Intel Corporation

Lantiq Deutschland Gmbh

Intel Deutschland Gmbh

David Herbison

Holger Wenske

Stephan Henzler

Armin Hanneberg

Thomas Eichler

Marc Hesener

Christoph Schwarzer

Tobias Werth

Yifan Wang

Mario Träber

Stefan Guenther

Thomas Piorek

Mark Hesener

Emil Neborovski

Various embodiments provide a direct current (DC)-DC converter circuit. The DC-DC converter circuit includes a control circuit to switch the DC-DC converter circuit between a charge state, a discharge state, and a tri-state mode. As part of a first control loop, the control circuit may switch the DC-DC converter between the charge state and the discharge state based on the output voltage to provide the output voltage with the target voltage level. Additionally, as part of a second control loop, the control circuit may switch the DC-DC converter between the charge state and the discharge state based on the current through an inductor of the DC-DC converter. The second control loop may provide overcurrent protection for the DC-DC converter. Other embodiments may be described and claimed.

Voltage- and current-based control of direct current (DC)-DC converter

Systems, methods, and circuitries for regulating voltage supplied to a power amplifier are disclosed. In one example, a buck-boost control system is configured to control a buck-boost converter to operate in either a buck mode or a boost mode. The system includes compensator circuitry configured to determine a target current based on a difference between a target voltage and a regulated output voltage of the buck-boost converter and determine a tolerance current that, with the target current, defines a range of expected coil current for the present operating mode. Based on the difference between the target voltage and the regulated output voltage, a charge control signal or a discharge control signal is generated for the converter to cause the coil current to approach the target current. Mode control circuitry is configured to switch the buck-boost converter to the other operating mode when the coil current reaches the tolerance current.

Voltage regulator control systems and methods

Described is an apparatus which comprises: a plurality of bridges which are operable to drive respective signals for one or more power supply rails; a plurality of controllers; and a main controller to couple one or more controllers from the plurality of controllers to one or more bridges from the plurality of bridges.

Integrated circuit (IC) with reconfigurable digital voltage regulator fabric

A digitally controlled buck boost regulator includes an H-bridge circuit including a plurality of switches configured to receive an input voltage signal and generate an output voltage signal based on the input voltage signal and switching signals provided thereto. A controller generates a pulse width modulation (PWM) control value in response to a value of the output voltage signal, and a quantizer/mapper receives the PWM control value and provides a first mapping to a mapped PWM control value if the PWM control value is outside a predetermined range of PWM control values, and generates a second mapping to a mapped PWM control value if the PWM control value is within the predetermined range. A digital pulse width modulator is configured to generate switching signals based on the mapped PWM control value, and provide the generated switching signals to the H-bridge circuit.

Digitally controlled buck-boost regulator having a custom mapping controller

In an embodiment, a circuit is disclosed comprising a circuit portion coupled to a terminal and a calibration circuit portion coupled to said terminal.

Circuit with calibration circuit portion

An integrated circuit includes an output terminal to be coupled to a light-emitting diode, an output circuit coupled to the output terminal, the output circuit being configured to supply an operating signal to the light-emitting diode, a measuring circuit coupled to the output terminal and a control circuit coupled to the measuring circuit. The measuring circuit is configured to sense on the output terminal a signal value outside an operating regime of the light-emitting diode, the signal value being a voltage below a forward voltage of the light-emitting diode or a current below a threshold current of the light-emitting diode. The control circuit is configured to configure at least one function of the integrated circuit when the signal value as sensed by the measuring circuit corresponds to a voltage below the forward voltage of the light-emitting diode or a current below the threshold current of the light-emitting diode.

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Munich, Germany

David Herbison