CN103580516A - Alternating voltage input control circuit - Google Patents
Alternating voltage input control circuit Download PDFInfo
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- CN103580516A CN103580516A CN201310471023.6A CN201310471023A CN103580516A CN 103580516 A CN103580516 A CN 103580516A CN 201310471023 A CN201310471023 A CN 201310471023A CN 103580516 A CN103580516 A CN 103580516A
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Abstract
The invention discloses an alternating voltage input control circuit and belongs to the technical field of power supply control. The alternating voltage input control circuit comprises an input alternating current power supply L pole, an input alternating current power supply N pole, an input voltage detection terminal, a one-time rectifier, a switch relay SK1, a switch audion Q1, a high-low level output device, a resistor R1, a resistor R2, a resistor R3, an electrolytic capacitor EC1, an electrolytic capacitor EC2, an electrolytic capacitor EC3, an absorption fast recovery diode D1, a rectifying diode D2, a rectifying diode D3, a voltage transformation switching circuit and an output interface. According to the alternating voltage input control circuit, one-time and twice alternating voltage input automatic conversion can be achieved, the level of input voltage is automatically detected and the voltage is automatically converted to the voltage transformation switching circuit to provide a work power supply, thus, the output interface outputs smooth and stable supply voltage to electric equipment and conversion of different power supplying demands of different places and different electric equipment is effectively achieved. The energy is effectively shared and waste of the energy is avoided.
Description
Technical field
The present invention relates to a kind of alternating voltage input control circuit, belong to power supply control technology field.
Background technology
At present, on market, the kind of different regions and device power supply (DPS) is more and more, because the service condition of different regions and device power supply (DPS) is different to the power reguirements of power supply, so just need to select different power demands for the concrete service condition of different regions and device power supply (DPS).Like this, also one gush to power supply product that all kinds of different regions and use equipment provides power demands, but in actual use, owing to being the design that the service condition for different regions and device power supply (DPS) provides the power reguirements of power supply to carry out, the power supply product of an equipment provides power supply needs cannot to different regions and different device power supply (DPS)s, U.S.'s (input is 120Vac) particularly, European countries' (input is 230Vac), mining (input is 36Vac) and for well the power supply of equipment (input is 127Vac or 220Vac) can not get common use, sharing of the energy, exist very large inconvenience and waste like this, and rectify and improve and operate very loaded down with trivial details, limited the development of power supply equipment.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of alternating voltage input control circuit, and simplicity of design, easy to operate can be effectively provides different power demands for the different service conditions of different regions and device power supply (DPS).
To achieve these goals, this alternating voltage input control circuit comprises the input ac power L utmost point, the input ac power N utmost point, input voltage test side, rectifier, switch relay SK1, switch triode Q1, low and high level output, resistance R 1, resistance R 2, resistance R 3, electrochemical capacitor EC1, electrochemical capacitor EC2, electrochemical capacitor EC3, absorption fast recovery diode D1, rectifier diode D2, rectifier diode D3, voltage transformation chance-over circuit and an output interface;
Described input voltage test side by resistance R 2 respectively with resistance R 1, resistance R 3 connects, resistance R 1 is connected with the negative pole of rectifier diode D2, the positive pole of rectifier diode D2 respectively with the input ac power N utmost point, one end of rectifier ACN end and relay SK1 connects, the other end of described switch relay SK1 is connected with electrochemical capacitor EC2 with electrochemical capacitor EC1, one end of the induction coil of described switch relay SK1 is connected with the positive pole of absorption fast recovery diode D1 and the collector electrode of switch triode Q1, the base stage of described switch triode Q1 is connected with low and high level output, the other end of the induction coil of described switch relay SK1 and the negative pole that absorbs fast recovery diode D1, the negative pole of the positive pole of electrochemical capacitor EC3 and rectifier diode D3 connects, the positive pole of the positive pole of described rectifier diode D3 and electrochemical capacitor EC1, the vdd terminal of a rectifier is connected with voltage transformation chance-over circuit, the negative pole of described electrochemical capacitor EC3 and voltage transformation chance-over circuit, resistance R 3, the emitter of switch triode Q1, the GND end of the negative pole of electrochemical capacitor EC2 and a rectifier is connected, the ACL end of a described rectifier is connected with the input ac power L utmost point, described voltage transformation chance-over circuit is connected with output interface.
Described switch triode Q1 can be field effect transistor.
Described resistance R 2 is current-limiting resistance.
Compared with prior art, the control circuit of this alternating voltage input control circuit design can be realized single times and input conversion automatically with double alternating voltage, it can detect the height of input voltage automatically, automatically conversion provides working power to voltage transformation chance-over circuit, thereby the stable power supply voltage supplying power consumption equipment of output interface output smoothing is used, simplicity of design, easy to operate, effectively realized the conversion of the different power demands between different regions and different power consumption equipment, effectively realize sharing of the energy, reduced the waste of the energy.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, this alternating voltage input control circuit comprises the input ac power L utmost point, the input ac power N utmost point, input voltage test side, rectifier, switch relay SK1, switch triode Q1, low and high level output, resistance R 1, resistance R 2, resistance R 3, electrochemical capacitor EC1, electrochemical capacitor EC2, electrochemical capacitor EC3, absorption fast recovery diode D1, rectifier diode D2, rectifier diode D3, voltage transformation chance-over circuit and an output interface;
Described input voltage test side by resistance R 2 respectively with resistance R 1, resistance R 3 connects, resistance R 1 is connected with the negative pole of rectifier diode D2, the positive pole of rectifier diode D2 respectively with the input ac power N utmost point, one end of rectifier ACN end and relay SK1 connects, the other end of described switch relay SK1 is connected with electrochemical capacitor EC2 with electrochemical capacitor EC1, one end of the induction coil of described switch relay SK1 is connected with the positive pole of absorption fast recovery diode D1 and the collector electrode of switch triode Q1, the base stage of described switch triode Q1 is connected with low and high level output, the other end of the induction coil of described switch relay SK1 and the negative pole that absorbs fast recovery diode D1, the negative pole of the positive pole of electrochemical capacitor EC3 and rectifier diode D3 connects, the positive pole of the positive pole of described rectifier diode D3 and electrochemical capacitor EC1, the vdd terminal of a rectifier is connected with voltage transformation chance-over circuit, the negative pole of described electrochemical capacitor EC3 and voltage transformation chance-over circuit, resistance R 3, the emitter of switch triode Q1, the GND end of the negative pole of electrochemical capacitor EC2 and a rectifier is connected, the ACL end of a described rectifier is connected with the input ac power L utmost point, described voltage transformation chance-over circuit is connected with output interface.
Described switch triode Q1 can be field effect transistor, the scheme that adopts field effect transistor to replace switch triode Q1 can be dealt with the possible period of want or need, under special circumstances by adopting this alternative can solve some relatively stubborn problems, for example, having switch triode Q1 or switch triode Q1 to change, when changing components and parts, can not adopt field effect transistor as an alternative, very convenient.
Described resistance R 2 is current-limiting resistance, and the restriction input ac power N utmost point is through rectifier diode D2, and the electric current inflow input voltage detection port of carrying out numerical value that dividing potential drop is surveyed by resistance R 1 and resistance R 3 is excessive, thereby protection input voltage detection port is not damaged.
The course of work of this alternating voltage input control circuit is: the input ac power L utmost point and the input ac power N utmost point through rectifier by exchanging while being converted to direct current, the series filtering consisting of electrochemical capacitor EC1 and electrochemical capacitor EC2 is stably for voltage transformation chance-over circuit and output interface provide main power source, the vdd terminal of a rectifier, is added on the induction coil of switch relay SK1 by electrochemical capacitor EC3 filtering by rectifier diode D3, and for switch relay, SK1 provides working power, on the induction coil of switch relay SK1, be added with operating voltage, operating voltage is conducting to while forming work loop through the collector and emitter of switch triode Q1, when the switch conduction of switch relay SK1 connects, the voltage that is the input ac power N utmost point is added in the negative pole of electrochemical capacitor EC1 and the positive pole of electrochemical capacitor EC2, rectifier and electrochemical capacitor EC1 and electrochemical capacitor EC2 start to realize voltage multiplying rectifier, the voltage between the GND of the vdd terminal of a rectifier and rectifier end is the twice of the voltage between the input ac power L utmost point and the input ac power N utmost point, the normal working voltage of output interface is provided while having met the input of voltage transformation chance-over circuit low-voltage, when otherwise the switch of switch relay SK1 disconnects, realize voltage transformation chance-over circuit is played a protective role when high voltage is inputted, to avoid the damage of switch relay SK1, also met the normal working voltage of output interface simultaneously.
When the not conducting of switch of switch relay SK1 connects, the high voltage that moment produces is added in the collector electrode of switch triode Q1 and the voltage of induction coil and carries out periodic duty by the induction coil that absorbs fast recovery diode D1 and feed back to switch relay SK1, thereby switch relay SK1 and switch triode Q1 are played a protective role; The switch conduction of switch relay SK1 connects and disconnects the low and high level output of being inputted by the base stage of switch triode Q1 to be controlled; During the base stage input high level of switch triode Q1, the collector and emitter conducting of switch triode Q1 connects the switch conduction of switch relay SK1; During the base stage input low level of switch triode Q1, the collector and emitter of switch triode Q1 disconnects the switch of switch relay SK1 is disconnected; Low and high level output is by input voltage Numerical Control that test side is surveyed, the numerical value of surveying is through rectifier diode D2, by resistance R 1 and resistance R 3, to carry out dividing potential drop by the input ac power N utmost point, the current-limiting resistance R2 that flows through provides input voltage numerical value that test side is surveyed, voltage transformation chance-over circuit is controlled in low and high level output, when input ac power is too low or too high time normal operation, the stable power supply voltage supplying power consumption equipment of output interface output smoothing is used.
The control circuit of this alternating voltage input control circuit design can be realized single times and input conversion automatically with double alternating voltage, it can detect the height of input voltage automatically, automatically conversion provides working power to voltage transformation chance-over circuit, thereby the stable power supply voltage supplying power consumption equipment of output interface output smoothing is used, simplicity of design, easy to operate, effectively realized the conversion of the different power demands between different regions and different power consumption equipment, effectively realize sharing of the energy, reduced to a certain extent the waste of the energy.
Claims (3)
1. an alternating voltage input control circuit, it is characterized in that, comprise the input ac power L utmost point, the input ac power N utmost point, input voltage test side, rectifier, switch relay SK1, switch triode Q1, low and high level output, resistance R 1, resistance R 2, resistance R 3, electrochemical capacitor EC1, electrochemical capacitor EC2, electrochemical capacitor EC3, absorption fast recovery diode D1, rectifier diode D2, rectifier diode D3, voltage transformation chance-over circuit and an output interface;
Described input voltage test side by resistance R 2 respectively with resistance R 1, resistance R 3 connects, resistance R 1 is connected with the negative pole of rectifier diode D2, the positive pole of rectifier diode D2 respectively with the input ac power N utmost point, one end of rectifier ACN end and relay SK1 connects, the other end of described switch relay SK1 is connected with electrochemical capacitor EC2 with electrochemical capacitor EC1, one end of the induction coil of described switch relay SK1 is connected with the positive pole of absorption fast recovery diode D1 and the collector electrode of switch triode Q1, the base stage of described switch triode Q1 is connected with low and high level output, the other end of the induction coil of described switch relay SK1 and the negative pole that absorbs fast recovery diode D1, the negative pole of the positive pole of electrochemical capacitor EC3 and rectifier diode D3 connects, the positive pole of the positive pole of described rectifier diode D3 and electrochemical capacitor EC1, the vdd terminal of a rectifier is connected with voltage transformation chance-over circuit, the negative pole of described electrochemical capacitor EC3 and voltage transformation chance-over circuit, resistance R 3, the emitter of switch triode Q1, the GND end of the negative pole of electrochemical capacitor EC2 and a rectifier is connected, the ACL end of a described rectifier is connected with the input ac power L utmost point, described voltage transformation chance-over circuit is connected with output interface.
2. a kind of alternating voltage input control circuit according to claim 1, is characterized in that, described switch triode Q1 can be field effect transistor.
3. a kind of alternating voltage input control circuit according to claim 1, is characterized in that, described resistance R 2 is current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310471023.6A CN103580516A (en) | 2013-10-10 | 2013-10-10 | Alternating voltage input control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310471023.6A CN103580516A (en) | 2013-10-10 | 2013-10-10 | Alternating voltage input control circuit |
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| CN103580516A true CN103580516A (en) | 2014-02-12 |
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| CN201310471023.6A Pending CN103580516A (en) | 2013-10-10 | 2013-10-10 | Alternating voltage input control circuit |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945951A (en) * | 2005-08-16 | 2007-04-11 | Lg电子株式会社 | Power control device |
| CN202872676U (en) * | 2012-10-30 | 2013-04-10 | 广东易事特电源股份有限公司 | Pre-stabling control circuit for power frequency linear power supply |
| CN203590067U (en) * | 2013-10-10 | 2014-05-07 | 徐州市恒源电器有限公司 | AC voltage input control circuit |
-
2013
- 2013-10-10 CN CN201310471023.6A patent/CN103580516A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945951A (en) * | 2005-08-16 | 2007-04-11 | Lg电子株式会社 | Power control device |
| CN202872676U (en) * | 2012-10-30 | 2013-04-10 | 广东易事特电源股份有限公司 | Pre-stabling control circuit for power frequency linear power supply |
| CN203590067U (en) * | 2013-10-10 | 2014-05-07 | 徐州市恒源电器有限公司 | AC voltage input control circuit |
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Application publication date: 20140212 |