CN204179954U - A kind of portable electronic voltage regulator - Google Patents
A kind of portable electronic voltage regulator Download PDFInfo
- Publication number
- CN204179954U CN204179954U CN201420493810.0U CN201420493810U CN204179954U CN 204179954 U CN204179954 U CN 204179954U CN 201420493810 U CN201420493810 U CN 201420493810U CN 204179954 U CN204179954 U CN 204179954U
- Authority
- CN
- China
- Prior art keywords
- circuit
- phase
- voltage
- portable electronic
- regulator
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 23
- 230000033228 biological regulation Effects 0.000 claims abstract description 11
- 230000010355 oscillation Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 27
- 239000003990 capacitor Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- SBWGZAXBCCNRTM-CTHBEMJXSA-N n-methyl-n-[(2s,3r,4r,5r)-2,3,4,5,6-pentahydroxyhexyl]octanamide Chemical compound CCCCCCCC(=O)N(C)C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO SBWGZAXBCCNRTM-CTHBEMJXSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model provides a kind of portable electronic voltage regulator, belongs to the technical field of electric equipment of regulation voltage.Comprise box body and be arranged on openable lid on box body, box body internal fixtion is provided with regulator circuit plate, regulator circuit plate is integrated with the rectification circuit, direct current modulate circuit and the inverter circuit that are sequentially connected in series, direct current modulate circuit comprises pulse oscillation circuit, controlling circuit of voltage regulation and output circuit; At regulator circuit plate covering, man-machine interface plate is housed, man-machine interface plate is arranged three-phase voltage lead-out terminal, three-phase input end, 220V voltage input-terminal, mains switch, communication interface, liquid crystal display screen and button.Employing all electronic device is formed, and greatly reduces the weight of voltage regulator.Directly can be connected with outside single-phase 220V alternating current, two-phase 380V alternating current or three-phase 380V alternating current, automatically adopt two-phase or three-phase full-controlled bridge rectification, without the need to any setting.Be particularly useful for field electric testing operation.
Description
Technical field
The utility model relates to the technical field of electric equipment of regulation voltage, relates in particular to a kind of electronic pressure controller.
Background technology
Voltage regulator is a kind of important electrical in electrical test, and common low capacity voltage regulator many employing contacts pressure regulation form, input coil turn is fixed, and is changed the number of turn of output winding by slip device, reaches the object changing output voltage.The working method of voltage regulator many employings Induction Regulation that capacity is larger, changes primary and secondary coil coupling coefficient by the dynamic winding position of mobile self short circuit, reaches the object of adjustment output voltage.
Traditional voltage regulator is formed primarily of iron core and copper cash, and equipment is heavy, bulky.At present, rated capacity conventional in electrical test is the three-phase contact type voltage regulator of more than 10kVA, and equipment self-weight is about 25kg, carrying inconvenience.In addition, field work scene often exists that power supply is improper causes wiring comparatively complicated situation, and the problems demand of the single-phase/three-phase power safety conversion of device power supply (DPS) solves.
Utility model content
For this reason, technical problem to be solved in the utility model be to exist in the electromagnetic type contact type voltage regulator operation in the wild used at present volume is large, quality large and cause carrying inconvenience problem and because of be applicable to three-phase and quarter-phase circuit during difference and cause the deficiency of wiring complexity, thus a kind of single-phase/three-phase self adaptation portable electronic voltage regulator adopting all electronic device to form is proposed.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of portable electronic voltage regulator, comprise box body and be arranged on openable lid on box body, box body internal fixtion is provided with regulator circuit plate, regulator circuit plate is integrated with the rectification circuit, direct current modulate circuit and the inverter circuit that are sequentially connected in series, direct current modulate circuit comprises pulse oscillation circuit, controlling circuit of voltage regulation and output circuit; At regulator circuit plate covering, man-machine interface plate is housed, man-machine interface plate is arranged three-phase voltage lead-out terminal, three-phase input end, 220V voltage input-terminal, mains switch, communication interface, liquid crystal display screen and button.
As optimization, rectification circuit comprises fuse wire fuse B1, B2, B3, rectifier diode D1-D6, current-limiting inductance L1 and storage capacitor C1, rectifier diode is in parallel in the same way after series aiding connection between two, negative electrode one end after parallel connection is connected with one end of current-limiting inductance L1, and the anode one end after parallel connection is connected to the other end of current-limiting inductance L1 by storage capacitor C1; One end of fuse B1, B2, B3 is connected between the rectifier diode of connecting between two, the other end of fuse B1, B2, B3 is the input of rectification circuit, current-limiting inductance L1 connects the output of one end as rectification circuit of storage capacitor C1, the other end ground connection of storage capacitor C1.
As optimization, the pulse oscillation circuit of direct current modulate circuit comprises vibration major loop, positive feedback loop and starting resistance circuit.
As optimization, vibration major loop comprises the oscillating circuit, switching tube and the switch transformer T901 armature winding L1 that connect successively; Current-limiting resistance R915, divider resistance R913, divider resistance R910 and error amplifying circuit that positive feedback loop comprises feedback winding L 2, connects with feedback winding L 2, after divider resistance R913 and divider resistance R910 connect with by the circuit in parallel feeding back winding L 2 and current-limiting resistance R915 and form, divider resistance R913 is connected with the inverting input of error amplifying circuit with the junction of divider resistance R910; Starting resistance circuit comprises the starting resistance R923 and starting resistance R905 that are connected in series, and starting resistance circuit on one side is connected with the output of rectification circuit, the other end is connected with oscillating circuit.
As optimization, controlling circuit of voltage regulation comprises the sample circuit, error amplifying circuit and the pulse width regulating circuit that connect successively.
As optimization, output circuit comprises the pi type filter that switch transformer T901 level exports winding L 3, rectifier diode D921 and be made up of electric capacity C932, inductance L 901 and electric capacity C936.
As optimization, inverter circuit comprises three-phase bridge type inverse main circuit, for driving the IGBT drive circuit of igbt transistor, for carrying out second order passive filter and the voltage feedback circuit of filtering process to the three-phase alternating current exported.
As optimization, also comprise control circuit, the Three-phase SPWM generating chip that control circuit comprises the first single-chip microcomputer and is connected with the first single-chip microcomputer, the output of Three-phase SPWM generating chip is connected with the IGBT drive circuit of inverter circuit, and the first input end of the first single-chip microcomputer is connected with the voltage feedback circuit of inverter circuit.
As optimization, also comprise man-machine interface circuit, man-machine interface circuit comprises second singlechip, the liquid crystal display screen be connected with second singlechip respectively and button, and man-machine interface circuit output is connected with the second input of the first single-chip microcomputer
As optimization, liquid crystal display screen is arranged on the centre of man-machine interface plate, three-phase voltage lead-out terminal and three-phase input end are arranged on the upper left corner of liquid crystal display screen, and 220V voltage input-terminal, mains switch, communication interface form a line and be arranged on the right side of liquid crystal display screen, and button is arranged on the below of liquid crystal display screen.
Technique scheme of the present utility model has the following advantages compared to existing technology:
The utility model provides a kind of portable electronic voltage regulator adopting all electronic device to form, and greatly reduces the weight of voltage regulator, decreases experiment work human cost.In addition, can directly be connected with outside single-phase 220V alternating current, two-phase 380V alternating current or three-phase 380V alternating current, the input terminal do not needed is unsettled, according to incoming power situation, automatic employing two-phase or three-phase full-controlled bridge rectification, without the need to any setting, also eliminate complicated wiring work, effectively improve operating efficiency.The standard electrical receptacle of existing 220V on panel, has again the three phase mains binding post of 380V, facilitates onsite application.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is a kind of surface structure schematic diagram of the utility model embodiment;
Fig. 2 is a kind of circuit structure block diagram of the utility model embodiment;
Fig. 3 is a kind of rectification circuit figure of the utility model embodiment;
Fig. 4 is a kind of direct current modulate circuit figure of the utility model embodiment;
Fig. 5 is a kind of inverter circuit figure of the utility model embodiment;
Fig. 6 is a kind of control circuit structural representation of the utility model embodiment;
Fig. 7 is a kind of man-machine interface circuit structural representation of the utility model embodiment.
Embodiment
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with drawings and Examples, technical scheme provided by the utility model is described in further detail.
Present embodiments provide a kind of portable electronic voltage regulator, as illustrated in fig. 1 and 2, comprise box body 1 and be arranged on openable lid 2 on box body 1, box body 1 internal fixtion is provided with regulator circuit plate, regulator circuit plate is integrated with the rectification circuit M1, direct current modulate circuit M2 and the inverter circuit M3 that are sequentially connected in series, direct current modulate circuit M2 comprises pulse oscillation circuit M21, controlling circuit of voltage regulation M22 and output circuit M23; At regulator circuit plate covering, man-machine interface plate 4 is housed, man-machine interface plate 4 is arranged three-phase voltage lead-out terminal 41, three-phase input end 42,220V voltage input-terminal 43, mains switch 44, communication interface 45, liquid crystal display screen 46 and button 47.Particularly, on the man-machine interface plate 4 of this enforcement, liquid crystal display screen 46 is arranged on the centre of man-machine interface plate 4, three-phase voltage lead-out terminal 41 and three-phase input end 42 are arranged on the upper left corner of liquid crystal display screen 46,220V voltage input-terminal 43, mains switch 44, communication interface 45 form a line and are arranged on the right side of liquid crystal display screen 46, and button 47 is arranged on the below of liquid crystal display screen 46.
The inner electronic device that all adopts of this portable electronic voltage regulator is formed, more traditional electromagnetic type voltage regulator weight significantly alleviates, can be applicable to that 220V is single-phase in addition simultaneously, the alternating voltage of 380V two-phase and 380V three-phase, can directly connect from different electrical networks during actual use, eliminate complicated wiring, and its output voltage can need manually or the mode accurate adjustment of procedure auto-control according to load.By regulating circuit plate and man-machine interface plate 4 directly design integration in a box, facilitate carrying of field work.
Particularly, as shown in Figure 3, rectification circuit M1 in the present embodiment comprises fuse wire fuse B1, B2, B3, rectifier diode D1-D6, current-limiting inductance L1 and storage capacitor C1, rectifier diode is in parallel in the same way after series aiding connection between two, negative electrode one end after parallel connection is connected with one end of current-limiting inductance L1, and the anode one end after parallel connection is connected to the other end of current-limiting inductance L1 by storage capacitor C1; One end of fuse B1, B2, B3 is connected between the rectifier diode of connecting between two, the other end of fuse B1, B2, B3 is the input of rectification circuit M1, i.e. input Ua, input Ub and input Uc, current-limiting inductance L1 connects the output of one end as rectification circuit of storage capacitor C1, the other end ground connection of storage capacitor C1.Rectification circuit M1 input Ua, Ub, Uc are connected to external power source, after three fuse wire fuses B1, B2, B3, three-phase alternating current is transformed into the direct current of pulsation by the bridge rectifier utilizing 6 rectifier diode D1-D6 to form, after current-limiting inductance L1, charge to storage capacitor C1, complete the conversion of elementary AC-to DC voltage.When Ua and Ub connect alternating current 220V single-phase voltage, Uc unsettled time, the floating voltage of storage capacitor C1 is about 300V; When Ua and Ub connect exchange 380V two phase voltage, Uc unsettled time, the floating voltage of storage capacitor C1 is about 500V; When Ua, Ub, Uc connect interchange 380V three-phase voltage, the floating voltage of storage capacitor C1 is about 500V.
In the present embodiment, the input 21 of direct current modulate circuit M2 is connected with the high-voltage output end 14 of storage capacitor C1 in rectification circuit M1.As shown in Figure 4, the pulse oscillation circuit M21 of direct current modulate circuit M2 comprises vibration major loop, positive feedback loop and starting resistance circuit.
Particularly, vibration major loop comprises the oscillating circuit, switching tube and the switch transformer T901 armature winding L1 that connect successively, and its effect produces the higher-order of oscillation, exports rectangular pulse.Current-limiting resistance R915, divider resistance R913, divider resistance R910 and error amplifying circuit that positive feedback loop comprises feedback winding L 2, connects with feedback winding L 2, after divider resistance R913 and divider resistance R910 connect with by the circuit in parallel feeding back winding L 2 and current-limiting resistance R915 and form, divider resistance R913 is connected with the inverting input of error amplifying circuit with the junction of divider resistance R910, and positive feedback loop produces vibration for vibration major loop and maintains vibration provides condition.Starting resistance circuit comprises the starting resistance R923 and starting resistance R905 that are connected in series, starting resistance circuit on one side is connected with the output of rectification circuit M1, the other end is connected with oscillating circuit, for the base stage of switching tube provides bias current when the effect of starting resistance circuit is start, trigger switch pipe starts conducting, switching tube, once after starting, is maintained the vibration of switching tube by positive feedback loop.After power supply is connected, starting resistance R923 and starting resistance R905 provides initial operating voltage for oscillating circuit, makes oscillating circuit start vibration.What switching tube adopted is field effect transistor, has the feature of high output impedance.Its drain electrode meets the armature winding L1 of switch transformer T901, source ground, and grid receives the driving stage of oscillating circuit by internal delay time circuit.Start working after switching tube obtains switching pulse, the direct current on armature winding L1 is converted to rectangular pulse.Simultaneously, due to the mutual inductance of coil, the feedback winding L 2 of switch transformer T901 can produce an induced voltage anti-phase with armature winding L1, wherein a road is through diode D908, the power supply such as error amplifying circuit and pulse width regulating circuit is given after electric capacity C912 rectifying and wave-filtering, application condition circuit is sent into through divider resistance R913 and the sampling of divider resistance R910 dividing potential drop in another road, show that error voltage carries out FEEDBACK CONTROL to oscillator, adjustment exports the width of pulse, the ON time of switching tube can be changed, the operating state of Circuit tuning, thus make circuit be in steady-working state.
In the present embodiment, as long as the ON time of control switch pipe, just can adjust the height of output voltage.The time of switching tube conducting is longer, and output voltage is higher, otherwise then low.Controlling circuit of voltage regulation M22 comprises the sample circuit, error amplifying circuit and the pulse width regulating circuit that connect successively.Resistance R931, R932, R934 form voltage sample circuit.IC905 and PC903 forms voltage comparator circuit, and wherein IC905 is that voltage stabilizing becomes block, and it has 3 terminals, the 1. pin ground connection, the 2. pin be voltage input end, built-in reference voltage, the 3. pin be adjustment end.PC903 is photoelectrical coupler, and when 1. 2. the electric current of pin increases, the electric current 3. 4. held also can increase thereupon, plays the effect of error amplification and electrical isolation.The signal detected sends into error amplifying circuit and pulse width regulating circuit, and the duty ratio of paired pulses adjusts, thus reaches the object of adjustment and regulated output voltage.When the output voltage of output 22 rises, the voltage at sample resistance R934 two ends also can rise thereupon, IC905 2. pin voltage also can rise, and the voltage of of IC905 the 3. pin and 2. pin is inversely proportional to, so 3. pin voltage reduction, cause PC903 1. 2. pin On current increase, photo-electric control PC903 3. 4. pin electric current also increase, then the in-phase input end of internal error amplifier is sent into, after amplifying, control oscillating circuit pulse-width adjust, pulse duration is narrowed, thus shorten the ON time of switching tube, suppress the rising of output voltage.Material is thus formed the control loop of a monitoring in real time, the direct voltage exporting high stability can be guaranteed.
Particularly, output circuit M23 comprises the rectifier diode D921 that switch transformer T901 level exports winding L 3 and formation halfwave rectifier.Optimally, also comprise the pi type filter be made up of electric capacity C932, inductance L 901 and electric capacity C936, the high-frequency impulse that high-frequency rectification exports can be become level and smooth direct current, owing to being to High frequency filter, so the value of filtering components and parts and volume are all smaller, the volume and weight of voltage regulator can not be increased.Switching tube is saturated between the off period exiting, and the Same Name of Ends of the secondary winding L3 of switch transformer T901 will become positive potential, make rectifier diode D921 forward conduction.The magnetic energy that armature winding L1 stores starts to be converted to electric energy and powers to the load, and charges to C932 simultaneously.And during switching tube saturation conduction, the induced voltage of secondary winding L3 makes D921 end, now electric capacity C932 starts electric discharge, powers to the load by the energy accumulated, and this process is also the process of armature winding L1 storage power again.
When power supply or load can cause electric current to surge because of certain reason damage, for preventing overheated switching tube, switch transformer T901 or other electronic devices and components of burning out from causing product safety accident, thus be provided with relevant protective circuit at power source internal circuit.Protective circuit mainly contains overcurrent protection and overload protection two kinds.Above-mentioned divider resistance R913 and divider resistance R910 is also negative feedback overflow protecting element simultaneously, when output overload or short circuit, the armature winding L1 electric current of switch transformer T901 can increase, correspondingly, the electric current of feedback winding L 2 also can increase thereupon, thus cause the voltage rise on divider resistance R910, the inverting input of OCP voltage comparator integrated in input circuit compares, if input voltage exceedes the reference voltage of setting, then voltage comparator upset, again by the cut-off of OLP voltage comparator level upset control switch pipe, direct current modulate circuit M2 is quit work.
In addition, be also provided with separately one group of overload protecting circuit, PC903 is the voltage sampling device of output, and switch triode Q902, Q903 play switch control rule effect.Specific works process is as follows: when output underload, open circuit or because of certain reason voltage rise time, voltage stabilizing didoe D933 both end voltage raises reverse breakdown and makes PC903 1. 2. pin voltage rise, 3. 4. pin impedance diminishes simultaneously, electric current increases, thus make Q902 positively biased saturation conduction, then through resistance R920, the upset of voltage stabilizing didoe D913 flow-limiting voltage-stabilizing control OLP voltage comparator level, switching tube ends, and direct current modulate circuit M2 is quit work.
As shown in Figure 5, the inverter circuit M3 in the present embodiment comprises three-phase bridge type inverse main circuit, for driving the IGBT drive circuit of igbt transistor, for carrying out second order passive filter and the voltage feedback circuit of filtering process to the three-phase alternating current exported.Particularly, second order passive filter is electric capacity C1, C2, C3 that three one end connect, the other end is connected with three outputs of three-phase bridge type inverse main circuit respectively.Voltage feedback circuit is made up of resistance R1-R6, six resistance connect between two after one end is interconnected, the other end is connected with three outputs of three-phase bridge type inverse main circuit respectively, the resistance joint of connecting between two is as voltage feedback circuit output 36.The input 31 of inverter circuit M3 is connected with the output 22 of direct current modulate circuit M2, inverter circuit M3 is under the control of three-phase SPWM signal, the direct voltage that direct current modulate circuit M2 exports is changed into the power frequency ac voltage of specific voltage, exported by output 32,33,34.
Also control circuit is comprised in the present embodiment, as shown in Figure 6, the Three-phase SPWM generating chip that control circuit comprises the first single-chip microcomputer and is connected with the first single-chip microcomputer, the output of Three-phase SPWM generating chip is connected with the IGBT drive circuit of inverter circuit, and the first input end of the first single-chip microcomputer is connected with the voltage feedback circuit of inverter circuit.The first single-chip microcomputer for generation of control signal adopts high-performance AVR single chip MEGA16, Three-phase SPWM generating chip for generating IGBT drive singal adopts Three-phase SPWM to generate special chip EG8030, its output 42 is connected with the control signal input 35 in inverter circuit, and the input 41 of control circuit is connected with the voltage feedback circuit output 36 of inverter circuit M3 for control signal, the input 43 of control circuit receiving man-machine interface circuit and export.The actual output voltage value that control circuit feeds back according to the given demand voltage value of man-machine interface circuit and voltage feedback circuit output 36, produces accurate SPWM signal control circuit and produces the alternating voltage needed.The inverter circuit driving generation of SPWM signal adopts hardware generate pattern, and namely adopt Three-phase SPWM to generate special chip EG8030, outside only needs the reference value providing modulation voltage, improves the reliability used.The state that control circuit adopts High Performance SCM to be responsible for main circuit specially controls, and enhances the Whole Response speed of system.
The present embodiment also comprises man-machine interface circuit, and as shown in Figure 7, man-machine interface circuit comprises second singlechip, the liquid crystal display screen be connected with second singlechip respectively and button, and man-machine interface circuit output is connected with the second input of the first single-chip microcomputer.Second singlechip is MEGA8 single-chip microcomputer, liquid crystal display screen is 12864 liquid crystal display screens, the key-press input control information of operating personnel by being connected with MEGA8 single-chip microcomputer, by the state information of liquid crystal display screen display control information and whole voltage regulator.Man-machine interface circuit output 51 is connected with control circuit input 41, and control information is passed to control circuit by man-machine interface circuit, and the state information of voltage regulator is reached man-machine interface circuit display by control circuit.Adopt the special signal input of single-chip microcomputer management button and the data display of liquid crystal display screen.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (10)
1. a portable electronic voltage regulator, it is characterized in that, comprise box body (1) and be arranged on the upper openable lid (2) of box body (1), described box body (1) internal fixtion is provided with regulator circuit plate, described regulator circuit plate is integrated with the rectification circuit (M1), direct current modulate circuit (M2) and the inverter circuit (M3) that are sequentially connected in series, described direct current modulate circuit (M2) comprises pulse oscillation circuit (M21), controlling circuit of voltage regulation (M22) and output circuit (M23); At described regulator circuit plate covering, man-machine interface plate (4) is housed, described man-machine interface plate (4) is arranged three-phase voltage lead-out terminal (41), three-phase input end (42), 220V voltage input-terminal (43), mains switch (44), communication interface (45), liquid crystal display screen (46) and button (47).
2. portable electronic voltage regulator as claimed in claim 1, it is characterized in that, described rectification circuit (M1) comprises fuse wire fuse B1, B2, B3, rectifier diode D1-D6, current-limiting inductance L1 and storage capacitor C1, described rectifier diode is in parallel in the same way after series aiding connection between two, negative electrode one end after parallel connection is connected with one end of current-limiting inductance L1, and the anode one end after parallel connection is connected to the other end of current-limiting inductance L1 by storage capacitor C1; One end of described fuse B1, B2, B3 is connected between the rectifier diode of connecting between two, the other end of described fuse B1, B2, B3 is the input of described rectification circuit (M1), described current-limiting inductance L1 connects the output of one end as rectification circuit (M1) of storage capacitor C1, the other end ground connection of described storage capacitor C1.
3. portable electronic voltage regulator as claimed in claim 1 or 2, is characterized in that, the pulse oscillation circuit (M21) of described direct current modulate circuit (M2) comprises vibration major loop, positive feedback loop and starting resistance circuit.
4. portable electronic voltage regulator as claimed in claim 3, it is characterized in that, described vibration major loop comprises the oscillating circuit, switching tube and the switch transformer T901 armature winding L1 that connect successively; Current-limiting resistance R915, divider resistance R913, divider resistance R910 and error amplifying circuit that described positive feedback loop comprises feedback winding L 2, connects with described feedback winding L 2, with the circuit in parallel be made up of described feedback winding L 2 and current-limiting resistance R915 after described divider resistance R913 and described divider resistance R910 connects, described divider resistance R913 is connected with the inverting input of error amplifying circuit with the described junction of divider resistance R910; Described starting resistance circuit comprises the starting resistance R923 and starting resistance R905 that are connected in series, and described starting resistance circuit on one side is connected with the output of described rectification circuit (M1), the other end is connected with described oscillating circuit.
5. portable electronic voltage regulator as claimed in claim 1 or 2, it is characterized in that, described controlling circuit of voltage regulation (M22) comprises the sample circuit, error amplifying circuit and the pulse width regulating circuit that connect successively.
6. portable electronic voltage regulator as claimed in claim 1 or 2, it is characterized in that, described output circuit (M23) comprises the pi type filter that switch transformer T901 level exports winding L 3, rectifier diode D921 and be made up of electric capacity C932, inductance L 901 and electric capacity C936.
7. portable electronic voltage regulator as claimed in claim 1, it is characterized in that, described inverter circuit (M3) comprises three-phase bridge type inverse main circuit, for driving the IGBT drive circuit of igbt transistor, for carrying out second order passive filter and the voltage feedback circuit of filtering process to the three-phase alternating current exported.
8. portable electronic voltage regulator as claimed in claim 7, it is characterized in that, also comprise control circuit, the Three-phase SPWM generating chip that described control circuit comprises the first single-chip microcomputer and is connected with the first single-chip microcomputer, the described output of Three-phase SPWM generating chip is connected with the IGBT drive circuit of inverter circuit, and the first input end of described first single-chip microcomputer is connected with the voltage feedback circuit of described inverter circuit.
9. portable electronic voltage regulator as claimed in claim 8, it is characterized in that, also comprise man-machine interface circuit, described man-machine interface circuit comprises second singlechip, the liquid crystal display screen be connected with second singlechip respectively and button, and described man-machine interface circuit output is connected with the second input of described first single-chip microcomputer.
10. portable electronic voltage regulator as claimed in claim 1, it is characterized in that, described liquid crystal display screen (46) is arranged on the centre of described man-machine interface plate (4), described three-phase voltage lead-out terminal (41) and three-phase input end (42) are arranged on the upper left corner of described liquid crystal display screen (46), described 220V voltage input-terminal (43), mains switch (44), communication interface (45) form a line and are arranged on the right side of described liquid crystal display screen (46), and described button (47) is arranged on the below of described liquid crystal display screen (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493810.0U CN204179954U (en) | 2014-08-29 | 2014-08-29 | A kind of portable electronic voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420493810.0U CN204179954U (en) | 2014-08-29 | 2014-08-29 | A kind of portable electronic voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204179954U true CN204179954U (en) | 2015-02-25 |
Family
ID=52568728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420493810.0U Expired - Fee Related CN204179954U (en) | 2014-08-29 | 2014-08-29 | A kind of portable electronic voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204179954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720832A (en) * | 2015-04-22 | 2016-06-29 | 周景振 | Magnetic resonance wireless charging transmission integration structure type resonance power supply |
| CN111295828A (en) * | 2017-11-06 | 2020-06-16 | 大金工业株式会社 | Power conversion device and air conditioning device |
-
2014
- 2014-08-29 CN CN201420493810.0U patent/CN204179954U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720832A (en) * | 2015-04-22 | 2016-06-29 | 周景振 | Magnetic resonance wireless charging transmission integration structure type resonance power supply |
| CN111295828A (en) * | 2017-11-06 | 2020-06-16 | 大金工业株式会社 | Power conversion device and air conditioning device |
| CN111295828B (en) * | 2017-11-06 | 2023-09-12 | 大金工业株式会社 | Power conversion device and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103155714B (en) | Led driving chip and circuit with power compensation | |
| CN107733245B (en) | A kind of efficient amplitude modulation perseverance high-frequency electric dust removal power circuit | |
| CN102664528B (en) | A kind of Switching Power Supply | |
| CN103580301A (en) | Wireless power transmission power control system and method | |
| CN207625446U (en) | Switching power circuit | |
| CN105375435B (en) | Electricity and the Self-power protective device and system of tripping are taken based on three-phase current sensing | |
| WO2015096613A1 (en) | Online interactive uninterruptible power supply and control method therefor | |
| CN103856086B (en) | A kind of current transformer power taking control method and system | |
| CN102882288A (en) | Wireless power transmission system and control method thereof | |
| CN201937474U (en) | Power supply adopting simple and practical output overvoltage protection circuit | |
| CN203352463U (en) | multi-channel isolated output and anti-interference intelligent power capacitor | |
| CN203377777U (en) | A soft start circuit of an auxiliary power supply | |
| CN205490211U (en) | Miniwatt switching power supply circuit of multiplexed output | |
| CN204179954U (en) | A kind of portable electronic voltage regulator | |
| CN104284481A (en) | Bridgeless electrolytic-capacitor-free low-ripple-wave high-power constant-current power supply of LED lamp | |
| CN100561816C (en) | Burst current suppressing circuit and use its power supply device | |
| CN208257661U (en) | The controllable high-voltage DC power supply of 35kV oscillatory wave system | |
| CN205992856U (en) | Switching power supply and ammeter | |
| CN204810140U (en) | Power factor correction circuit and invertion power supply circuit, contravariant welding machine | |
| CN210608945U (en) | Switch voltage transformation circuit and charger | |
| CN207265893U (en) | A kind of separated exciting switching power circuit based on pulse width modulation | |
| CN207910691U (en) | A kind of novel high-power semibridge system output rearrangeable switch power supply | |
| CN203056981U (en) | Access control system power supply | |
| CN202475261U (en) | Power supply circuit of motor protector | |
| CN203278658U (en) | Switch power supply circuit |
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: 20150225 Termination date: 20180829 |