G05F1/618

Voltage regulator
10649480 · 2020-05-12 · ·

A voltage regulator is arranged to receive an input voltage (V.sub.in) and produce a regulated output voltage (V.sub.out) and comprises: a current source transistor (M.sub.source) and a current sink transistor (M.sub.sink) arranged to provide the output voltage at a node therebetween; a first error amplifier; and a second error amplifier. The first error amplifier is arranged to apply a first control voltage to the gate terminal of the current source transistor, wherein the first control voltage is dependent on the difference between the feedback voltage (V.sub.fb) and the reference voltage (V.sub.ref). The second error amplifier arranged in parallel to the first error amplifier, the second error amplifier being arranged to apply a second control voltage to the gate terminal of the current sink transistor, wherein the second control voltage is dependent on the difference between the feedback voltage and the reference voltage. The feedback voltage is derived from the output voltage.

Voltage regulator
10649480 · 2020-05-12 · ·

A voltage regulator is arranged to receive an input voltage (V.sub.in) and produce a regulated output voltage (V.sub.out) and comprises: a current source transistor (M.sub.source) and a current sink transistor (M.sub.sink) arranged to provide the output voltage at a node therebetween; a first error amplifier; and a second error amplifier. The first error amplifier is arranged to apply a first control voltage to the gate terminal of the current source transistor, wherein the first control voltage is dependent on the difference between the feedback voltage (V.sub.fb) and the reference voltage (V.sub.ref). The second error amplifier arranged in parallel to the first error amplifier, the second error amplifier being arranged to apply a second control voltage to the gate terminal of the current sink transistor, wherein the second control voltage is dependent on the difference between the feedback voltage and the reference voltage. The feedback voltage is derived from the output voltage.

HYBRID VOLTAGE REGULATOR USING BANDWIDTH SUPPRESSED SERIES REGULATOR AND ASSOCIATED VOLTAGE REGULATING METHOD
20200142436 · 2020-05-07 ·

A voltage regulator provides a load device with a regulated voltage, and includes a first regulator circuit, a second regulator circuit, a first control loop circuit, and a second control loop circuit. The load device and the first regulator circuit are connected in series. The load device and the second regulator circuit are connected in parallel. The first control loop circuit adaptively adjusts a first bias voltage of the first regulator circuit in response to a load condition at the output node of the voltage regulator, wherein the first control loop circuit includes a capacitor coupled between the first power rail and an output node of a feedback amplifier. The second control loop circuit adaptively adjusts a second bias voltage of the second regulator circuit in response to the load condition at the output node of the voltage regulator.

Overvoltage Protection and Linear Regulator Device Module

An apparatus may include a transient voltage suppression (TVS) device array coupled to a first input terminal and a second input terminal; and a linear regulator module having a pair of inputs connected to a respective pair of outputs of the TVS device array, wherein the TVS device array includes at least one TVS diode is connected between a first output and second output of the pair of outputs to generate a first clamping voltage signal, and wherein the linear regulator module is configured to generate a second clamping voltage signal having a second clamping voltage independent of a first clamping voltage of the first clamping voltage signal received from the TVS device array.

Overvoltage Protection and Linear Regulator Device Module

An apparatus may include a transient voltage suppression (TVS) device array coupled to a first input terminal and a second input terminal; and a linear regulator module having a pair of inputs connected to a respective pair of outputs of the TVS device array, wherein the TVS device array includes at least one TVS diode is connected between a first output and second output of the pair of outputs to generate a first clamping voltage signal, and wherein the linear regulator module is configured to generate a second clamping voltage signal having a second clamping voltage independent of a first clamping voltage of the first clamping voltage signal received from the TVS device array.

CONTROL CIRCUIT FOR POWER SWITCH

A circuit for controlling a first plurality of transistors connected in parallel and a second plurality of transistors connected in parallel, includes: a first plurality of stages, a respective one of the first plurality of stages being configured to supply a first control signal to a respective one of the first plurality of transistors; and a second plurality of stages, a respective one of the second plurality of stages being configured to supply a second control signal to a respective one of the second plurality of transistors. An output current of the respective one of the first plurality of stages is regulated based on a difference between a first value representative of a sum of output currents of each stage of the first plurality of stages and a second value representative of a sum of set points assigned to the first plurality of stages.

CONTROL CIRCUIT FOR POWER SWITCH

A circuit for controlling a first plurality of transistors connected in parallel and a second plurality of transistors connected in parallel, includes: a first plurality of stages, a respective one of the first plurality of stages being configured to supply a first control signal to a respective one of the first plurality of transistors; and a second plurality of stages, a respective one of the second plurality of stages being configured to supply a second control signal to a respective one of the second plurality of transistors. An output current of the respective one of the first plurality of stages is regulated based on a difference between a first value representative of a sum of output currents of each stage of the first plurality of stages and a second value representative of a sum of set points assigned to the first plurality of stages.

Real-time slope control apparatus for voltage regulator and operating method thereof
10613566 · 2020-04-07 · ·

A real-time slope control apparatus includes power-train transistors coupled between a power terminal and an output node and turned on in response to an error signal, a voltage regulator, a comparator configured to compare whether the feedback voltage and a sub-reference voltage match each other, pull-up transistors coupled between the power terminal and the output node and sequentially turned on in response to first control signals corresponding to a comparison result value of the comparator, and pull-down transistors coupled between the output node and the ground terminal and sequentially turned on in response to second control signals corresponding to the comparison result value of the comparator.

Real-time slope control apparatus for voltage regulator and operating method thereof
10613566 · 2020-04-07 · ·

A real-time slope control apparatus includes power-train transistors coupled between a power terminal and an output node and turned on in response to an error signal, a voltage regulator, a comparator configured to compare whether the feedback voltage and a sub-reference voltage match each other, pull-up transistors coupled between the power terminal and the output node and sequentially turned on in response to first control signals corresponding to a comparison result value of the comparator, and pull-down transistors coupled between the output node and the ground terminal and sequentially turned on in response to second control signals corresponding to the comparison result value of the comparator.

VOLTAGE REGULATOR
20200081471 · 2020-03-12 · ·

A voltage regulator is arranged to receive an input voltage (V.sub.in) and produce a regulated output voltage (V.sub.out) and comprises: a current source transistor (M.sub.source) and a current sink transistor (M.sub.sink) arranged to provide the output voltage at a node therebetween; a first error amplifier; and a second error amplifier. The first error amplifier is arranged to apply a first control voltage to the gate terminal of the current source transistor, wherein the first control voltage is dependent on the difference between the feedback voltage (V.sub.fb) and the reference voltage (V.sub.ref). The second error amplifier arranged in parallel to the first error amplifier, the second error amplifier being arranged to apply a second control voltage to the gate terminal of the current sink transistor, wherein the second control voltage is dependent on the difference between the feedback voltage and the reference voltage. The feedback voltage is derived from the output voltage.