CN202978719U - A variable-frequency power supply - Google Patents
A variable-frequency power supply Download PDFInfo
- Publication number
- CN202978719U CN202978719U CN 201220602319 CN201220602319U CN202978719U CN 202978719 U CN202978719 U CN 202978719U CN 201220602319 CN201220602319 CN 201220602319 CN 201220602319 U CN201220602319 U CN 201220602319U CN 202978719 U CN202978719 U CN 202978719U
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- frequency
- power supply
- voltage
- variable
- resistor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
The utility model discloses a variable-frequency power supply comprising a crystal oscillator, a frequency divider, a voltage/frequency converting chip, a resistor, and a control board. The variable-frequency power supply is characterized in that generated by the crystal oscillator, frequency is processed by the voltage/frequency converting chip via the frequency divider so that a fundamental wave signal is outputted to the control board. The resistor is disposed at the periphery in order to expand the output frequency range of the power supply to a sine wave from 25 to 2500 Hz. based on the continuous adjustable sine wave output with wide frequency modulation range from 25 to 2500 Hz, a defect of equipment damage caused by voltage spike, voltage transients, undervoltage, overvoltage, and frequency deviation is resolved effectively.
Description
Technical field
The utility model relates to a kind of variable frequency power supply.
Background technology
Power technology especially variable frequency power supply technology is an engineering that practicality is very strong, serves all trades and professions.Power electronic technology is one of best applications technology of electric energy.The subjects such as that current power technology has merged is electric, electronics, the system integration, control theory field.Modern information technologies revolution along with computer and mechanics of communication develop provides vast potential for future development to power electronic technology, also has higher requirement to power supply simultaneously.The generally use in electronic installation along with frequency conversion and inverter, common power can affect the accuracy of whole system in the error that when work produces.Power supply can cause a lot of adverse consequencess in use, and countries in the world have proposed different requirements and formulated a series of Product Precision standard power supply product one after another.Only have the product standard of satisfying, can come into the market.The development that variable frequency power supply is present, main towards higher stability and distortion rate and better dynamic characteristic; Better environmental-protecting performance; Intellectuality and high reliability; The future developments such as application widely.
Summary of the invention
For solving above-mentioned existing shortcoming, main purpose of the present utility model is to provide a kind of variable frequency power supply of practicality, based on the continuously adjustable sinewave output of wide tuning range 252500HZ, effectively solved the shortcoming due to cause damage of equipments such as due to voltage spikes, voltage transient, under voltage, overvoltage, frequency shift (FS)s.
For reaching above-described purpose, a kind of variable frequency power supply of the present utility model is taked following technical scheme:
A kind of variable frequency power supply, comprise crystal oscillator, frequency divider, voltage/frequency conversion chip, resistor and control board, it is characterized in that, after crystal oscillator shakes frequency, process the output fundamental signal to control board by frequency divider through the voltage/frequency conversion chip, resistor is mixed in the periphery, makes the reference frequency output of power supply expand the 25-2500HZ sine wave to.
Adopt as above the utility model of technical scheme, have following beneficial effect:
Based on the continuously adjustable sinewave output of wide tuning range 252500HZ, effectively solved the shortcoming due to cause damage of equipments such as due to voltage spikes, voltage transient, under voltage, overvoltage, frequency shift (FS)s.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
In order to further illustrate the utility model, further describe below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of variable frequency power supply of the present utility model, comprise crystal oscillator, frequency divider, voltage/frequency conversion chip, resistor and control board, it is characterized in that, after crystal oscillator shakes frequency, process the output fundamental signal to control board by frequency divider through the voltage/frequency conversion chip, resistor is mixed in the periphery, makes the reference frequency output of power supply expand the 25-2500HZ sine wave to.
A kind of variable frequency power supply of the present utility model based on the continuously adjustable sinewave output of wide tuning range 25-2500HZ, has solved the shortcoming due to cause damage of equipments such as due to voltage spikes, voltage transient, under voltage, overvoltage, frequency shift (FS)s effectively.
Claims (1)
1. variable frequency power supply, comprise crystal oscillator, frequency divider, voltage/frequency conversion chip, resistor and control board, it is characterized in that, after crystal oscillator shakes frequency, process the output fundamental signal to control board by frequency divider through the voltage/frequency conversion chip, resistor is mixed in the periphery, makes the reference frequency output of power supply expand the 25-2500HZ sine wave to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602319 CN202978719U (en) | 2012-11-13 | 2012-11-13 | A variable-frequency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602319 CN202978719U (en) | 2012-11-13 | 2012-11-13 | A variable-frequency power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978719U true CN202978719U (en) | 2013-06-05 |
Family
ID=48519742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602319 Expired - Fee Related CN202978719U (en) | 2012-11-13 | 2012-11-13 | A variable-frequency power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978719U (en) |
-
2012
- 2012-11-13 CN CN 201220602319 patent/CN202978719U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131113 |