Novel liquid-cooling DC/DC power supply
A DC power supply and liquid cooling technology, which is applied in the direction of cooling/ventilation/heating transformation, electrical components, and adjustment of electrical variables, etc., can solve the inconvenience of remote control power supply, real-time monitoring of power supply operating status, and poor consistency of parallel module current sharing , High output voltage of the rectifier circuit, etc., to achieve the effect of low cost, high reliability, and easy switch control
Pending Publication Date: 2017-11-21
ECU ELECTRONICS INDAL
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Problems solved by technology
The output voltage of the rectifier circuit is high, and the output voltage fluctuates with the power grid. The output power of the integrated high-voltage module power supply is limited. Even if the parallel current sharing technology is used, the number of parallel modules is limited, and the consistency of the current sharing degree of the parallel modules is not good, and The whole machine has low efficiency and high cost, and is not suitable for low-voltage and high-current applications
Moreover, the existing power supply generally does not have a software control interface, which is inconvenient for remote control of the power supply switch and real-time monitoring of the operating status of the power supply.
Method used
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[0014] The present invention will be further described below in conjunction with accompanying drawing:
[0015] Such as figure 1 As shown, this embodiment provides a new type of liquid-cooled DC / DC power supply, including a casing 1 and a liquid-cooled plate 2 disposed inside it, two identical power modules, an input overvoltage and undervoltage detection circuit, and a communication display circuit and auxiliary power supply, the power module includes input filter circuit, main power circuit, transformers T1 and T2, rectifier circuit, drive control circuit, output filter circuit, resonant inductor L1, output inductor L2 and L3, and the main power circuit is a phase-shifted full bridge Zero-voltage soft-switching circuits, such as figure 2 As shown, the energy of the internal inductance is used to realize zero-voltage switching (ZVS), thereby improving the efficiency and reliability of the power supply and reducing EMI. At the same time, a clamp circuit is added to the main ...
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The invention relates to a novel liquid-cooling DC / DC power supply. The novel liquid-cooling DC / DC power supply comprises two power supply modules and an auxiliary power supply; each power supply module comprises an input filtering circuit, a main power circuit, a transformer, a rectifying circuit, an output filtering circuit and a driving control circuit; a power grid voltage passes through the input filtering circuit, the main power circuit, the transformer, the rectifying circuit and the output filtering circuit in sequence to be connected with a load; and the driving control circuit collects output voltage and current signals to realize driving control of the main power circuit; the novel power supply also can be provided with a communication display circuit for realizing power supply voltage and current displaying and reporting; and auxiliary power supply supplies a working voltage for the driving control circuit and the communication display circuit. The novel liquid-cooling DC / DC power supply provided by the invention adopts modular design, and two paths of isolation direct current output do not intervene each other; and meanwhile, the power supply adopts a liquid-cooling heat dissipation mode, and is high in reliability, high in efficiency and low in cost and suitable for low-voltage high-current application occasions.
Description
technical field [0001] The invention relates to the field of switching power supplies, in particular to a novel liquid-cooled DC / DC power supply. Background technique [0002] With the development of switching power supply, the output power of the power supply is getting higher and higher. After the DC / DC power supply is used in the rectification circuit, the front stage generally chooses a three-phase rectification circuit. Therefore, the application range of high-power DC / DC power supply with high voltage input is getting more and more wide. The output voltage of the rectifier circuit is high, and the output voltage fluctuates with the power grid. The output power of the integrated high-voltage module power supply is limited. Even if the parallel current sharing technology is used, the number of parallel modules is limited, and the consistency of the current sharing degree of the parallel modules is not good, and The whole machine has low efficiency and high cost, and is ...
Claims
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IPC IPC(8): H02M3/335H05K7/20
CPCH02M3/33592H05K7/20927
Inventor 胡方陈亚东赵艳吴鹏飞刘洋
Owner ECU ELECTRONICS INDAL