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a frequency converter

A frequency converter and resistance technology, applied in the field of frequency conversion, can solve the problems of power frequency and voltage influence, life inconvenience, etc., to achieve stable output and ensure the effect of effective application

Active Publication Date: 2018-08-14
啸驰电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Power energy is the main energy source in today's era, and all kinds of equipment are inseparable from power. However, due to the problem of power technology transmission, the power frequency and voltage are affected to a certain extent during the transmission process.
And the working voltage of some electrical appliances in the family is not 220V. Sometimes due to work needs, a higher voltage may be required, which brings inconvenience to people's lives.

Method used

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Embodiment Construction

[0032] The serial numbers of the following components correspond to the Arabic numerals in the drawings. For example, the first resistor corresponds to R1, the first inductor corresponds to L1, and the eighth polarity capacitor corresponds to C8.

[0033]The frequency converter of the present invention includes a power factor correction circuit, a SEPIC buck-boost circuit, a sampling circuit, a PWM generating circuit, a sinusoidal pulse width modulation circuit, a driving circuit, and an inverter circuit. The power factor correction circuit is connected to the SEPIC buck-boost circuit and then connected to the inverter circuit, and the triangular wave generating circuit is connected to the sinusoidal pulse width modulation circuit and then connected to the inverter circuit. The driving circuit, the PWM generating circuit, and the SEPIC buck-boost circuit are interconnected in pairs.

[0034] like figure 1 As shown, the power factor correction circuit adopts UCC28019 chip and...

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Abstract

The invention discloses a frequency converter, which comprises a power factor correction circuit, a SEPIC buck-boost circuit, a sampling circuit, a PWM generation circuit, a sinusoidal pulse width modulation circuit, a driving circuit and an inverter circuit. The invention is suitable for frequency conversion in household frequency conversion and other places, adding a power factor correction module, which can correct the input current waveform to be basically consistent with the voltage waveform, and the phase is the same, which can ensure the effective application of electric power and will not pollute the power grid.

Description

technical field [0001] The invention belongs to the technical field of frequency conversion, and in particular relates to a frequency converter. Background technique [0002] Power energy is the main energy source in today's era, and all kinds of equipment are inseparable from power. However, due to the problem of power technology transmission, the power frequency and voltage are affected to a certain extent during the transmission process. And the working voltage of some electrical appliances in the family is not 220V. Sometimes due to work needs, a higher voltage may be required, which brings inconvenience to people's lives. [0003] If a small-sized frequency converter that can be used for home use can be provided, the above problems will be solved and convenience will be brought to people's lives. Contents of the invention [0004] In order to solve the above problems, the present invention provides a frequency converter, including a power factor correction circuit, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M5/458H02M3/158H02M1/42
CPCH02M1/4208H02M3/158H02M5/458H02M3/1557Y02B70/10
Inventor 王海时李珂姚尧彭映杰袁昊煜马晓光陈娇
Owner 啸驰电气股份有限公司