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High-power capacitor boost power supply

A booster circuit, capacitor technology, applied in output power conversion devices, DC power input conversion to DC power output, electrical components and other directions, can solve the problems of generating magnetic fields, generating electromagnetic fields, and difficulty in reducing the size of inductance, and achieve broad development. Foreground effect

Inactive Publication Date: 2016-06-08
刘鸿睿
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the inductor is a magnetic field component, it will inevitably generate a magnetic field during work, which is very unfavorable for use in an environment that requires a relatively high magnetic field.
Moreover, due to the limitations of the manufacturing process, it is difficult to reduce the size of the inductor, which makes the switching frequency must reach the level of several hundred kHz, which will cause strong ripples in the output of the power supply, which must be suppressed, and because of the high frequency , will generate an electromagnetic field, and the interference to the circuit cannot be ignored, and must be avoided in some environments with strict requirements
Capacitor boost circuit is not without it, but the existing one is only low-power capacitor boost circuit, which can only be used in small current and high voltage occasions like electric mosquito swatters

Method used

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Embodiment

[0026] according to Figure 6 The parameters in, R1, R3, R5, R7, R9, R11 are all 10Ω resistors, R2, R4, R6, R8, R10, R12 are all 1Ω resistors, C1, C2, C3 are all 0.02μF capacitors, C4, C5 , C6 are 470μF capacitors. Diodes D1, D2, D3, D4, D5, and D6 use 1N5819 diodes; triodes BG1, BG2, BG4, BG6, BG8, BG10, and BG12 all use 9012 triodes, and triodes BG3, BG7, and BG11 use 9013 triodes.

[0027] The frequency of the circuit oscillation is about 2kHz, which is much lower than the 100kHz of the traditional switching power supply, and it does not generate a magnetic field. This can greatly reduce the interference to the following circuit. As for the output capability, the larger the capacitor, the stronger the output capability. When using a 470μF capacitor, the circuit can provide an output capability of 500mA, which is 10W of power. However, the traditional capacitive boost circuit can only provide a current of a few milliamps or tens of milliamperes.

[0028]The characterist...

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Abstract

A high-power capacitor boost power supply relates to an improvement of the switching power supply technology. The invention provides a high-power capacitor boost circuit which can realize high-power boost and does not generate a magnetic field. The high-power capacitor boost power supply comprises an oscillator circuit and a boost circuit, and is characterized in that the oscillator circuit is composed of a first oscillator circuit, a second oscillator circuit and a third oscillator circuit, and the boost circuit is composed of a first boost circuit, a second boost circuit and a third boost circuit; and the first oscillator circuit, the first boost circuit, the second oscillator circuit, the second boost circuit, the third oscillator circuit and the third boost circuit are connected in sequence.

Description

technical field [0001] The present invention relates to the improvement of switching power supply technology. Background technique [0002] Switching power supply is a power supply technology produced in the 1980s, but in recent years, switching power supply has only become popular. It can be said that in the past few decades, the technology of switching power supply has developed relatively maturely. But in all previous switching power supplies, a component must be used, which is an inductor. Since the inductor is a magnetic field component, it will inevitably generate a magnetic field during work, which is very unfavorable for use in an environment that requires a relatively high magnetic field. Moreover, due to the limitations of the manufacturing process, it is difficult to reduce the size of the inductor, which makes the switching frequency must reach the level of several hundred kHz, which will cause strong ripples in the output of the power supply, which must be sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/338
Inventor 刘鸿睿
Owner 刘鸿睿
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