Method and device for numbering power modules in modular uninterruptible power supply
A power module and numbering device technology, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., can solve the problems of connecting signal cables and input pins.
Active Publication Date: 2011-11-02
INVT POWER SYST SHENZHEN CO LTD +1
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Problems solved by technology
[0005] The disadvantage of this prior art is that it takes up more input pins of the MCU, and when the input pins of the processor are not enough, an external expansion circuit is often required to realize
In addition, if the encoding circuit and the MCU are on different circuit boards, there are more signal cables to be connected.
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[0026] refer to figure 2 , the first embodiment of the power module numbering method in the embodiment of the present invention includes:
[0027] 101. The auxiliary power supplies in each power module respectively output stable voltages;
[0028] The auxiliary power supply on each power module is the same, and the output stable voltage is also the same.
[0029] 102. Adjust the stable voltage in each power module according to the preset voltage regulation scheme, and output the adjusted voltage signal;
[0030] The preset voltage regulation scheme can adjust the stable voltage output by the auxiliary power supply in each power module into different voltage signals;
[0031] 103. Compare the adjusted voltage signal in each power module with a reference voltage signal, and output corresponding pulse signals respectively;
[0032] The reference voltage signal is a regularly changing voltage signal, such as a sine wave, a triangle wave, etc.;
[0033] After the adjusted volt...
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The invention discloses a method for numbering power modules in a modular uninterruptible power supply. The method comprises that: outputting stabilized voltages by using auxiliary power supplies in each power module respectively; regulating the stabilized voltages in each power module according to a preset voltage regulation scheme respectively, and outputting regulated voltage signals, wherein the stabilized voltage output by the auxiliary power supplies in each power module is regulated into different voltage signals by the preset voltage regulation scheme; comparing the regulated voltage signals in each power module with a reference voltage signal, and outputting corresponding pulse signals with different widths respectively; and performing self-numbering according to the widths of own corresponding pulse signals by using each power module. The embodiment of the invention also provides a corresponding numbering device and the modular interruptible power supply. By the technical scheme, the numbering of the power module can be finished only by a path of pulse signals in each power module, so the number of input pins of a microprocessor is decreased.
Description
technical field [0001] The invention relates to the technical field of uninterruptible power supplies, in particular to a method for numbering power modules in a modular uninterruptible power supply, a numbering device and a modular uninterruptible power supply. Background technique [0002] Uninterruptible power supply (UPS, Uninterruptible Power System) is a constant voltage and constant frequency power supply with an energy storage device and an inverter as the main component. It is mainly used to provide uninterrupted power supply to a single computer, computer network system or other power electronic equipment. When the mains input is normal, the UPS will stabilize the mains and supply it to the load. At this time, the UPS is an AC mains voltage stabilizer, and it also charges the battery inside the machine; when the mains is interrupted, such as: an accident When there is a power failure, the UPS will continue to supply 220V AC power to the load through the method of ...
Claims
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IPC IPC(8): H02J7/00
Inventor 杨成林
Owner INVT POWER SYST SHENZHEN CO LTD