CN207135004U - A kind of Width funtion inverter - Google Patents
A kind of Width funtion inverter Download PDFInfo
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- CN207135004U CN207135004U CN201721054546.0U CN201721054546U CN207135004U CN 207135004 U CN207135004 U CN 207135004U CN 201721054546 U CN201721054546 U CN 201721054546U CN 207135004 U CN207135004 U CN 207135004U
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Abstract
The utility model provides a kind of Width funtion inverter, including direct-flow input circuit, recommends booster circuit, inversion full-bridge and MCU control circuit；It is 260VDC that DC input voitage recommends boosting through transformer, MCU control circuit produces pwm signal, pass through each switching tube in PWM drive control circuit inverter bridges, 260VDC direct currents are by inversion full-bridge output alternating current, also compare control circuit including Transformer Winding circle, described Transformer Winding circle controls the ratio of winding of transformer than control circuit under MCU control circuit control, and different input direct voltages is transformed into 260VDC.In the utility model, the ratio of winding for controlling transformer using MCU control circuit relaxes input voltage.
Description
Technical field
Inverter field is the utility model is related to, more particularly to a kind of Width funtion inverter.
Background technology
Inverter is that direct current energy (battery, accumulator jar) is transformed into alternating current (generally 220v50HZ sines or side
Ripple).Popular says, inverter is a kind of device that direct current (DC) is converted into alternating current (AC).It is patrolled by inverter bridge, control
Collect and filter circuit forms.
The function of inverter is relatively simple in the market, and use range is small, and these inverter input direct-currents are single, output
A-c cycle is also single, it is impossible to meets market needs.
Utility model content
The utility model is single for current inverter input direct-current, it is impossible to meets the deficiency of market needs, there is provided a kind of
Width funtion inverter.
The utility model is that technical scheme is used by realizing its purpose of utility model：A kind of Width funtion inverter, bag
Include direct-flow input circuit, recommend booster circuit, inversion full-bridge and MCU control circuit；MCU control circuit produces pwm signal and passed through
Each switching tube in PWM drive control circuit inverter bridges, the output voltage of direct-flow input circuit is through recommending booster circuit liter
Press and export alternating current by inversion full-bridge for 260VDC direct currents, the 260VDC electric signals of transformer secondary output output, described recommends
Booster circuit includes transformer, in addition to Transformer Winding circle than control circuit, and described Transformer Winding circle is than control electricity
Road controls the ratio of winding of transformer under MCU control circuit control, and different input direct voltages is transformed into 260VDC.
In the utility model, the ratio of winding for controlling transformer using MCU control circuit relaxes input voltage.
Further, in above-mentioned Width funtion inverter：Described Transformer Winding circle is arranged on transformation than control circuit
The switch SPDT controlled by MCU control circuit set in the tap of device T secondary coil.
Further, in above-mentioned Width funtion inverter：Also include cell voltage sample circuit, described MCU control electricity
Road sets described switch SPDT opening and closing according to the output signal of described cell voltage sample circuit.
Further, in above-mentioned Width funtion inverter：Described cell voltage sample circuit include divider resistance R22,
Divider resistance R23, resistance R24, resistance R25, diode D5, electrochemical capacitor C10, electric capacity C11；Described divider resistance R22 and
Divider resistance R23 is connected between anode and ground, is led to from divider resistance R22 and divider resistance R23 common port lead-out wire
Cross the input voltage signal input that resistance R25 output voltage sampled signals connect MCU control circuit, electrochemical capacitor C10 and electric capacity
C11 is grounded in resistance R25 both sides；Diode D5 is connected to the common port of anode and divider resistance R22 and divider resistance R23
Between lead-out wire, diode D5 N poles connect anode, resistance R24 be connected on divider resistance R22's and divider resistance R23
Between common port lead-out wire.
Further, in above-mentioned Width funtion inverter：Also include temperature sampling circuit, described temperature sampling circuit pair
The temperature sampling of inversion full-bridge is input to described MCU control circuit, described temperature sampling circuit include thermo-sensitive resistor RT1,
Current-limiting resistance R9, sample resistance R10, electrochemical capacitor C3, electric capacity C4；5V power output ends are by the temperature sensitive electricity of current-limiting resistance R9 series windings
Extraction temperature signal connects after resistance RT1 ground connection, current-limiting resistance R9 and thermo-sensitive resistor RT1 common port lead-out wire meet sample resistance R10
The temperature signal input of MCU control circuit, described electrochemical capacitor C3 and electric capacity C4 are grounded in current-limiting resistance R9 both sides.
Further, in above-mentioned Width funtion inverter：Also include cooling circuit, described MCU control circuit is detecting
When exceeding setting value to temperature, described cooling circuit is controlled to work；Described cooling circuit includes cooling fan FAN and cooling
Fan FAN control circuit, cooling fan FAN control circuit include operational amplifier U2B, triode Q2, diode D3, electricity
Hinder R16, resistance R13, resistance R20, resistance R8, resistance R19, resistance R26, electric capacity C14 and electric capacity C9；Described MCU control electricity
The fan control signal on road connects operational amplifier U2B in-phase input end, operational amplifier U2B homophase input through resistance R16
End is grounded by electric capacity C14；+ 5V power output ends are grounded by resistance R13 and resistance R20, resistance R13 and resistance R20 public affairs
Operational amplifier U2B out-phase end is terminated altogether, and operational amplifier U2B out-phase end is grounded by electric capacity C9, operational amplifier U2B out-phase
End connects triode Q2 colelctor electrode, triode Q2 grounded emitter by resistance R8, and triode Q2 base stage connects operation amplifier
Device U2B output end ,+5V power output ends connect operational amplifier U2B output end by resistance R19, operational amplifier U2B's
Terminating diode D3 P poles are exported, diode D3 N poles meet cooling fan FAN.
Further, in above-mentioned Width funtion inverter：Also include warning circuit, described MCU control circuit is detecting
When exceeding setting value to temperature, described warning circuit is controlled to work, described warning circuit includes buzzer LS1 buzzer controls
Circuit processed, described buzzer control circuit include triode Q1, diode D6, resistance R21, resistance R36；Described MCU controls
The alarm signal output end Buzzeron/off of circuit processed is grounded by resistance R21 and resistance 36, the public affairs of resistance R21 and resistance 36
Triode Q1 base stage, triode Q1 grounded emitter are terminated altogether；+ 5V power output ends meet triode Q1 by diode D6
Colelctor electrode, diode D6 P poles connect triode Q1 colelctor electrode；Buzzer LS1 two terminals meet diode D6 respectively
Both ends.
The utility model is further detailed with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the theory diagram of the utility model embodiment 1.
Fig. 2 is that the push-pull type power conversion circuits of the utility model embodiment 1 and Transformer Winding circle compare control circuit.
Fig. 3 is the cell voltage sample circuit of the utility model embodiment 1.
Fig. 4 is the temperature sampling circuit of the utility model embodiment 1.
Fig. 5 is the buzzer circuit of the utility model embodiment 1.
Fig. 6 is the cooling circuit of the utility model embodiment 1.
Embodiment
The present embodiment is that a 48V/60V/72V/ and 12V/24V automatic identifications that integrate are integrated, Width funtion input
The inverter of scope, inverter are selected to input by MCU by MCU intelligent control methods using battery voltage detection circuit
Cell voltage；So as to realize that DC Width funtions input, while change the output frequency of inverter by way of dial-up.It can meet
The requirement of country variant electrical appliance；So as to reduce the financial cost of user.
As shown in figure 1, the Width funtion inverter of the present embodiment includes direct-flow input circuit, inversion full-bridge and MCU control electricity
Road；MCU control circuit produces pwm signal and passes through each switching tube in PWM drive control circuit inverter bridges, direct current input electricity
The 260VDC electric signals of road output are by inversion full-bridge output alternating current, in addition to Transformer Winding circle is than control circuit, transformation
Device winding circle controls the ratio of winding of transformer than control circuit under MCU control circuit control, and 48V/60V/72V/ is integrated
Different input direct voltages is transformed into 260VDC with 12V/24V etc..The pwm signal control that MCU control circuit produces high frequency becomes
Tap simple depressor T, generation are input to the simple high frequency electrical signal of transformer, in transformer T secondary, controlled using MCU
Circuit sets corresponding Transformer Winding circle ratio according to different input voltages is detected, makes the voltage for being input to inversion full-bridge
It is maintained at 260VDC.Have in the Width funtion inverter of the present embodiment by the voltage increase of direct-flow input circuit output to 26VDC
Push-pull type power conversion circuits, described push-pull type power conversion circuits include transformer T.As shown in Fig. 2 Transformer Winding
The switch SPDT controlled by MCU control circuit set is enclosed in the tap for the secondary coil that transformer T is arranged on than control circuit.
In addition, in the present embodiment, MCU control circuit sets described open according to the output signal of cell voltage sample circuit
Close SPDT opening and closing.Cell voltage sample circuit is as shown in Figure 3：Including divider resistance R22, divider resistance R23, resistance R24, electricity
Hinder R25, diode D5, electrochemical capacitor C10, electric capacity C11；Described divider resistance R22 and divider resistance R23 is being connected in battery just
Between pole and ground, sampled and believed by resistance R25 output voltages from divider resistance R22 and divider resistance R23 common port lead-out wire
The input voltage signal input of MCU control circuit, electrochemical capacitor C10 and electric capacity C11 number is met to be grounded in resistance R25 both sides；Two
Pole pipe D5 is connected between anode and divider resistance R22 and divider resistance R23 common port lead-out wire, diode D5 N
Pole connects anode, resistance R24 be connected between divider resistance R22 and divider resistance R23 common port lead-out wire.
In addition, there is other detection circuit and control circuit such as temperature sensing circuits in the present embodiment and according to temperature detection
Cooling circuit or warning circuit of the temperature conditions control of circuit output etc..Temperature sampling circuit is as shown in figure 4, the present embodiment
In, temperature sampling circuit is input to MCU control circuit to the temperature sampling of inversion full-bridge, and temperature sampling circuit includes thermo-sensitive resistor
RT1, current-limiting resistance R9, sample resistance R10, electrochemical capacitor C3, electric capacity C4；5V power output ends are by current-limiting resistance R9 series winding temperature
Quick resistance RT1 ground connection, current-limiting resistance R9 and thermo-sensitive resistor RT1 common port lead-out wire draw temperature letter after meeting sample resistance R10
The temperature signal input of MCU control circuit, described electrochemical capacitor C3 and electric capacity C4 number is met to be grounded in current-limiting resistance R9 both sides.
MCU control circuit is when detecting that temperature exceedes setting value, control cooling circuit work；The cooling electricity of the present embodiment
Road is as shown in fig. 6, the control circuit including cooling fan FAN and cooling fan FAN, cooling fan FAN control circuit include
Operational amplifier U2B, triode Q2, diode D3, resistance R16, resistance R13, resistance R20, resistance R8, resistance R19, resistance
R26, electric capacity C14 and electric capacity C9；The fan control signal of MCU control circuit connects the same mutually defeated of operational amplifier U2B through resistance R16
Enter end, operational amplifier U2B in-phase input end is grounded by electric capacity C14；+ 5V power output ends pass through resistance R13 and resistance
R20 is grounded, and resistance R13 and resistance R20 public termination operational amplifier U2B out-phase end, operational amplifier U2B out-phase end are passed through
Electric capacity C9 is grounded, and operational amplifier U2B out-phase end connects triode Q2 colelctor electrode by resistance R8, and triode Q2 emitter stage connects
Ground, triode Q2 base stage connect operational amplifier U2B output end, and+5V power output ends connect operational amplifier by resistance R19
U2B output end, operational amplifier U2B output terminating diode D3 P poles, diode D3 N poles meet cooling fan FAN.
MCU control circuit controls described warning circuit to work, described alarm when detecting that temperature exceedes setting value
Circuit includes buzzer LS1 buzzer control circuits, and buzzer control circuit is as shown in figure 5, including triode Q1, diode
D6, resistance R21, resistance R36；The alarm signal output end Buzzer on/off of described MCU control circuit pass through resistance R21
It is grounded with resistance 36, the public termination triode Q1 of resistance R21 and resistance 36 base stage, triode Q1 grounded emitter；+5V
Power output end connects triode Q1 colelctor electrode by diode D6, and diode D6 P poles connect triode Q1 colelctor electrode；Buzzing
Device LS1 two terminals connect diode D6 both ends respectively.
Claims (7)
1. a kind of Width funtion inverter, including direct-flow input circuit, recommend booster circuit, inversion full-bridge and MCU control circuit；
MCU control circuit produces pwm signal and passes through each switching tube in PWM drive control circuit inverter bridges, direct-flow input circuit
Output voltage through recommending booster circuit boosting be 260VDC direct currents, the 260VDC electric signals that transformer secondary output exports pass through inversion
Full-bridge exports alternating current, it is characterised in that：Described booster circuit of recommending includes transformer, in addition to Transformer Winding circle ratio
Control circuit, described Transformer Winding circle control the ratio of winding of transformer than control circuit under MCU control circuit control, will
Different input direct voltages are transformed into 260VDC.
2. Width funtion inverter according to claim 1, it is characterised in that：Described Transformer Winding circle compares control circuit
It is arranged on the switch SPDT controlled by MCU control circuit set in the tap of transformer T secondary coil.
3. Width funtion inverter according to claim 2, it is characterised in that：Also include cell voltage sample circuit, it is described
The MCU control circuit switch SPDT according to the setting of the output signal of described cell voltage sample circuit opening and closing.
4. Width funtion inverter according to claim 3, it is characterised in that：Described cell voltage sample circuit includes dividing
Piezoresistance R22, divider resistance R23, resistance R24, resistance R25, diode D5, electrochemical capacitor C10, electric capacity C11；Described partial pressure
Resistance R22 and divider resistance R23 are connected between anode and ground, from divider resistance R22 and divider resistance R23 common port
Lead-out wire connects the input voltage signal input of MCU control circuit, electrochemical capacitor by resistance R25 output voltage sampled signals
C10 and electric capacity C11 is grounded in resistance R25 both sides；Diode D5 is connected to anode and divider resistance R22 and divider resistance
Between R23 common port lead-out wire, diode D5 N poles connect anode, resistance R24 be connected on divider resistance R22 and point
Between piezoresistance R23 common port lead-out wire.
5. Width funtion inverter according to claim 2, it is characterised in that：Also include temperature sampling circuit, described temperature
Degree sample circuit is input to described MCU control circuit to the temperature sampling of inversion full-bridge, and described temperature sampling circuit includes
Thermo-sensitive resistor RT1, current-limiting resistance R9, sample resistance R10, electrochemical capacitor C3, electric capacity C4；5V power output ends pass through current-limiting resistance
R9 series winding thermo-sensitive resistor RT1 ground connection, current-limiting resistance R9 and thermo-sensitive resistor RT1 common port lead-out wire draw after meeting sample resistance R10
Go out the temperature signal input that temperature signal connects MCU control circuit, described electrochemical capacitor C3 and electric capacity C4 are in current-limiting resistance R9
Both sides are grounded.
6. Width funtion inverter according to claim 5, it is characterised in that：Also include cooling circuit, described MCU controls
Circuit controls described cooling circuit to work when detecting that temperature exceedes setting value；Described cooling circuit includes cooling wind
Fan FAN and cooling fan FAN control circuit, cooling fan FAN control circuit include operational amplifier U2B, triode Q2,
Diode D3, resistance R16, resistance R13, resistance R20, resistance R8, resistance R19, resistance R26, electric capacity C14 and electric capacity C9；It is described
The fan control signal of MCU control circuit operational amplifier U2B in-phase input end, operational amplifier U2B are met through resistance R16
In-phase input end be grounded by electric capacity C14；+ 5V power output ends are grounded by resistance R13 and resistance R20, resistance R13 and electricity
R20 public termination operational amplifier U2B out-phase end is hindered, operational amplifier U2B out-phase end is grounded by electric capacity C9, operation amplifier
Device U2B out-phase end connects triode Q2 colelctor electrode, triode Q2 grounded emitter by resistance R8, and triode Q2 base stage connects
Operational amplifier U2B output end ,+5V power output ends connect operational amplifier U2B output end by resistance R19, and computing is put
Big device U2B output terminating diode D3 P poles, diode D3 N poles meet cooling fan FAN.
7. Width funtion inverter according to claim 5, it is characterised in that：Also include warning circuit, described MCU controls
Circuit controls described warning circuit to work when detecting that temperature exceedes setting value, and described warning circuit includes buzzer
LS1 buzzer control circuits, described buzzer control circuit include triode Q1, diode D6, resistance R21, resistance R36；
The alarm signal output end Buzzer on/off of described MCU control circuit are grounded by resistance R21 and resistance 36, resistance R21
With the public termination triode Q1 of resistance 36 base stage, triode Q1 grounded emitter；+ 5V power output ends pass through diode
D6 connects triode Q1 colelctor electrode, and diode D6 P poles connect triode Q1 colelctor electrode；Buzzer LS1 two terminals point
Diode D6 both ends are not connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054546.0U CN207135004U (en) | 2017-08-22 | 2017-08-22 | A kind of Width funtion inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721054546.0U CN207135004U (en) | 2017-08-22 | 2017-08-22 | A kind of Width funtion inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207135004U true CN207135004U (en) | 2018-03-23 |
Family
ID=61635669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721054546.0U Active CN207135004U (en) | 2017-08-22 | 2017-08-22 | A kind of Width funtion inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207135004U (en) |
-
2017
- 2017-08-22 CN CN201721054546.0U patent/CN207135004U/en active Active
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Address after: 2 / F and 3 / F, building B2, 138 Pacific Industrial Zone, Guangshen Road, Xintang Town, Zengcheng, Guangzhou, Guangdong 511340 Patentee after: Guangzhou Pujin Electronics Co.,Ltd. Address before: 2 / F and 3 / F, building B2, 138 Pacific Industrial Zone, Guangshen Road, Xintang Town, Zengcheng, Guangzhou, Guangdong 511340 Patentee before: GUANGZHOU CITY POOJIN ELECTRONIC TECHNOLOGY Co.,Ltd. |