CN203070140U - Low-frequency power supply capable of being automatically adaptive to voltage input - Google Patents
Low-frequency power supply capable of being automatically adaptive to voltage input Download PDFInfo
- Publication number
- CN203070140U CN203070140U CN 201220693799 CN201220693799U CN203070140U CN 203070140 U CN203070140 U CN 203070140U CN 201220693799 CN201220693799 CN 201220693799 CN 201220693799 U CN201220693799 U CN 201220693799U CN 203070140 U CN203070140 U CN 203070140U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- power supply
- power frequency
- frequency
- Prior art date
- 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
Links
Images
Abstract
The utility model relates to a low-frequency power supply capable of being automatically adaptive to voltage input. The low-frequency power supply comprises a sampling circuit, a comparing circuit, a control circuit, an electronic switch circuit and a multi-way power frequency linear transformer. The sampling circuit samples the voltage of the power supply. The comparing circuit is connected with the sampling circuit. The control circuit is connected with an output end of the comparing circuit. The control circuit judges the amplitude value of the power supply voltage and power frequency according to comparing signals provided by the comparing circuit and then outputs a control command. The electronic switch circuit is connected at an output end of the control circuit and carries out switching according to the control command output by the control circuit. The multi-way power frequency linear transformer is connected with the electronic switch circuit. The electronic switch circuit switches to an input end of the multi-way power frequency linear transformer which outputs a voltage with corresponding power frequency according to the input end. According to the low-frequency power supply, the power frequency and the amplitude value of the output voltage can be adjusted automatically according to the condition of the input power supply.
Description
Technical field
The utility model relates to a kind of low-frequency power of automatic adapting voltage input.
Background technology
Along with economic development, the country that product is sold to is more and more, yet the difference of various countries' line voltage need design different input modes for power source products.It is especially numerous in variety to be directed to linear power supply, for example, generally use the supply voltage of 220V at home, and in some European and American areas, then use the supply voltage of 110V, therefore, need design different linear power supplies at different input voltages, or realize by hand switch conversion, but when manual switch, if dial the wrong number gear, can damage power supply or load.
Summary of the invention
The utility model provides a kind of low-frequency power of automatic adapting voltage input at the deficiencies in the prior art, and the utility model can be adjusted power frequency and the amplitude of output voltage automatically according to the situation of input power supply.
The utility model is achieved through the following technical solutions:
The low-frequency power of automatic adapting voltage input comprises the sample circuit of gathering supply voltage; And
The comparator circuit that is connected with sample circuit compares and exports comparison signal with sampling voltage and the reference voltage in the comparator circuit of sample circuit; And
Be connected in the control circuit of comparator circuit output terminal, according to the comparison signal that comparator circuit provides, export steering order after the amplitude of judgement supply voltage and the power frequency; And
Be connected in the electronic switching circuit of control circuit output terminal, switch according to the steering order of control circuit output; And
The multichannel power frequency linear transformer that is connected with electronic switching circuit switches to the input end of multichannel power frequency linear transformer according to electronic switching circuit, and this multichannel power frequency linear transformer is exported the voltage of corresponding power frequency according to input end.
Adopted such scheme, in supply voltage when input, sent into comparator circuit after by the voltage sample circuit sampling, comparator circuit carries out voltage ratio, comparison signal is carried out signal identification by control circuit, and control circuit is controlled electronic switching circuit again and is connected the different input end of multichannel power frequency linear transformer.Because multichannel power frequency linear transformer has multi-channel input, when input end (the former limit winding that is transformer uses number of turn difference) not simultaneously, the voltage of multichannel power frequency linear transformer output is inequality, therefore, can export the voltage of different frequency and different amplitudes.Thereby the utility model can be adjusted power frequency and the amplitude of output voltage automatically according to the situation of input power supply.
Further, also comprise a PTC temperature protector, this PTC temperature protector is connected between the input end of supply voltage output terminal and electronic switching circuit.Before electronic switching circuit, connect the PTC temperature protector, utilize the characteristic overload of linear power supply or the principle protection power supply of overvoltage heating, be conducive to prolong power supply serviceable life.
In sum, the utlity model has simple in structure, superior performance, high-level efficiency, safe and reliable advantage.In addition, the utlity model has efficiently automatic voltage input conversion, improved the countries use scope of linear power supply product, on being used in automobile, also be applicable to as fields such as toy power supply, mains lighting supply, pump powers.
Below in conjunction with accompanying drawing and the formula of specifically implementing the utility model is described further.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model;
1 is sample circuit, and 2 is comparator circuit, and 3 is control circuit, and 4 is the PTC temperature protector, and 5 is electronic switching circuit, and 6 is multichannel power frequency linear transformer.
Embodiment
With reference to Fig. 1, the low-frequency power of automatic adapting voltage input of the present utility model comprises the sample circuit 1 of gathering supply voltage; And the comparator circuit 2 that is connected with sample circuit, sampling voltage and the reference voltage in the comparator circuit of sample circuit compared and exports comparison signal; And the control circuit 3 that is connected in the comparator circuit output terminal, according to the comparison signal that comparator circuit provides, export steering order after the amplitude of judgement supply voltage and the power frequency; And the electronic switching circuit 5 that is connected in the control circuit output terminal, switch according to the steering order of control circuit output; And the multichannel power frequency linear transformer 6 that is connected with electronic switching circuit, switching to the input end of multichannel power frequency linear transformer according to electronic switching circuit, this multichannel power frequency linear transformer is exported the voltage of corresponding power frequency according to input end.And a PTC temperature protector 4, this PTC temperature protector is connected between the input end of supply voltage output terminal and electronic switching circuit.
Claims (2)
1. the low-frequency power of automatic adapting voltage input is characterized in that, comprises the sample circuit of gathering supply voltage; And
The comparator circuit that is connected with sample circuit compares and exports comparison signal with sampling voltage and the reference voltage in the comparator circuit of sample circuit; And
Be connected in the control circuit of comparator circuit output terminal, according to the comparison signal that comparator circuit provides, export steering order after the amplitude of judgement supply voltage and the power frequency; And
Be connected in the electronic switching circuit of control circuit output terminal, switch according to the steering order of control circuit output; And
The multichannel power frequency linear transformer that is connected with electronic switching circuit switches to the input end of multichannel power frequency linear transformer according to electronic switching circuit, and this multichannel power frequency linear transformer is exported the voltage of corresponding power frequency according to input end.
2. the low-frequency power of automatic adapting voltage input according to claim 1 is characterized in that also comprise a PTC temperature protector, this PTC temperature protector is connected between the input end of supply voltage output terminal and electronic switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220693799 CN203070140U (en) | 2012-12-16 | 2012-12-16 | Low-frequency power supply capable of being automatically adaptive to voltage input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220693799 CN203070140U (en) | 2012-12-16 | 2012-12-16 | Low-frequency power supply capable of being automatically adaptive to voltage input |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203070140U true CN203070140U (en) | 2013-07-17 |
Family
ID=48768908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220693799 Expired - Fee Related CN203070140U (en) | 2012-12-16 | 2012-12-16 | Low-frequency power supply capable of being automatically adaptive to voltage input |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203070140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216449A (en) * | 2014-09-12 | 2014-12-17 | 成都威邦科技有限公司 | Controllable alternating-current stabilized-voltage power supply |
-
2012
- 2012-12-16 CN CN 201220693799 patent/CN203070140U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216449A (en) * | 2014-09-12 | 2014-12-17 | 成都威邦科技有限公司 | Controllable alternating-current stabilized-voltage power supply |
| CN104216449B (en) * | 2014-09-12 | 2016-01-13 | 国网新疆电力公司博尔塔拉供电公司 | A kind of controllability alternating current steady voltage plug |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105451385A (en) | Cooking device having function of over-current protection | |
| CN109038854B (en) | Automatic tuning wireless energy transmitting system based on inductance compensation | |
| CN202886459U (en) | Digital zero cross detection circuit and household air-conditioner | |
| CN205004842U (en) | Electrical shutoff control device and power cord are led to to intelligence | |
| CN203070140U (en) | Low-frequency power supply capable of being automatically adaptive to voltage input | |
| CN204559247U (en) | Magnetic coupling dual-mode wireless electric energy transmitting device | |
| CN204205959U (en) | A kind of DC-DC power source converter circuit | |
| CN203352132U (en) | Full-automatic over-voltage and under-voltage delay protector | |
| CN204103775U (en) | A kind of practical low frequency frequency changer circuit | |
| CN203218943U (en) | Two-path charger | |
| CN108879999B (en) | Reactance self-adaptive wireless energy transmitting system | |
| CN203242852U (en) | Wireless intelligent socket | |
| CN202888790U (en) | Resettable over/under-voltage protector based on one-chip microcomputer | |
| CN205247145U (en) | High accuracy intelligence power control system | |
| CN202586772U (en) | Switching power supply | |
| CN105606886A (en) | Collection device of electricity consumption information and multiple-electrical-appliance separation recognition method | |
| CN205911550U (en) | WIFI smart jack | |
| CN203289194U (en) | Level raiser of wireless communication-based remote monitoring system of distribution transformer | |
| CN104955222A (en) | LED drive power supply | |
| CN205646335U (en) | Wireless touch power socket controller system | |
| CN204633616U (en) | A kind of charging module of low capacity high-frequency direct-current intelligent power | |
| CN204258446U (en) | A kind of power transmission device | |
| CN205407592U (en) | No -voltage quasi -resonance boost circuit | |
| CN203871590U (en) | Multifunctional socket based on wireless control | |
| CN204349954U (en) | The intelligent switch of a kind of wireless remote control, touch sensible mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20161216 |