A system and method are provided for generating non-overlapping enable signals. A peak voltage level is measured at an output of a current source that is configured to provide current to a voltage control mechanism. The non-overlapping enable signals are generated for the voltage control mechanism based on the peak voltage level. A system includes the current source, a downstream controller, and the voltage control mechanism that is coupled to the load. The current source is configured to provide current to the voltage control mechanism. The controller is configured to measure the peak voltage level at the output of the current source and generate the non-overlapping enable signals based on the peak voltage level. The non-overlapping enable signals provide a portion of the current to the load.

A system and method are provided for generating non-overlapping enable signals. A peak voltage level is measured at an output of a current source that is configured to provide current to a voltage control mechanism. The non-overlapping enable signals are generated for the voltage control mechanism based on the peak voltage level. A system includes the current source, a downstream controller, and the voltage control mechanism that is coupled to the load. The current source is configured to provide current to the voltage control mechanism. The controller is configured to measure the peak voltage level at the output of the current source and generate the non-overlapping enable signals based on the peak voltage level. The non-overlapping enable signals provide a portion of the current to the load.

New devices and methods for producing a precision current source or sink with programmable slew rate are disclosed. For example, an electronic circuit capable of providing precision current control including a programmable slew rate is disclosed. For example, the electronic circuit can include a constant current circuit configured to provide a constant current, and a transient current circuit coupled to the constant current circuit at a common electrical node, the transient current circuit configured to sample the constant current of the constant current circuit during a sampling phase, then provide a turn-on programmable slew rate based on the sampled constant current during an active phase.

A DC-DC converter includes an inductor, a switch module, a pull-up circuit and a pull-down circuit. The inductor has a first node and a second node, and the second node is coupled to an output node of the DC-DC converter. The switch module is arranged for selectively connecting an input voltage or a ground voltage to the first node of the inductor according to a driving signal. The pull-up circuit is arranged for selectively providing a first current to the output node of the DC-DC converter. The pull-down circuit is arranged for selectively sinking a second current from the output node of the DC-DC converter. In addition, at least one of the first current provided by the pull-up circuit and the second current sunk by the pull-down circuit is determined based on an inductor current flowing through the inductor.

A termination voltage regulation apparatus with transient response enhancement includes a termination voltage regulator and a transient response enhancer. The termination voltage regulator provides a termination voltage at a termination voltage terminal, including first and second switching units. The transient response enhancer, coupled to the termination voltage regulator, is utilized for enhancing transient response of the termination voltage regulator, including a first enhancement circuit for sensing a first signal associated with the first switching unit and enabling a first control terminal of the first switching unit to be at a first voltage in response to the first signal in a sinking mode; and a second enhancement circuit for sensing a second signal associated with the second switching unit and enabling a second control terminal of the second switching unit to be at a second voltage in response to the second signal in a sourcing mode.

Disclosed is a voltage reference buffer circuit including a first, second, third, and fourth bias generators and a first, second, third, and fourth driving components. The first, second, third, and fourth bias generators generate bias voltages to control the first, second, third, and fourth driving components respectively. The first, second, third, and fourth driving components are coupled in sequence, wherein the first and second driving components are different types of transistors and jointly output a first reference voltage, the third and fourth driving components are different types of transistors and jointly output a second reference voltage, and the group of the first and second driving components is separated from the group of the third and fourth driving components by a resistance load.

Disclosed is a voltage reference buffer circuit including a first, second, third, and fourth bias generators and a first, second, third, and fourth driving components. The first, second, third, and fourth bias generators generate bias voltages to control the first, second, third, and fourth driving components respectively. The first, second, third, and fourth driving components are coupled in sequence, wherein the first and second driving components are different types of transistors and jointly output a first reference voltage, the third and fourth driving components are different types of transistors and jointly output a second reference voltage, and the group of the first and second driving components is separated from the group of the third and fourth driving components by a resistance load.

Techniques for efficient operation of a linear stage in an H-bridge system are provided. In an example, a linear stage can switch between voltage regulation and current regulation over a range of a command signal. The particular regulation mode can depend on the regulation mode of a switched stage of the H-bridge system. Efficiency can be realized by using current regulation of the linear stage when the output voltage of the linear stage moves away from the voltage of a supply rail. Such a control scheme can reduce the voltage across the linear stage for a larger range of the command signal resulting in less heat dissipation of the linear stage compared to conventional control of H-bridge linear stages.

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.

A power supply circuitry includes a first transistor, a feedback circuit, a first differential amplifier circuit, a second differential amplifier circuit, and a first control circuit. The first transistor outputs a power supply voltage based on a drive signal. The feedback circuit generates a feedback voltage of the power supply voltage. The first differential amplifier circuit amplifies a difference between the feedback voltage and a reference voltage, and outputs the drive signal. The second differential amplifier circuit amplifies a difference between the reference voltage and the feedback voltage. The first control circuit detects a change in the power supply voltage by using a differentiation circuit and controls the power supply voltage based on an output of the second differential amplifier circuit.