection circuit include a first comparator and a second comparator. The first comparator has a first input terminal, a second input terminal, and a first output terminal. ... Anpec Electronics Corporation

Fan control system

A fan control system includes a control module, a first fan module and a second fan module. The control module provides a first control signal to the first fan module to adjust the rotation state of the first fan module. ... Anpec Electronics Corporation

Heat dissipation system and fan driving circuit

A heat dissipation system includes a control module, a first fan module and a second fan module. The first fan module is electrically connected to the control module to provide a speed signal to the control module. ... Anpec Electronics Corporation

Method for generating dimming signal of light emitting diode display device

A dimming signal arranging method used for a light emitting diode display device is provided in the present disclosure. The dimming signal arranging method used for a light emitting diode display device includes the steps: determining whether a total number of dimming unit signals of a dimming signal is greater than a number of frames of a working interval; averagely arranging a first group of the dimming unit signals in at least one frame of the frame groups that is not a predetermined frame of each frame group; arranging a second group of the dimming unit group in at least one predetermined frame of the frame groups; and providing a dimming signal.. ... Anpec Electronics Corporation

Switching-type charging circuit

Disclosed is a switching-type charging circuit including a first switch, a current detection unit, a switching circuit and a control circuit. The current detection unit is connected to the first switch and detects a current flowing through the first switch. ... Anpec Electronics Corporation

Audio control circuit

An audio control circuit is provided in the present disclosure. The audio control circuit includes an input module, a volume signal detecting module and a volume adjusting module. ... Anpec Electronics Corporation

Battery charging circuit and charging method thereof

A battery charging circuit for charging a battery is provided. The battery charging circuit includes a control module and a charging mode adjusting module. ... Anpec Electronics Corporation

Self-adaptive startup compensation device for dc-to-dc converter and method thereof

The instant disclosure provides a self-adaptive startup compensation device for a dc-to-dc converter and a method thereof. The self-adaptive startup compensation method provides an operational transconductance amplifier that outputs a bias current to the error amplifier of the negative feedback loop of the dc-to-dc converter in such a manner that the error amplifier adjusts the error amplifier signal to be outputted, thereby adjusting the compensation signal generated by the negative feedback loop during a startup period.. ... Anpec Electronics Corporation

Operational amplifier and method for reducing offset voltage of operational amplifier

Disclosed are an operational amplifier and a method for reducing an offset voltage of the operational amplifier, which control an auxiliary circuit to generate a first auxiliary current and a second auxiliary current by adjusting the resistance of a resistance regulator, thereby adjusting a first current and a second current outputted from an input-stage circuit and further adjusting the offset voltage of the operational amplifier. Therefore, the operational amplifier and the method for reducing the offset voltage of the operational amplifier use the resistors to adjust the offset voltage so as to reduce the least significant bit (lsb) distribution, thereby enhancing the accuracy of the offset voltage.. ... Anpec Electronics Corporation

Frequency calibration method for digitally controlled oscillator and apparatus using the same

The present disclosure illustrates a frequency calibration method adapted to the digitally controlled oscillator (dco) and apparatus using the same. The frequency calibration method can detect a degree of frequency offset between an actual frequency of a clock signal outputted by the digitally controlled oscillator and a desired frequency, and then performs the correlation calibration process accordingly to make sure that the frequency of the clock signal can approach to the desired frequency.. ... Anpec Electronics Corporation

Led display device

The present disclosure provides an led display device. The led display device divides each of led modules into a plurality of unit blocks. ... Anpec Electronics Corporation

Demodulation circuit and wireless charging device having the same

The present disclosure illustrates a demodulation circuit disposed in a wireless charging device. The demodulation circuit comprises a detection unit, a delay unit, a demodulation unit, a switch unit, an amplifier, an adc, a control unit and a digital demodulation unit. ... Anpec Electronics Corporation

Phase controller and multi-phase voltage converter using the same

Provided herein is a phase controller for a multi-phase voltage converter. The phase controller includes a plurality of logic control circuits, a phase selection circuit and a plurality of signal generators. ... Anpec Electronics Corporation

Charging device and control method thereof

Disclosed are a charging device and a control method thereof. The charging device comprises an adapter, an energy storage unit and a charging module. ... Anpec Electronics Corporation

09/14/17 / #20170264222

Motor control circuit

A motor control circuit is disclosed, which uses one hall sensor to sense the position of the magnetic poles of three-phase motor, and to execute phase switching mechanism by start controller and operation controller. The motor control circuit drives the three-phase motor from a start state to a normal operation state. ... Anpec Electronics Corporation

08/03/17 / #20170222580

Control apparatus for dynamically adjusting phase switching of the dc motor and method thereof

Disclosed are a control apparatus for dynamically adjusting a phase switching of a dc motor and a method thereof. A rotor in the dc motor is divided into 2 m pole areas, wherein m is a positive integer not less than 1. ... Anpec Electronics Corporation

05/04/17 / #20170126045

Compensation circuit and energy storage device thereof

The present disclosure illustrates a compensation circuit of an energy storage device. The compensation circuit includes a first error amplifier, a switching unit, a first rc network, a voltage recording module and a logic control module. ... Anpec Electronics Corporation

04/27/17 / #20170117727

Energy storage device and control method thereof

An energy storage device capable of receiving energy using an energy input interface or charging an electronic device using an energy output interface. The energy storage device includes an adapter, an energy storage unit and a charger module. ... Anpec Electronics Corporation

04/20/17 / #20170110962

Switching driver capable of reducing emi effect and power ripple

A switching driver capable of reducing emi effect and power ripple is disclosed. When the switching driver wants to increase the voltage of an output end, a non-overlapping signal generator controls a low-side driver to quickly turn off a low-side switch, and detects an ascending slope of the voltage of the output end to control a cut-off velocity of a low-side auxiliary switch. ... Anpec Electronics Corporation

03/23/17 / #20170085210

Shutdown method for motor and motor drive circuit thereof

Disclosed are a shutdown method for motor and a motor driving circuit using the same. The method comprises: shutting down a higher gate switch and a lower gate switch when a supply voltage decreases, such that the storage capacitor is charged via a back electromotive force, wherein the back electromotive force decreases as the motor gradually stops; driving the motor when the voltage of the storage capacitor is again larger than the first threshold voltage; determining whether the voltage of the storage capacitor is lower than a shutdown threshold voltage when the voltage of the storage capacitor is lower than the first threshold voltage, wherein the shutdown threshold voltage is lower than the first threshold voltage; and turning on the lower gate switch when the voltage of the first threshold voltage is lower than the shutdown threshold voltage, wherein the back current is related to the back electromotive force.. ... Anpec Electronics Corporation

03/02/17 / #20170063221

Charge pump circuit and motor thereof

The present disclosure illustrates a charge pump circuit. The charge pump circuit includes an input voltage module and a switching transistor module. ... Anpec Electronics Corporation

02/16/17 / #20170048090

Current balance method and current balance circuit thereof

The present disclosure illustrates a current balance method and a current balance circuit thereof. The current balance method is used in a multiphase digital pulse width modulator. ... Anpec Electronics Corporation

02/02/17 / #20170033689

Sido power converter operable in discontinuous conduction mode and control method thereof

Provided herein are a single-inductor dual-output (sido) power converter operable in a discontinuous conduction mode and a control method thereof. The sido power converter is operable to switch between a boost mode and a buck-boost mode. ... Anpec Electronics Corporation

01/26/17 / #20170025976

Motor speed control circuit and control method thereof

A motor speed control circuit including a voltage-dividing module, a first analog-to-digital converter, a second analog-to-digital converter and an operation module. The voltage-dividing module includes a first resistor unit and a second resistor unit. ... Anpec Electronics Corporation

01/26/17 / #20170025972

Control apparatus for eliminating magnetizing error of rotor in dc motor and method thereof

A control apparatus for eliminating a magnetizing error of a rotor in a dc motor and a method thereof. The rotor in the dc motor is provided with 2n magnetic pole positions disposed therein for phase switching, where n is a positive integer no less than 1. ... Anpec Electronics Corporation

01/26/17 / #20170023959

Sido power converter for hysteresis current control mode and control method thereof

The present disclosure illustrates a single-inductor dual-output power converter for hysteresis current control mode and a control method thereof. The sido power converter comprises an upper bridge transistor, a lower bridge transistor, an inductor, an error amplifying circuit, a detecting circuit and a control circuit. ... Anpec Electronics Corporation

01/19/17 / #20170019040

Control apparatus for dynamically adjusting phase switching of the dc motor and method thereof

Disclosed are a control apparatus for dynamically adjusting a phase switching of a dc motor and a method thereof. A rotor in the dc motor is divided into 2m pole areas, wherein m is a positive integer not less than 1. ... Anpec Electronics Corporation

01/05/17 / #20170005602

Motor driving circuit with power reversal protection and fan device

A motor driving circuit with power reversal protection and a fan device are disclosed. The motor driving circuit has a supply end and a ground end. ... Anpec Electronics Corporation

01/05/17 / #20170005577

Buck-boost converter and control circuit thereof

A buck-boost converter and a control circuit thereof are disclosed. When an input voltage is close to an output voltage (i.e., the buck-boost converter operates in a buck-boost mode), the control circuit of the buck-boost converter generates specific switching signals. ... Anpec Electronics Corporation








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