Intel Corporation

Anup J Deka

Shobhit Tyagi

Saurabh Kumar Verma

Sudhir Polarouthu

Arvindh Rajasekaran

Kambiz R Munshi

Neha Bhargava

Biranchinath Sahu

A one-shot inductor current scheme which includes a controller to generate a signal to control a high-side switch and a low-side switch such that the high-side switch remains turned on beyond a turn-on time if a voltage level on an output supply rail remains below a reference. The scheme reduces the minimum operating voltage Vmin and/or frequency guard-band of the SoCs (system-on-chips).

Enhanced constant-on-time buck intellectual property apparatus and method

A Ton/2 generator retrofits a digital tracking algorithm to an analog Constant-On-Time (COT) Controller to enable fast sensing. The Ton/2 generation is cognizant of the delay between high-side switch (HSFET) on generation and the actual turn-on time of the HSFET so that there is no deviation of sampling point, and current is reported with high accuracy. The digital tracking algorithm automatically takes higher steps during load transients to enable faster tracking and scales the measured current (Ipeak/2) based on a discontinuous conduction mode (DCM) period for DCM current reporting.

Accurate load current sensing apparatus and method

A fast load current sensing apparatus and scheme provides instantaneous detection of peak current excursions using low silicon area and power efficient techniques. The response time for detecting signal excursions and measuring a signal (e.g., load current) is independent of resolution or precision and can be applied to high resolution telemetry. The apparatus sends out maximum current limit (FHC_limit) code at any instant the load current is detected to be more than a digital-to-analog converter (DAC) code. If the load current is less than the FHC_limit the scheme restores to a next DAC code as per a counter's next value. In case load current is more than FHC_limit, the scheme updates the DAC code to FHC_limit code and starts the counter from the FHC_limit.

Fast response load current sensing apparatus and method

An apparatus is described. The apparatus includes a decision feedback equalizer circuit having a summation circuit. The summation circuit has a differential pair that includes first and second transistors coupled to a current source. The current source is to draw a current through the first and second transistors. The decision feedback circuit also includes a circuit to adjust the current to compensate for a change in electron mobility of at least one transistor of the current source.

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Bengaluru, India

Anup J Deka