Match Document Document Title
9134743 Low-dropout voltage regulator  
A low-dropout voltage regulator includes a power transistor configured to receive an input voltage and to provide a regulated output voltage at an output voltage node. The power transistor...
9035631 LDO (low drop out) having phase margin compensation means and phase margin compensation method using the LDO  
The phase margin compensation method according to an exemplary embodiment of the present invention includes: outputting reference voltage (Vout2); outputting a first reference voltage (Vout1)...
9030178 Current control circuit and method thereof for a power converter  
A power converter used in the current control circuit and control method, consisting of a converter, a voltage divider circuit, a current sampling circuit, a first gain circuit, a differential...
9030179 Switching regulator with variable compensation  
A switching regulator circuit includes a power stage and a compensation network. The compensation network includes a programmable transconductance (gm), having a first selectable transconductance...
9024602 Regulator with low dropout voltage and improved output stage  
The regulator with low dropout voltage comprises an error amplifier and an output stage comprising an output transistor and a buffer circuit comprising an input connected to the output node of the...
9024601 Voltage converting apparatus with low power consumption  
A voltage converting apparatus is disclosed. The voltage converting apparatus includes a pulse width modulation (PWM) signal generating circuit, a power transistor, a first inductor, a second...
9018576 Low drop-out regulator with distributed output network  
Disclosed is a low drop-out voltage regulator circuit with a distributed output network coupled to a pixel array for use in image sensor circuitry. The regulator circuit comprises voltage...
9000743 Multi-channel constant voltage and constant current converting controller and apparatus  
A multi-channel constant voltage and constant current converting controller is provided. It comprises a multi-channel balance circuit and an error amplifier circuit. The multi-channel balance...
8981747 Regulator  
The regulator has a differential circuit that generates a comparison signal corresponding to the difference between an input voltage and a voltage related to the output voltage, a first transistor...
8981840 Reduction in on-resistance in pass device  
A pass device configured from a common gate transistor, wherein an input voltage is applied to the source and an output at the drain is applied to a load. The input resistance of the pass device...
8981746 Enhanced efficiency low-dropout linear regulator and corresponding method  
A low-dropout linear regulator includes an error amplifier which includes a cascaded arrangement of a differential amplifier and a gain stage. The gain stage includes a transistor driven by the...
8975883 Soft start scheme under low voltage power  
A soft start circuit includes an error amplifier for generating a control signal according to an input voltage, a feedback voltage and a reference voltage, a feedback circuit for generating the...
8975882 Regulator with improved wake-up time  
A regulating circuit includes a first comparator configured to control a turning on and a turning off of a first transistor based on a first comparison a reference voltage to a feedback voltage....
8970197 Voltage regulating circuit configured to have output voltage thereof modulated digitally  
A voltage regulator circuit includes a plurality of transistors and a control circuit. Each transistor has two source/drain terminal and a gate terminal. One source/drain terminal of each...
8970189 Voltage generation circuit  
A voltage generation circuit supplies an internal power supply voltage to an internal circuit via an output terminal and includes a regulator, a second drive element, and a control circuit. The...
8957648 Output switching circuit  
An output switching circuit includes a switching circuit having a first transistor connected to a high-voltage power supply, a second transistor connected to a low-voltage power supply, and an...
8952619 Low cost LED driver with integral dimming capability  
A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an...
8947060 Regulator over-voltage protection circuit with reduced standby current  
An embodiment of the invention relates to a power converter formed with an error amplifier and a related method. In an embodiment, a first switch is coupled in series with an error amplifier...
8947125 Fast, low power comparator with dynamic bias background  
A comparator circuit comprising an operational amplifier configured to compare a difference between a switching voltage and a reference voltage, and a dynamically adjustable bias current generator...
8941320 Method of driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus  
A method of driving a light source includes outputting a variable driving voltage to a light source part, sensing a first voltage based on the driving voltage and developed at a first end of the...
8933634 Low cost LED driver with integral dimming capability  
A distributed system for driving strings of series-connected LEDs for backlighting, display and lighting applications includes multiple intelligent satellite LED driver ICs connected to a an...
8928296 High power supply rejection ratio (PSRR) and low dropout regulator  
A low dropout voltage regulator (LDO) includes first and second amplifiers and a current mirror. The first amplifier includes a first input receiving a reference voltage and a second input...
8922179 Adaptive bias for low power low dropout voltage regulators  
A low dropout (LDO) voltage regulator includes a voltage regulation loop for providing a gate drive signal to an output device, the gate drive signal proportional to an output current. The voltage...
8917069 Low drop-out voltage regulator with dynamic voltage control  
A low dropout voltage regulator circuit that dynamically adjusts its output voltage has a voltage adjustment circuit in communication with a dynamic voltage controlling circuit for modifying the...
8917071 Regulator circuit  
There is provided a regulator circuit capable of increasing the capacity of the output transistor for supplying current, stably generating an internal power supply voltage and adapting to the...
8912772 LDO with improved stability  
A low drop-out (LDO) voltage regulator which parallels a second pass device to a first pass device, where the second pass device has in series a small resistor. The small value resistor is a...
8884595 Phase compensation circuit, semiconductor integrated circuit having phase compensation circuit, and power supply circuit having phase compensation circuit  
In a power supply circuit, an error amplifier controls a main transistor based on a detection voltage according to an output voltage and a reference voltage corresponding to a target voltage of...
8884604 Adaptive feedback cascode  
A current mirror for generating a substantially identical current flow in two parallel current paths, each current path comprising a switching device and each switching device comprising first and...
8884594 Voltage regulator  
Provided is a voltage regulator having improved overshoot characteristics. In the voltage regulator, a current limiting circuit formed of, for example, a constant current source is provided in...
8872492 On-chip low voltage capacitor-less low dropout regulator with Q-control  
Systems and method for a capacitor-less Low Dropout (LDO) voltage regulator. An error amplifier is configured to amplify a differential between a reference voltage and a regulated LDO voltage....
8866456 Method of forming a power supply controller and structure therefor  
In one embodiment, a method of forming a power supply controller may include configuring the power supply controller to control a pass transistor to form an output current responsively to a...
8866460 Dynamic dropout control of a power supply  
A power supply uses a power converter to generate a regulated voltage by referencing to a first DC voltage, a low dropout (LDO) regulator to generate an output voltage from the regulated voltage...
8866457 Voltage regulator  
A voltage regulator has a phase compensation circuit which changes consumption current according to load current thereby to reduce consumption current. The phase compensation circuit includes: a...
8860389 Fast load transient response circuit for an LDO regulator  
A fast load transient response circuit includes a feedback loop that senses a load transient; a first driver and a second driver responsive to a feedback signal from the feedback loop; and a first...
8854023 Low dropout linear regulator  
Various embodiments of the present invention provide apparatuses and methods for regulating an output voltage. For example, an apparatus is discussed that includes a low dropout regulator having a...
8847678 Frequency compensation circuit for voltage regulator  
A frequency compensation circuit for a voltage regulator is provided in embodiments of the present invention. The frequency compensation circuit mainly includes a first transconductance...
8841893 Dual-loop voltage regulator architecture with high DC accuracy and fast response time  
Dual-loop voltage regulator circuits and methods in which a dual-loop voltage regulation framework is implemented with a first inner loop having a bang-bang voltage regulator to achieve nearly...
8810218 Stabilized voltage regulator  
A voltage regulator includes a pass transistor, an operational amplifier and a voltage divider circuit. The pass transistor receives a supply voltage to generate a regulated output voltage...
8810224 System and method to regulate voltage  
A system and method to regulate voltage is disclosed. In a particular embodiment, a voltage regulator includes an error amplifier, a voltage buffer responsive to the error amplifier, and a first...
8810220 Power supply device, a processing chip for a digital microphone and related digital microphone  
A power supply device, a processing chip for a digital microphone and related digital microphone are described herein. In one aspect, a power supply device includes: at least two cascaded...
8779736 Adaptive miller compensated voltage regulator  
A linear voltage regulator includes a Miller frequency compensation having a movable zero, which tracks the frequency of the load pole as the load condition changes. The compensated voltage...
8773096 Apparatuses and methods responsive to output variations in voltage regulators  
A voltage regulator includes an amplifier to generate a difference voltage responsive to a comparison of a reference voltage and a feedback voltage. An output driver is coupled to the amplifier...
8766610 Multi-stage voltage regulator  
Provided is a voltage regulator capable of reducing an influence of an offset to obtain an accurate output voltage. The voltage regulator includes: a first stage amplifier for amplifying and...
8760133 Linear drop-out regulator circuit  
According to one aspect of the embodiment, a linear regulator circuit includes an output transistor outputting an output current based on a input voltage, an error amplifier outputting a control...
8754620 Voltage regulator  
Described herein are principles for designing and operating a voltage regulator that will function stably and accurately without an external capacitance for all or a wide range of load circuits...
8754621 High power supply rejection linear low-dropout regulator for a wide range of capacitance loads  
A method to maintain stability of a low drop-out linear voltage regulator (LDO) includes sensing, by a voltage controlled variable resistor, a node voltage in a feedback network of the LDO linear...
8717003 Voltage regulator circuit including pulse generators  
A voltage regulator circuit includes: a first pulse generator configured to output a pulse whose level remains unchanged when an input signal of a first circuit is in a first period, and whose...
8716993 Low dropout voltage regulator including a bias control circuit  
A low dropout (LDO) regulator includes a voltage regulation loop for providing an output voltage to an output terminal, where the output voltage is proportional to a reference voltage. The voltage...
8710811 Voltage regulator with improved voltage regulator response and reduced voltage drop  
A voltage regulator includes an output drive device configured to provide an output voltage to an output terminal; an error amplifier configured to control the output drive device by taking into...
8704501 Driver, current regulating circuit thereof, and method of current regulation, with alternating voltages therein  
A current regulating circuit includes a transistor and an operational amplifier. The transistor receives a load current and generates a feedback voltage corresponding to the load current. The...