CN1233002A - Voltage stabilizer with set voltage raising and reducing time as well as high voltage, low voltage and overcurrent protection - Google Patents
Voltage stabilizer with set voltage raising and reducing time as well as high voltage, low voltage and overcurrent protection Download PDFInfo
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- CN1233002A CN1233002A CN 98101420 CN98101420A CN1233002A CN 1233002 A CN1233002 A CN 1233002A CN 98101420 CN98101420 CN 98101420 CN 98101420 A CN98101420 A CN 98101420A CN 1233002 A CN1233002 A CN 1233002A
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Abstract
In the voltage stabilizer, the opeerational amplifier circuit obtains the feedback voltage from the step-down transformer. by the operation amplifier circuit as well as precision wire-wound voltage regulator and the solid state relay, are completed precision regulation, voltage raising and reducing time regulation, high and low voltage limitation, protection regulation and output voltage regulation. The voltage stabilizer has over-current monitoring logic circuit to set the percentage load and relay to control voltage output. It has induction contacts and its stator and rotor changes the voltage output according to phase angle through induction.
Description
The present invention relates to a kind of mu balanced circuit device that time and high and low pressure protection excess current are pressed in ascending, descending of setting; be meant especially and a kind ofly protect the output voltage accuracy and have first section high and low pressure limitation function and second section high and low pressure defencive function; and can reduce spoilage and improve utilization rate, not only economy but also practical mu balanced circuit device.
The main body of voltage stabilizer is to adopt electric brush type adjuster (seeing also Fig. 1) at present, and this device has following defective:
1, stabilizator structure is the adjuster of electric brush type, its shortcoming be the brush wear meeting cause can not conduct electricity, failure rate height, life-span be short.
Adjusting function when 2, the printed circuit board (PCB) of voltage stabilizer does not have ascending, descending to press causes accuracy error and motor frequent movement easily.
3, traditional type voltage stabilizer printed circuit board (PCB) does not have high and low pressure restriction, defencive function yet, and is too high or too low if printed circuit board (PCB) fault and human factor transfer to output voltage, all causes device damage easily.
4, the printed circuit board (PCB) of traditional type voltage stabilizer adopts contactor to do the adjustment of ascending, descending pressure, causes the contact fault easily, and traditional type adopts half adjustable voltage adjuster VR, and precision is relatively poor, easy change output valve during as if slight vibrations.
5, excess current adopts thermal relay, and low precision reacts also slower.
The purpose of this invention is to provide a kind of ascending, descending set that can overcome above-mentioned many disadvantages and press the mu balanced circuit device of time and high and low pressure protection excess current.
The present invention is achieved in that it includes:
One no fuse NFB switch can provide overcurrent protection;
One sample circuit, rectification circuit, logical circuit and hummer by relay A, the output of B contact, and have mistake, anti-phase protection and deixis;
One induction type contactless voltage adjuster;
One electromagnetic switch is located at outgoing side, can provide to make dephasing, the protection of reverse, high and low pressure and slow opening apparatus;
One overcurrent monitoring logical circuit, but monitoring load number percent (%) carries out the functions such as protection of circuit;
One motor is alternating current generator;
One regulated power supply system transfers interchange to direct current (AC → DC) obtain direct supply as reference voltage by the transformer rectification;
One feedback circuit;
One operational amplification circuit;
One motor-drive circuit adopts the alternating current general-purpose motor, economy and durability, and do motor positive and inverse with solid-state relay SSR and adjust the ascending, descending pressure;
One manually, automatic transfer switch, when normal the use, be cut in automated location, carry out ascending, descending again and press adjustment and when board failure, be cut in manual position, needn't hinder for some reason and make production line stop;
One time initialization circuit is done the ascending, descending time with operational amplification circuit and resistance, electric capacity and is adjusted;
One high and low pressure observation circuit;
One first section low voltage monitoring circuit;
One second section low voltage monitoring circuit;
One first section high pressure observation circuit;
One second section high pressure observation circuit;
One high-pressure limit observation circuit;
One current transformer; Form Deng member;
It is characterized in that:
This feedback circuit is to obtain feedback voltage with operational amplification circuit elder generation integrated regulator, and adjusts with accurate wire-wound voltage adjuster;
This operational amplification circuit is to get a current potential through rectification, and adjusts output voltage by accurate wire-wound voltage adjuster;
This motor-drive circuit, be that employing solid-state relay SSR is a driving element control alternating current generator, and doing the ascending, descending pressure time with accurate wire-wound voltage adjuster adjusts, and do time ascending, descending adjustment and high and low pressure setting, precision adjustment, output voltage adjustment with resistance, electric capacity RC with time setting circuit, can keep output voltage accurate;
This high and low pressure observation circuit is then done the high and low pressure observation circuit with operational amplification circuit;
This first section low voltage monitoring circuit then compares both current potentials with operational amplification circuit, is benchmark number percent (%) adjustment with accurate wire-wound OV1, and has the low voltage limit function;
This first section high pressure observation circuit then compares both current potentials with operational amplification circuit, adjusts with accurate wire-wound OV1, and has the high-pressure limit function;
This second section low voltage monitoring circuit then compares both current potentials with operational amplification circuit, is benchmark number percent (%) adjustment with accurate wire-wound OV2, and has second section low-voltage variation function;
This second section high pressure observation circuit then compares both current potentials with operational amplification circuit, adjusts with accurate wire-wound OV2, and has second section high voltage protective function;
This high-pressure limit observation circuit then is used for second section high pressure time adjustment;
This overcurrent monitoring logical circuit, but the number percent of monitoring load (%) can be set percentage load (%), promptly export control output voltage and attached indicator signal by A, the B contact of relay when reaching the load set value.
The present invention has following every characteristics:
1, the present invention with operational amplification circuit through the transformer step-down rectifier; obtain the feedback voltage potential value; realize the precision adjustment with operational amplification circuit; the ascending, descending pressure time is adjusted; high and low pressure restriction, protection are adjusted and output voltage is adjusted function, and each function is all adjusted with accurate wire-wound voltage adjuster VR.
2, ascending, descending of the present invention is pressed and is adjusted with solid-state relay SSR control alternating current generator, reaches buck and adjusts function.
3, the present invention has the adjustment of ascending, descending pressure time, makes the output voltage precision more accurate, and has high and low pressure limitation function and defencive function.
4, overcurrent monitoring logical circuit setting percentage load (%) of the present invention, and attached relay A, B contact come control output voltage.
5, voltage stabilizer of the present invention is the induction type contactless, and its stator, rotor induction mode change the magnitude of voltage that changes output according to the phase angle.
Following conjunction with figs. describes in detail as the back:
Fig. 1 is the stabilizator structure stereographic map that adopts the brush adjuster of general traditional electrical;
Fig. 2 is the process flow diagram of the embodiment of the invention.
The figure number explanation:
11 ... there is not molten NFB switch 12 ... induction type contactless voltage adjuster
14 ... electromagnetic switch 15 ... the overcurrent monitoring logical circuit
16 ... regulated power supply system 17 ... feedback circuit
18 ... operational amplification circuit 19 ... motor-drive circuit
20 ... manually, automatic transfer switch 21 ... time setting circuit
22 ... high and low pressure observation circuit 23 ... first section low voltage monitoring circuit
24 ... second section low voltage monitoring circuit 25 ... first section high pressure observation circuit
26 ... second section high pressure observation circuit 27 ... the high-pressure limit observation circuit
28 ... sample circuit 29 ... rectification circuit
30 ... logical circuit 31 ... hummer
32 ... motor 33 ... current transformer
As shown in Figure 2, the present invention is a kind of voltage stabilizing line unit that time and high and low pressure protection excess current are pressed in ascending, descending of setting, and it includes:
One no fuse NFB switch 11 can provide overcurrent protection;
One sample circuit 28, rectification circuit 29, logical circuit 30 and hummer 31 by relay A, the output of B contact, and have mistake, anti-phase protection and deixis;
One induction type contactless voltage adjuster 12;
One electromagnetic switch 14 is located at outgoing side, can provide to make dephasing, the protection of reverse, high and low pressure and slow opening apparatus;
One overcurrent monitoring logical circuit 15, but monitoring load number percent (%) carries out the defencive function of circuit;
One motor 32 is alternating current generator;
One regulated power supply system 16 transfers interchange to direct current (AC → DC) obtain direct supply as reference voltage by the transformer rectification;
One feedback circuit 17;
One operational amplification circuit 18;
One motor-drive circuit 19 adopts the alternating current general-purpose motor, economy and durability, and do motor positive and inverse with solid-state relay SSR and adjust the ascending, descending pressure;
One manually, automatic transfer switch 20, when normal the use, be cut in automated location, carry out ascending, descending again and press adjustment and when board failure, be cut in manual position, needn't hinder for some reason and make production line stop;
One time initialization circuit 21 is done the ascending, descending time with operational amplification circuit and resistance, electric capacity and is adjusted;
One high and low pressure observation circuit 22;
One first section low voltage monitoring circuit 23;
One second section low voltage monitoring circuit 24;
One first section high pressure observation circuit 25;
One second section high pressure observation circuit 26;
One high-pressure limit observation circuit 27;
One current transformer 33; Form Deng member;
It is characterized in that:
This feedback circuit 17 is obtained feedback voltage with the integrated code of operational amplification circuit elder generation's voltage stabilizing, and is adjusted with accurate wire-wound voltage adjuster;
This operational amplification circuit 18 gets a current potential through rectification, and adjusts output voltage by accurate wire-wound voltage adjuster VR;
This motor-drive circuit 19, adopting solid-state relay SSR is driving element control alternating current generator 32, economy is durable again, and doing the ascending, descending pressure time with accurate wire-wound voltage adjuster adjusts, and do with resistance, electric capacity RC that time ascending, descending (UT, DT) is adjusted with time setting circuit 21 and high and low pressure setting, precision adjustment, output voltage adjustment, can keep output voltage accurate;
This high and low pressure observation circuit 22 is done the high and low pressure observation circuit with operational amplification circuit;
This first section low voltage monitoring circuit 23 compares two current potentials with operational amplification circuit, is benchmark number percent (%) adjustment with accurate wire-wound 0V1, and has the low voltage limit function;
This first section high pressure observation circuit 25 compares two current potentials with operational amplification circuit, adjusts with accurate wire-wound OV1, and has the high-pressure limit function;
This second section low voltage monitoring circuit 24 compares two current potentials with operational amplification circuit, is benchmark number percent (%) adjustment with accurate wire-wound OV2, and has second section low-voltage variation function;
This second section high pressure observation circuit 26 compares two current potentials with operational amplification circuit, adjusts with accurate wire-wound OV2, and has second section high voltage protective function;
This high-pressure limit observation circuit 27 is used for second section high pressure time adjustment;
This overcurrent monitoring circuit 15, but the number percent of monitoring load (%) can be set percentage load (%), are promptly exported control output voltage and are had indicator signal by A, the B contact of relay when reaching the load set value.
Therefore, the present invention can conclude and have following enhancement effect:
1, the present invention through the transformer pressure-reducing rectification, obtains the feedback voltage potential value with operational amplification circuit, Carry out the precision adjustment with operational amplification circuit, the ascending, descending pressure time is adjusted, high and low pressure restriction, protection Adjust and output voltage adjustment function, and each function is all adjusted with accurate wire-wound voltage adjuster VR.
2, the present invention has the adjustment of ascending, descending pressure time, makes the output voltage precision more accurate, and the tool height, Low voltage limit function, defencive function.
3, ascending, descending pressure of the present invention adjustment is with solid-state relay SSR control alternating current generator, reaches lifting Press and adjust function.
4, voltage-stablizer of the present invention is the induction type contactless, and its stator, rotor induction mode are according to phase angle Degree changes the magnitude of voltage that changes output.
5, overcurrent monitoring logic circuit of the present invention is set percentage load (%), and attached relay road A, B contact are controlled output voltage.
Claims (1)
- A kind of mu balanced circuit device of setting ascending, descending pressure time and high and low protection excess current, it includes:One no fuse NFB switch can provide overcurrent protection;One sample circuit, rectification circuit, logical circuit and hummer by relay A, the output of B contact, and have mistake, anti-phase protection and deixis;One induction type contactless voltage adjuster;One electromagnetic switch is located at outgoing side, can provide to make dephasing, the protection of reverse, high and low pressure and slow opening apparatus;One overcurrent monitoring logical circuit, but monitoring load number percent (%) carries out the functions such as protection of circuit;One motor is alternating current generator;One regulated power supply system transfers interchange to direct current (AC → DC) obtain direct supply as reference voltage by the transformer rectification;One feedback circuit;One operational amplification circuit;One motor-drive circuit adopts the alternating current general-purpose motor, economy and durability, and do motor positive and inverse with solid-state relay SSR and adjust the ascending, descending pressure;One manually, automatic transfer switch, when normal the use, be cut in automated location, carry out ascending, descending again and press adjustment and when board failure, be cut in manual position, needn't hinder for some reason and make production line stop;One time initialization circuit is done the ascending, descending time with operational amplification circuit and resistance, electric capacity and is adjusted;One high and low pressure observation circuit;One the-section low voltage monitoring circuit;One second section low voltage monitoring circuit;One first section high pressure observation circuit;One second section high pressure observation circuit;One high-pressure limit observation circuit;One current transformer; Form Deng member;It is characterized in that:This feedback circuit is to obtain feedback voltage with operational amplification circuit elder generation integrated regulator, and adjusts with accurate wire-wound voltage adjuster;This operational amplification circuit is to get a current potential through rectification, and adjusts output voltage by accurate wire-wound voltage adjuster;This motor-drive circuit, be that employing solid-state relay SSR is a driving element control alternating current generator, and doing the ascending, descending pressure time with accurate wire-wound voltage adjuster adjusts, and do time ascending, descending adjustment and high and low pressure setting, precision adjustment, output voltage adjustment with resistance, electric capacity RC with time setting circuit, can keep output voltage accurate;This high and low pressure observation circuit is then done the high and low pressure observation circuit with operational amplification circuit;This first section low voltage monitoring circuit then compares both current potentials with operational amplification circuit, is benchmark number percent (%) adjustment with accurate wire-wound OV1, and has the low voltage limit function;This first section high pressure observation circuit then compares both current potentials with operational amplification circuit, adjusts with accurate wire-wound OV1, and has the high-pressure limit function;This second section low voltage monitoring circuit then compares both current potentials with operational amplification circuit, is benchmark number percent (%) adjustment with accurate wire-wound OV2, and has second section low-voltage variation function;This second section high pressure observation circuit then compares both current potentials with operational amplification circuit, adjusts with accurate wire-wound OV2, and has second section high voltage protective function;This high-pressure limit observation circuit then is used for second section high pressure time adjustment;This overcurrent monitoring logical circuit, but the number percent of monitoring load (%) can be set percentage load (%), promptly export control output voltage and attached indicator signal by A, the B contact of relay when reaching the load set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101420 CN1233002A (en) | 1998-04-20 | 1998-04-20 | Voltage stabilizer with set voltage raising and reducing time as well as high voltage, low voltage and overcurrent protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98101420 CN1233002A (en) | 1998-04-20 | 1998-04-20 | Voltage stabilizer with set voltage raising and reducing time as well as high voltage, low voltage and overcurrent protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1233002A true CN1233002A (en) | 1999-10-27 |
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ID=5216683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98101420 Pending CN1233002A (en) | 1998-04-20 | 1998-04-20 | Voltage stabilizer with set voltage raising and reducing time as well as high voltage, low voltage and overcurrent protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1233002A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370688C (en) * | 2005-04-01 | 2008-02-20 | 圆创科技股份有限公司 | Brushless motor driving device |
| CN1913344B (en) * | 2005-06-06 | 2010-06-16 | 阿瓦戈科技Ecbuip(新加坡)股份有限公司 | Methods and apparatus for reducing output current oscillations of a driver |
| CN1920726B (en) * | 2005-08-23 | 2010-11-03 | 崇贸科技股份有限公司 | Switching mode voltage-regulated device with energy-saving circuit and energy-saving control method |
-
1998
- 1998-04-20 CN CN 98101420 patent/CN1233002A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370688C (en) * | 2005-04-01 | 2008-02-20 | 圆创科技股份有限公司 | Brushless motor driving device |
| CN1913344B (en) * | 2005-06-06 | 2010-06-16 | 阿瓦戈科技Ecbuip(新加坡)股份有限公司 | Methods and apparatus for reducing output current oscillations of a driver |
| CN1920726B (en) * | 2005-08-23 | 2010-11-03 | 崇贸科技股份有限公司 | Switching mode voltage-regulated device with energy-saving circuit and energy-saving control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |