Abstract: Circuits, methods, and systems are provided for setting a current level to be used by a current-mode gate driver. The current level may be used to source, sink, or both source and sink current to/from the gate terminal of a power device. The current level is based upon a current or voltage level input from an analog current-setting terminal. This input current or voltage level may take a value from a continuous range of current or voltage values.

Abstract: A trimming resource includes an adjustable driver resource, a differential voltage generator, and a trim current generator. The adjustable driver resource produces an output signal. The differential voltage generator receives the output signal from the adjustable driver resource and produces a differential drive signal. The trim current generator derives a trim signal from the differential drive signal received from the differential voltage generator. According to one configuration, the trim current generator outputs the trim signal to an electronic component, correcting an operational parameter of the electronic component.

Abstract: Circuits, methods, and systems are provided for setting a current level to be used by a current-mode gate driver. The current level may be used to source, sink, or both source and sink current to/from the gate terminal of a power device. The current level is based upon a current or voltage level input from an analog current-setting terminal. This input current or voltage level may take a value from a continuous range of current or voltage values.

Abstract: Circuits, methods, and systems are provided for setting a current level to be used by a current-mode gate driver. The current level may be used to source, sink, or both source and sink current to/from the gate terminal of a power device. The current level is based upon a current or voltage level input from an analog current-setting terminal. This input current or voltage level may take a value from a continuous range of current or voltage values.

Abstract: Circuits, methods, and systems are provided for setting a current level to be used by a current-mode gate driver. The current level may be used to source, sink, or both source and sink current to/from the gate terminal of a power device. The current level is based upon a current or voltage level input from an analog current-setting terminal. This input current or voltage level may take a value from a continuous range of current or voltage values.

Abstract: Compensation circuits, compensated voltage regulators, and methods are provided for stabilizing voltage regulators, or other circuits that use operational amplifiers, over a wide range of output current. The described techniques provide a zero whose frequency varies linearly with an output current, and which can be used to track and compensate for a pole whose frequency similarly varies with the output current. The variable-frequency zero is created using a compensation capacitor placed in series with a variable resistance, wherein the resistance is configured to vary linearly with the output current. A pole-tracking zero generated in this way may be used to overcome difficulties encountered when the gain of a system includes a pole whose frequency varies with output current, and serves to improve the phase margin of amplifier circuitry, including that used within voltage regulators, and/or serves to ensure stability over a wide range of output current.

Abstract: In some examples, a device includes level-shifter circuitry and biasing circuitry including at least four diodes, wherein each diode of the at least four diodes is electrically connected in series. The biasing circuitry further includes push-pull circuitry electrically connected to at least two diodes of the at least four diodes and configured to generate an intermediate voltage signal. The biasing circuitry is configured to deliver a high-side biasing signal to the level-shifter circuitry based on the intermediate voltage signal and a high-side voltage signal from the at least four diodes. The biasing circuitry is further configured to deliver a low-side biasing signal to the level-shifter circuitry based on the intermediate voltage signal and a low-side voltage signal from the at least four diodes.

Abstract: In some examples, a device includes level-shifter circuitry and biasing circuitry including at least four diodes, wherein each diode of the at least four diodes is electrically connected in series. The biasing circuitry further includes push-pull circuitry electrically connected to at least two diodes of the at least four diodes and configured to generate an intermediate voltage signal. The biasing circuitry is configured to deliver a high-side biasing signal to the level-shifter circuitry based on the intermediate voltage signal and a high-side voltage signal from the at least four diodes. The biasing circuitry is further configured to deliver a low-side biasing signal to the level-shifter circuitry based on the intermediate voltage signal and a low-side voltage signal from the at least four diodes.

Abstract: In some examples, a device includes a power switch, a sensing switch configured to conduct an electrical current based on an electrical current conducted by the power switch. In some examples, the device also includes trimming circuitry configured to generate a monitored electrical current based on an aspect ratio of the trimming circuitry and based on the electrical current conducted by the sensing switch, wherein the aspect ratio of the trimming circuitry is adjustable.

Abstract: A circuit arrangement including a first branch, a second branch and a switching feedback structure is provided. The switching feedback structure may be coupled to the first branch and to the second branch. The switching feedback structure may be configured to adjust a current in the second branch to track a current in the first branch.

Abstract: A tracking current sense system is described that includes a current source and a current control device. The current source alternatively and substantially replicates a first current flowing through a first switch and a second current flowing through a second switch. The current control device configures the current source to alternate between replicating the first current and the second current.

Abstract: A tracking current sensing system is described. The system may include a first electrical sensing element configured to receive a first electrical signal and a second electrical signal from a high side switch of a half-bridge circuit and output an electrical signal based on the received electrical signals. The system may also include a second electrical sensing element configured to receive a first electrical signal and a second electrical signal from a low side switch of the half-bridge circuit and output an electrical signal based on the received electrical signals. The system may further include a current evaluation circuit that is configured to receive the electrical signal output by the first electrical sensing element and the second electrical sensing element, and output a bias output current that is continuous when the half-bridge switches between the high side switch and the low side switch.

Abstract: A tracking current sense system is described that includes a first current tracking system, a second current tracking system, and a pre-biasing device. The first current tracking system is configured to replicate a first current flowing through a first switch and the second current tracking system is configured to replicate a second current flowing through a second switch. The pre-biasing device is configured to pre-bias the second current tracking system based on first information detected at the first current tracking system that is indicative of the first current and also, pre-bias the first current tracking system based on second information detected at the second current tracking system that is indicative of the second current.

Abstract: Representative implementations of devices and techniques provide a speed increase to a comparator circuit. An active clamp device may be positioned between an input stage and an output stage of the comparator, limiting the voltage range of the output of the first stage.

Abstract: A tracking current sensing system is described. The system may include a first electrical sensing element configured to receive a first electrical signal and a second electrical signal from a high side switch of a half-bridge circuit and output an electrical signal based on the received electrical signals. The system may also include a second electrical sensing element configured to receive a first electrical signal and a second electrical signal from a low side switch of the half-bridge circuit and output an electrical signal based on the received electrical signals. The system may further include a current evaluation circuit that is configured to receive the electrical signal output by the first electrical sensing element and the second electrical sensing element, and output a bias output current that is continuous when the half-bridge switches between the high side switch and the low side switch.

Abstract: In general, this disclosure describes linear tracking current sense systems having improved accuracy, bandwidth, and stability. An example device comprises a half bridge comprising a high side switch and a low side switch. The device further comprises a first second gain stage coupled to an operational transconductance amplifier (OTA) and the high side switch, wherein the first second gain stage is configured to sink or supply current to the high side switch from a first non-zero current. The device also comprises a second second gain stage coupled to the OTA and the low side switch, wherein the second second gain stage is configured to sink or supply current to the low side switch from a second non-zero current.

Abstract: A tracking current sense system is described that includes a current source and a current control device. The current source alternatively and substantially replicates a first current flowing through a first switch and a second current flowing through a second switch. The current control device configures the current source to alternate between replicating the first current and the second current.

Abstract: A tracking current sense system is described that includes a first current tracking system, a second current tracking system, and a pre-biasing device. The first current tracking system is configured to replicate a first current flowing through a first switch and the second current tracking system is configured to replicate a second current flowing through a second switch. The pre-biasing device is configured to pre-bias the second current tracking system based on first information detected at the first current tracking system that is indicative of the first current and also, pre-bias the first current tracking system based on second information detected at the second current tracking system that is indicative of the second current.

Abstract: Representative implementations of devices and techniques provide a speed increase to a comparator circuit. An active clamp device may be positioned between an input stage and an output stage of the comparator, limiting the voltage range of the output of the first stage.

Abstract: In general, this disclosure describes linear tracking current sense systems having improved accuracy, bandwidth, and stability. An example device comprises a half bridge comprising a high side switch and a low side switch. The device further comprises a first second gain stage coupled to an operational transconductance amplifier (OTA) and the high side switch, wherein the first second gain stage is configured to sink or supply current to the high side switch from a first non-zero current. The device also comprises a second second gain stage coupled to the OTA and the low side switch, wherein the second second gain stage is configured to sink or supply current to the low side switch from a second non-zero current.