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Current-parking switching regulator upstream controller

A technology of controller and voltage control, which is applied in the direction of adjusting electric variable, control/regulation system, converting DC power input to DC power output, etc. It can solve the problems of equipment not running correctly and current response time increasing

Active Publication Date: 2014-08-13
NVIDIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the synchronization of PWM switching operations will add several microseconds to the current response time of conventional multiphase switching regulators
When the clock period of the device is less than the current response time, the device may not operate correctly

Method used

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  • Current-parking switching regulator upstream controller
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Embodiment Construction

[0024] An electrical power conversion device provides a desired output voltage level to a load, such as a device. Electrical power conversion equipment converts power received from a power source, such as a battery or mains power source, to a supply voltage level that is provided to a load. An inductor is used to deliver additional current to the load and a switching mechanism that modulates the average current through the inductor regulates the output voltage level. A capacitor is coupled between the load and ground to store any excess current (the difference between the current supplied through the inductor and the current delivered to the load).

[0025] Figure 1A An electric power conversion system 100 according to one embodiment is shown comprising an electric power conversion device 120 implemented as a current-parking switching regulator with a single inductor L1. The electric power conversion device 120 may be one phase of a multi-phase switching regulator, such as ...

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Abstract

The invention provides a current-parking switching regulator upstream controller. A system and method are provided for regulating a voltage at a load. A current source is configured to provide a current to a voltage control mechanism and the voltage control mechanism is configured to provide a portion of the current to the load. The current is generated based on the portion of the current that is provided to the load. A system includes the current source, an upstream controller, and the voltage control mechanism that is coupled to the load. The upstream controller is coupled to the current source and is configured to control a current that is generated by the current source based on a portion of the current that is provided to the load.

Description

technical field [0001] This invention relates to regulator circuits. Background technique [0002] Conventional devices such as microprocessors and graphics processors used in high performance digital systems may have varying current requirements based on the workload being processed. For example, current demand may increase significantly when a logic block restarts after a stall or when a new request initiates a large computation such as the generation of a new image. Conversely, current demand may be significantly reduced when a logic block becomes idle. When the current demand increases and there is not enough power, the supply voltage supplied to the device may drop below a critical voltage level, potentially preventing the device from operating properly. When the current demand decreases and the supply voltage supplied to the device rises above a critical voltage level, circuits within the device may not function properly and may even be damaged. [0003] A conventio...

Claims

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Application Information

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IPC IPC(8): H02M3/156H02M1/00
CPCG05F1/10H02M3/1582H02M3/1584H02M1/008
Inventor 威廉·J·达利
Owner NVIDIA CORP
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