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Distributed power supply system with digital power supply manager for providing digital closed loop power control

A technology of power supply system and digital power supply, applied in the direction of output power conversion device, conversion of DC power input to DC power output, electrical components, etc., which can solve the problems of low communication efficiency and high system cost

Inactive Publication Date: 2011-09-28
BEL FUSE MACAO COMML OFFSHORE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Total system cost can be high and communication efficiency can be low due to too many devices in the system

Method used

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  • Distributed power supply system with digital power supply manager for providing digital closed loop power control
  • Distributed power supply system with digital power supply manager for providing digital closed loop power control
  • Distributed power supply system with digital power supply manager for providing digital closed loop power control

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Embodiment Construction

[0043] The present invention provides a digital power manager for controlling and monitoring power blocks in a distributed power supply system. In the following detailed description, like element numbers are used to describe like elements shown in the drawings.

[0044] First refer to figure 1 , in the first stage of the distributed power supply system, the AC input voltage is rectified by an isolated AD / DC converter (shown as AC / DC) 10 and then passed through an isolated DC / DC converter (DC / DC) 12, converting it to a relatively lower voltage rail, the intermediate bus voltage (IBV) (eg 12V) 14. In the second stage, there are multiple non-isolated point-of-load (POL) regulators (POL1-POLn) 16a-16n to convert the intermediate bus voltage 14 to each of the multiple levels required by the electronic system (shown as DC output x). POL regulators 16a-16n are preferably located near the respective loads to meet system performance requirements.

[0045] figure 2 The configurati...

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Abstract

The invention discloses a power supply system, which comprises a digital power supply manager and a plurality of power supply modules, wherein each supply power module is used for supplying power to a corresponding load, and comprises a power supply part of a non-isolated DC / DC (Direct Current-Direct Current) converter, a signal sampling and converting circuit for providing analog voltage signals for representing output voltage, output current, temperature and the like, and a driving circuit for receiving a pulse-width modulation (PWM) signal and driving a switching device; a closed loop voltage control and protection function of each power supply module is integrated into a digital power supply; the digital power supply manager comprises a nonvolatile memory containing a register; the register comprises a digital power supply manager configuration register, a power supply module setting register, a power supply module monitoring register and a user customizing space; and the digital power supply manager is used for compiling and monitoring the operation of each power supply module, and can further comprise a user interface such as an I2C interface for receiving programmable data from a host user system and transmitting monitoring data.

Description

technical field [0001] The present invention relates to the management of distributed power systems, and more particularly to the control and monitoring of arrays of point-of-load regulators or other non-isolated DC-DC converters within a distributed power system. Background technique [0002] With the development of electronic and communication technology, the power supply system becomes more and more complex. As a result, the requirements for the power density and reliability of the power supply system are also getting higher and higher. Often electronic systems require several different relatively low voltage levels, such as 3.3V, 2.5V, 1.8V, 1.2V, etc., and the voltage should be precisely regulated. At the same time, a relatively high current level (eg, 100A) and a high rate of current change (eg, 1000A / μs) are required. It is not a good way to carry high currents to electronic equipment over long distances since the impedance of the lines carrying the high currents te...

Claims

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Application Information

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IPC IPC(8): H02J13/00
CPCH02M3/157H02M2001/008H02J1/082H02M1/008H02J1/08
Inventor 颜佳佳周远平简化军马克·朱特拉斯
Owner BEL FUSE MACAO COMML OFFSHORE
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