CN101071988A - Power-supply supplying device with anti-electrophoresis function - Google Patents
Power-supply supplying device with anti-electrophoresis function Download PDFInfo
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- CN101071988A CN101071988A CN 200610077892 CN200610077892A CN101071988A CN 101071988 A CN101071988 A CN 101071988A CN 200610077892 CN200610077892 CN 200610077892 CN 200610077892 A CN200610077892 A CN 200610077892A CN 101071988 A CN101071988 A CN 101071988A
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Abstract
The power supply device includes parts: receiving AC power supply, the rectifier is in use for carrying out rectification; arc current detector is in use for detecting over current from rectified voltage; band-pass filter is in use for carrying out band-pass filter process for the over current as well as outputting processed result; receiving the processed voltage, the arc pulse charger/discharger (APCD) uses arc pulse to carry out charging/discharging operations and to output stable voltage; the arc pulse integrator (API) integrates voltage output from APCD, and outputs the integrated result; SCR driving voltage shaper carries out wave shaping for the voltage from API, and outputs SCR driving signal; using the SCR driving signal, SCR drives and controls signal for switching off power supply; SCR drives and cuts off the relay of inputting AC supply; when over voltage occurs at rectified voltage, the protector controls over voltage and outputs stable drive voltage from APCD and API.
Description
Technical field
The present invention is the technology of relevant power supply device, especially the AC power of outside supply is carried out rectification and when exporting, as long as detect overvoltage, just can cut off the AC power supply, with the power supply device with anti-electrophoresis function of control surge voltage.
Background technology
Usually, inverted rectifier is that AC power is transformed into high efficiency direct current power, and can be transformed into the translation circuit of frequency and voltage at conversion process.
This inverted rectifier needing to be widely used in the industry of control torque (torque) with in the high power capacity household electrical appliance instruments such as instrument or air-conditioning.
For with AC power conversion DC power supply, adopt the simple diode bridge circuit of circuit structure, and, adopt big capacity smoothing capacitor for removing the ripple voltage after the rectification.
One of many applications of this inverted rectifier are multi-axis robots, are used to drive the engine of multi-axis robot on each.Multi-axis robot is formed by a plurality of just as its title, has the inverted rectifier of engine and control engine on each.
In addition, be stable utilization inverted rectifier, need can protect the protective device of inverted rectifier from the influence of overvoltage etc., but protective device, promptly meritorious power module normally is located at the power input end portion of inverted rectifier in addition.
But the power supply device of the protection surge voltage of existing inverted rectifier; adopt two rectifiers; form by framework ground and AC Hot or Neu circuit and closed circuit; owing to rheostat (varistor) is located between the power supply and ground of relay for the control overcurrent; so the control of surge current can't be carried out smoothly; and aspect product structure, the number of fitting parts increase becomes the reason that cost of goods manufactured improves.
Summary of the invention
The present invention aims to provide to addressing the above problem, and does not adopt framework ground and adopt rheostat on the AC two ends, the power supply device of oversimplifying with the circuit structure that can control surge and overcurrent with anti-electrophoresis function.
Description of drawings
Fig. 1 is the power supply device modular structure figure with anti-electrophoresis function of one of relevant embodiment of the invention.
Fig. 2 is the detailed circuit diagram of Fig. 1 of the relevant embodiment of the invention.
The symbol description of＜accompanying drawing major part 〉
10: arc current detector 12: band pass filter
14: voltage amplifier 16: the electric arc pulse charges and discharge electrical equipment
18: electric arc pip integrator 20:SCR driving voltage reshaper
22:SCR 24: relay
26: rectifier 28: overvoltage protection device
30: Test Switchboard
Embodiment
For achieving the above object, the power supply device that has anti-electrophoresis function among the present invention is made up of following structure: promptly, accept AC power and carry out the rectifier that rectification is handled; Arc current detector from the commutating voltage detection of excessive current of above-mentioned rectifier; To carry out bandpass filtering treatment by the overcurrent that above-mentioned arc current detector detects, and the band pass filter of output; Accept the voltage of Filtering Processing from above-mentioned band pass filter, the electric arc pulse is discharged and recharged, and the electric arc pulse of output burning voltage charges and discharge electrical equipment; To carry out integration by the voltage that above-mentioned electric arc pulse charges and discharge electrical equipment output, and the electric arc pip integrator of output; Carry out waveform shaping from the voltage of above-mentioned electric arc pip integrator integration, and the SCR driving voltage reshaper of output-scr drive signal; By the SCR drive of above-mentioned SCR driving voltage reshaper output, and out-put supply cuts off the SCR of control signal; By the driving of above-mentioned SCR, cut off the relay of above-mentioned input ac power; During from the commutating voltage generation overvoltage of above-mentioned rectifier, controlled and charged and discharged the overvoltage protection device of the stable driving voltage of electrical equipment and the output of electric arc pip integrator by above-mentioned electric arc pulse.
In said structure, also should comprise being connected on the SCR driving voltage reshaper, and as detecting the Test Switchboard that whether normally moves.
Below with reference to accompanying drawings correct embodiment of the present invention is elaborated.
Relevant known function of the present invention or structure are being specifically described, in the time of can influencing aim of the present invention, will omitting detailed description thereof.
Fig. 1 is about in embodiments of the present invention, has the power supply device modular structure figure of anti-electrophoresis function.
The power supply device that has anti-electrophoresis function among the present invention has following design feature: promptly, accept AC power (AC power supplies) and carry out the rectifier (26) that rectification is handled; Arc current detector (ZCT) (10) from the commutating voltage detection of excessive current of above-mentioned rectifier (26); To carry out bandpass filtering treatment by the overcurrent that above-mentioned arc current detector (10) detects, and the band pass filter (12) of output; The voltage of accepting Filtering Processing from above-mentioned band pass filter (12) is carried out amplification handle, and with the voltage amplifier (14) of the rank output set; Acceptance is carried out the voltage that amplification is handled from above-mentioned voltage amplifier (14), and carries out the electric arc pulse and discharge and recharge processing, charges and discharge electrical equipment (16) with the electric arc pulse of output burning voltage; To carry out integration by the voltage that above-mentioned electric arc pulse charges and discharge electrical equipment (16) output, and the electric arc pip integrator (18) of output; Carry out waveform shaping from the voltage of above-mentioned electric arc pip integrator (18) integration, and the SCR driving voltage reshaper (20) of output-scr drive signal; By the SCR drive of above-mentioned SCR driving voltage reshaper (20) output, and out-put supply cuts off the SCR (22) of control signal; By the driving of above-mentioned SCR (22), cut off the relay (24) of above-mentioned input ac power; During from the commutating voltage generation overvoltage of above-mentioned rectifier (26), controlled and charged and discharged the overvoltage protection device (28) of the stable driving voltage of electrical equipment and the output of electric arc pip integrator by above-mentioned electric arc pulse.
Fig. 2 is the detailed circuit diagram to Fig. 1 in the embodiment of the invention.
Arc current detector (10) is made of zero current transducer (ZCT) and resistance (R4), diode (D9, D10), and links to each other with rectifier (6).
Band pass filter (12) is made of resistance (R6-R7), Zener diode (ZD1) capacitor (C5, C6), and links to each other with arc current detector (10).
Voltage amplifier (14) by the amplifier that adds (OP1～OP2). resistance (R9～R15), capacitor (C7～C8) constitute, and linking to each other with band pass filter (12).
The electric arc pulse charges and discharge electrical equipment (16) by diode (D7), the amplifier that adds (OP3), resistance (R16～R20) constitute, and linking to each other with voltage amplifier (14).
(R21～R24), diode (D8), capacitor (C10), the amplifier that adds (OP4) constitute electric arc pip integrator (18), and charge and discharge electrical equipment (16) with the electric arc pulse and link to each other by resistance.
(R25～R27), capacitor (C11) constitute SCR driving voltage reshaper (20), and link to each other with electric arc pip integrator (18) by resistance.
Rectifier (26) is by rheostat (MOV2), diode (D1～D4), capacitor (C1), resistance (R1～R2) constitute.
(R28～R30), capacitor (C4), transistor (Q4), Zener diode (ZD2), diode (D5) constitute overvoltage protection device (28) by rheostat (MOV3), capacitor (C13), resistance.
With reference to Fig. 1 and Fig. 2 the running of correct embodiment among the present invention is elaborated below.
Behind input ac power (AC power supplies), the switch (S1) by relay (24) is fed in the rectifier (26).(D1～D4), AC power is carried out rectification handle outputs to the AC power supplies output to rectifier (26) then, is supplied to load by diode.The voltage that carries out the rectification processing by above-mentioned rectifier (26) will be supplied in the overvoltage protection device (28); and overvoltage protection device (28) is when commutating voltage generation overvoltage; then by Zener diode (ZD2) and transistor (Q4); all the time guarantee to export electrostatic pressure, this electrostatic pressure will be supplied to the electric arc pulse again and charge and discharge in electrical equipment (16), the electric arc pip integrator (18).
Carrying out voltage that rectification handles by above-mentioned rectifier (26) when the AC output export,, detecting voltage on the resistance (R4) with this if the generation overcurrent will form the magnetic flux of electric current in the zero current transducer (ZCT).By the detected voltage of above-mentioned resistance (R4), will be by (band pass filter (12) that R6～R8), Zener diode (ZD1), capacitor (C5) constitute carries out bandpass filtering treatment and outwards output by resistance.
Carry out the voltage of Filtering Processing by above-mentioned band pass filter (12), will be by (amplifier that R9～R10), the amplifier that adds (OP1) constitute carries out 1 amplification to be handled by resistance, and the voltage that carries out 1 amplification processing by the above-mentioned amplifier that adds (OP1), will be by resistance (R11～R15), capacitor (C7, C8), the amplifier that adds (OP2), carry out that 2 amplification are handled and outwards output.
Carrying out voltage that 2 amplification handles by the above-mentioned amplifier that adds (OP2) will be supplied to the electric arc pulse and charge and discharge in the electrical equipment (16), and by (the electric arc pulse that R16～R20), capacitor (C9), diode (D7), the amplifier that adds (OP3) constitute charges and discharge electrical equipment (16) by resistance, discharge and recharge processing repeatedly, to export stable voltage.
Voltage by the above-mentioned amplifier that adds (OP3) output, again will be by (the electric arc pip integrator (18) that R21～R2-4), capacitor (C10), diode (D8), the amplifier that adds (OP4) constitute carries out integral processing, and is supplied in the SCR driving voltage reshaper (20) by resistance.(R25～R26), capacitor (C11) constitute SCR driving voltage reshaper (20), and it will carry out waveform shaping to the voltage that is carried out integral processing by electric arc pip integrator (18) and handle, and be supplied among the SCR (22), to open SCR (22) by resistance.
After above-mentioned SCR (22) opens, will be the coil (L1) of relay (24) on through overcurrent, and the switch (S1) of closed relay (24), to cut off the AC power of importing from the outside.
In view of the above, when on by the voltage of rectifier (26) rectification output overvoltage taking place, the supply of effectively cutting off the electricity supply is with the control surge voltage.
Whether normally the Test Switchboard that is not elaborated (30) is used for detecting operation.
As mentioned above; by the present invention; can be when utilizing inverted rectifier supply operation power supply, detection of excessive current, the supply of cutting off the electricity supply; avoid the influence of overvoltage or surge voltage with protective circuit; and,, pass through rheostat then through the diode of 2 rectifications at the AC power two ends of 1 input employing rheostat; detect the overcurrent of rectifier power source, realize simplifying the purpose of circuit then.
Claims (2)
1. the power supply device that has anti-electrophoresis function among the present invention should be made up of following structure: promptly, accept AC power and carry out the rectifier that rectification is handled; Arc current detector from the commutating voltage detection of excessive current of above-mentioned rectifier; To carry out bandpass filtering treatment by the overcurrent that above-mentioned arc current detector detects, and the band pass filter of output; Accept the voltage of Filtering Processing from above-mentioned band pass filter, the electric arc pulse is discharged and recharged, and the electric arc pulse of output burning voltage charges and discharge electrical equipment; To carry out integration by the voltage that above-mentioned electric arc pulse charges and discharge electrical equipment output, and the electric arc pip integrator of output; Carry out waveform shaping from the voltage of above-mentioned electric arc pip integrator integration, and the SCR driving voltage reshaper of output-scr drive signal; By the SCR drive of above-mentioned SCR driving voltage reshaper output, and out-put supply cuts off the SCR of control signal; By the driving of above-mentioned SCR, cut off the relay of above-mentioned input ac power; During from the commutating voltage generation overvoltage of above-mentioned rectifier, controlled and charged and discharged the overvoltage protection device of the stable driving voltage of electrical equipment and the output of electric arc pip integrator by above-mentioned electric arc pulse.
2. on the basis of claim 1, the power supply device that has anti-electrophoresis function among the present invention also should comprise and being connected on the SCR driving voltage reshaper, whether normally to be used to detect the Test Switchboard of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610077892 CN101071988A (en) | 2006-05-10 | 2006-05-10 | Power-supply supplying device with anti-electrophoresis function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610077892 CN101071988A (en) | 2006-05-10 | 2006-05-10 | Power-supply supplying device with anti-electrophoresis function |
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| Publication Number | Publication Date |
|---|---|
| CN101071988A true CN101071988A (en) | 2007-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610077892 Pending CN101071988A (en) | 2006-05-10 | 2006-05-10 | Power-supply supplying device with anti-electrophoresis function |
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| CN (1) | CN101071988A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582580B (en) * | 2009-06-09 | 2011-03-02 | 广州金升阳科技有限公司 | Input/output over-voltage protection circuit |
-
2006
- 2006-05-10 CN CN 200610077892 patent/CN101071988A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582580B (en) * | 2009-06-09 | 2011-03-02 | 广州金升阳科技有限公司 | Input/output over-voltage protection circuit |
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