CN205051582U - Dc/dc converter and electric appliance - Google Patents
Dc/dc converter and electric appliance Download PDFInfo
- Publication number
- CN205051582U CN205051582U CN201520439884.0U CN201520439884U CN205051582U CN 205051582 U CN205051582 U CN 205051582U CN 201520439884 U CN201520439884 U CN 201520439884U CN 205051582 U CN205051582 U CN 205051582U
- Authority
- CN
- China
- Prior art keywords
- circuit
- output
- voltage
- transducer
- electric capacity
- 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.)
- Withdrawn - After Issue
Links
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 34
- 238000005070 sampling Methods 0.000 claims description 20
- 238000002955 isolation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model discloses a DC/DC converter and electrical apparatus. The DC/DC converter includes: the input filter circuit is used for filtering the input direct current; the inverter circuit is connected to the output end of the input filter circuit and converts direct current into alternating current; the current guide circuit is connected to the output end of the inverter circuit and rectifies alternating current output by the inverter circuit; the voltage doubling circuit is connected to the output end of the flow guide circuit and used for adjusting the output voltage of the DC/DC converter; and the output filter circuit is connected to the output end of the voltage doubling circuit and filters the output voltage of the voltage doubling circuit. According to the utility model discloses a DC/DC converter can effectively simplify DC/DC converter's circuit structure to reduce DC/DC converter's cost.
Description
Technical field
The utility model relates to electrical and electronic technology field, in particular to a kind of DC/DC transducer and electrical equipment.
Background technology
DC/DC transducer is the electric pressure converter effectively exporting fixed voltage after changing input voltage.DC/DC transducer is divided three classes: step-up DC/DC transducer, voltage-dropping type DC/DC transducer and buck-boost type DC/DC transducer.Three classes can be adopted according to demand to control, PWM control type, PFM control type and PFM control type and PWM control type.PWM control type efficiency is high and have good output voltage ripple and noise.Even if PFM control type uses for a long time, especially there is during little load the little advantage of power consumption.Carry out PFM during the little load of PWM/PFM conversion hysteria to control, and be automatically transformed into PWM when heavy duty and control.Current dc-dc is widely used in the products such as mobile phone, MP3, digital camera, portable electronic device.
Existing DC/DC transducer, the mode generally adopting transformer type inductance to combine with bleeder circuit at transforming portion adjusts output voltage, complicated structure, and output voltage stability is lower, and cost is higher.
Utility model content
A kind of DC/DC transducer and electrical equipment are provided in the utility model embodiment, effectively can simplify the circuit structure of DC/DC transducer, and reduce the cost of DC/DC transducer.
For achieving the above object, the utility model embodiment provides a kind of DC/DC transducer, comprising: input filter circuit, for carrying out filtering to the direct current of input; Inverter circuit, is connected to the output of input filter circuit, direct current is converted to interchange; Guiding circuit, is connected to the output of inverter circuit, carries out rectification to the interchange that inverter circuit exports; Voltage-multiplying circuit, is connected to the output of guiding circuit, regulates the output voltage of DC/DC transducer; Output filter circuit, is connected to the output of voltage-multiplying circuit, and carries out filtering to the output voltage of voltage-multiplying circuit.
As preferably, DC/DC transducer also comprises isolating transformer, and the input of isolating transformer is connected to the output of inverter circuit, and the output of isolating transformer is connected to the input of guiding circuit.
As preferably, isolating transformer also comprises anti-magnetized coil, and anti-magnetized coil is connected to inverter circuit.
As preferably, DC/DC transducer also comprises controller, and output filter circuit is provided with sampling resistor, and controller is electrically connected to sampling resistor and inverter circuit, and controls inverter circuit according to the data of sampling resistor collection.
As preferably, input filter circuit comprises at least one electric capacity and at least one resistance of being arranged in parallel.
As preferably, input filter circuit comprises multiple electric capacity, and multiple electric capacity comprises electrochemical capacitor, X electric capacity and Y capacitance.
As preferably, inverter circuit is full bridge inverter.
As preferably, guiding circuit comprises the first branch road, the second branch road, the first one-way conduction unit, the second one-way conduction unit and the filter unit that form loop, first branch road and the second branch road are connected to the output of inverter circuit, first one-way conduction unit is arranged on the first leg, second one-way conduction unit is arranged on the second branch road, first one-way conduction unit and the second one-way conduction unit reverse-conducting, filter unit is connected between the output of the first one-way conduction unit and the input of the second one-way conduction unit.
As preferably, guiding circuit also comprises branch road of releasing, and branch road of releasing is in parallel with filter unit, and branch road of releasing comprises the 3rd one-way conduction unit and bleeder resistance of series connection.
As preferably, the first one-way conduction unit comprises multiple diode, and multiple diode forms at least two group diode groups in parallel, and each group diode group is in series with at least two diodes.
As preferably, it is two voltage-multiplying circuits that voltage-multiplying circuit comprises, two voltage-multiplying circuits comprise the first polar capacitor, the second polar capacitor, the first polarity free capacitor and the second polarity free capacitor, first polar capacitor and the parallel connection of the first polarity free capacitor form the first parallel branch, second polar capacitor and the parallel connection of the second polarity free capacitor form the second parallel branch, the first parallel branch and the series connection of the second parallel branch.
As preferably, output filter circuit comprises electric capacity and at least one resistance of multiple parallel connection.
As preferably, electric capacity comprises X electric capacity and Y capacitance, and X electric capacity and Y capacitance are safety electric capacity.
As preferably, output filter circuit also comprises choke, and choke is arranged between the input of output filter circuit and output.
According to another aspect of the present utility model, provide a kind of electrical equipment, comprise DC/DC transducer, this DC/DC transducer is above-mentioned DC/DC transducer.
Application the technical solution of the utility model, DC/DC transducer comprises: input filter circuit, for carrying out filtering to the direct current of input; Inverter circuit, is connected to the output of input filter circuit, direct current is converted to interchange; Guiding circuit, is connected to the output of inverter circuit, carries out rectification to the interchange that inverter circuit exports; Voltage-multiplying circuit, is connected to the output of guiding circuit, regulates the output voltage of DC/DC transducer; Output filter circuit, is connected to the output of voltage-multiplying circuit, and carries out filtering to the output voltage of voltage-multiplying circuit.DC/DC transducer of the present utility model, by the output voltage of voltage-multiplying circuit regulating rotary parallel operation, effectively increase the voltage range of transducer, the adjustable extent of output voltage can be expanded, increase the scope of application of DC/DC transducer, and making the structure of DC/DC transducer more simple, cost is lower.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the DC/DC transducer of the utility model embodiment;
Fig. 2 is the structure principle chart of the input filter circuit of the DC/DC transducer of the utility model embodiment;
Fig. 3 is the structure principle chart of the inverter circuit of the DC/DC transducer of the utility model embodiment;
Fig. 4 is the structure principle chart of the guiding circuit of the DC/DC transducer of the utility model embodiment;
Fig. 5 is the structure principle chart of the voltage-multiplying circuit of the DC/DC transducer of the utility model embodiment;
Fig. 6 is the structure principle chart of the output filter circuit of the DC/DC transducer of the utility model embodiment;
Fig. 7 is the structure principle chart of the isolating transformer of the DC/DC transducer of the utility model embodiment.
Description of reference numerals: 1, input filter circuit; 2, inverter circuit; 3, guiding circuit; 4, voltage-multiplying circuit; 5, output filter circuit; 6, isolating transformer; 7, anti-magnetized coil; 8, the first branch road; 9, the second branch road; 10, the first one-way conduction unit; 11, the second one-way conduction unit; 12, filter unit; 13, to release branch road; 14, controller.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
See shown in Fig. 1 to Fig. 7, according to embodiment of the present utility model, DC/DC transducer comprises the input filter circuit 1, inverter circuit 2, guiding circuit 3, voltage-multiplying circuit 4 and the output filter circuit 5 that are connected in series successively, and input filter circuit 1 is for carrying out filtering to the direct current of input; Inverter circuit 2 is connected to the output of input filter circuit 1, and direct current is converted to interchange; Guiding circuit 3 is connected to the output of inverter circuit 2, carries out rectification to the interchange that inverter circuit 2 exports; Voltage-multiplying circuit 4 is connected to the output of guiding circuit 3, regulates the output voltage of DC/DC transducer; Output filter circuit 5 is connected to the output of voltage-multiplying circuit 4, and carries out filtering to the output voltage of voltage-multiplying circuit 4.
This DC/DC transducer operationally, first filtering is carried out by the direct voltage of input filter circuit to input, common mode in filtering circuit, differential mode parameter, then filtered direct voltage is delivered to inverter circuit 2, the direct voltage of inverter circuit 2 to input carries out inversion conversion, make direct voltage be converted to alternating voltage, by the control of drive singal, the output voltage of inverter circuit 2 can be controlled.
After direct voltage is converted to alternating voltage, alternating voltage is delivered to guiding circuit 3 by inverter circuit 2, and guiding circuit 3 pairs of alternating voltages carry out rectifying and wave-filtering, or required direct voltage, afterwards this direct voltage are delivered to voltage-multiplying circuit 4.
Voltage-multiplying circuit 4 carries out multiplication of voltage process to direct voltage after receiving the direct voltage after guiding circuit 3 rectification, makes the output voltage of direct voltage reach required voltage, is then delivered in output filter circuit 5 by the direct voltage after process.Voltage-multiplying circuit 4 can be two voltage-multiplying circuits, voltage tripler or other many voltage-multiplying circuits, specifically can adjust according to actual conditions.
Direct voltage after the process of output filter circuit 5 pairs of voltage-multiplying circuit 4 multiplication of voltages carries out filtering process, obtains stable output voltage, then exports this direct voltage.
DC/DC transducer of the present utility model, is boosted to output voltage by voltage-multiplying circuit 4, effectively can simplify the circuit structure of transducer, expands the work range of transducer, expands the scope of application of transducer, and effectively can reduce the cost of transducer.Because the electric current of voltage-multiplying circuit is less, and the voltage that can regulate is higher, therefore also can the serviceability of transducer incremental, and improves fail safe when transducer uses.
In conjunction with shown in Figure 7, DC/DC transducer can also comprise isolating transformer 6, the input of isolating transformer 6 is connected to the output of inverter circuit 2, the output of isolating transformer 6 is connected to the input of guiding circuit 3, to carry out electrical isolation to the voltage entering guiding circuit 3 from inverter circuit 2, improve the security performance of converter output end.
Isolating transformer refers to input winding and the transformer exporting winding strap electrical isolation, and isolating transformer is in order to avoid accidentally touching electrified body simultaneously, and the isolation of transformer is the former secondary coiling of isolation electric current separately.The Main Function of isolating transformer 6 is: primary side and the electric of secondary side are insulated completely, also makes this loop isolate.In addition, utilize the feature that the high-frequency loss of isolating transformer 6 iron core is large, high frequency spurs also can be suppressed to import control loop into, thus provide purer supply voltage to power consumption equipment.
Because the secondary discord the earth of isolating transformer 6 is connected, and there is no potential difference between secondary single line and the earth, therefore use safer, fail safe when transducer uses can be improved further.
Isolating transformer 6 also comprises anti-magnetized coil 7, and anti-magnetized coil 7 is connected to inverter circuit 2.This anti-magnetized coil 7 can carry out demagnetization to the magnetic field that the input winding of isolating transformer and output winding produce, and improves the antijamming capability of transducer further.
In the present embodiment, isolating transformer T102 and T103 is isolating transformer, and transformation ratio is 1:1.
In the present embodiment, DC/DC transducer also comprises controller 14, output filter circuit 5 is provided with sampling resistor R7, and controller 14 is electrically connected to sampling resistor R7 and inverter circuit 2, from sampling resistor R7 acquisition parameter information, and to inverter circuit 2 output drive signal.Controller 14, after collecting the parameter information on sampling resistor R7, carries out drived control according to the data that sampling resistor R7 gathers to inverter circuit 2.
Permission current range is preset with in controller 14, after controller 14 collects output current by sampling resistor, the numerical value collected and the numerical value preset are compared, if the numerical value collected is positioned at default value scope, then illustrate that access load is suitable, if the numerical value collected is positioned at outside default value scope, then illustrate that access load is improper, need to adjust output current, or need to change load.
Effectively can judge that whether the access load of transducer is suitable by controller 14, make the use of transducer more safe and reliable.
This controller 14 is connected to inverter circuit 2, to inverter circuit 2 output drive signal, thus can control the output voltage of inverter circuit 2.This controller 14 controls this output voltage according to the feedback signal of sampling resistor, just can regulation output voltage easily, and output voltage can be matched with load, and regulate more simple, the work of transducer is also safer.
In conjunction with shown in Figure 2, input filter circuit 1 comprises at least one electric capacity and at least one resistance of being arranged in parallel.
In the present embodiment, input filter circuit 1 comprises multiple electric capacity, and multiple electric capacity comprises electrochemical capacitor, X electric capacity and Y capacitance.Specifically, input filter circuit 1 comprises the resistance R1, electric capacity C1, electric capacity X, electric capacity Y1 and the electric capacity Y2 that are arranged in parallel, and wherein resistance R1 is generally the large resistance that resistance is greater than 100K Ω, can absorb surge voltage, protection connection device.C1 is the electrochemical capacitor of large capacitance, can, according to the power selection capacitance of power consumption equipment, can be the parallel connection of an electrochemical capacitor or multiple electrochemical capacitor.Preferably, electric capacity X, electric capacity Y1 and electric capacity Y2 are safety electric capacity, for the filtering of common mode, differential mode parameter in circuit.Safety electric capacity has better fail safe and anti-interference, can improve the service behaviour of transducer further.
Resistance herein and the quantity of electric capacity can adjust according to the actual needs, are not limited to above-mentioned number and the type of electric capacity.
Connection line between input filter circuit 1 and inverter circuit 2 is also in series with sampling resistor R2 and corresponds to current sensor T2 or the current transformer of this sampling resistor R2 setting, current sensor T2 is connected to controller 14, the input current collected is transferred to controller 14, controller 14 regulates the input current on sampling resistor R2 according to the output current on R7, makes the output current on R7 reach instructions for use.
In conjunction with shown in Figure 3, the inverter circuit 2 in the present embodiment is full bridge inverter.This full bridge inverter comprises UND1, UND2, UND3, UND4 tetra-IGBT, and four IGBT form full-bridge inverting, change direct voltage into alternating voltage, by the drived control of controller 14, controls output voltage.In order to cost-saving, IGBT herein also can substitute with the metal-oxide-semiconductor of parallel connection.
Inverter circuit 2 herein also can be other forms of inverter circuit, such as half-bridge inversion circuit etc.
In conjunction with shown in Figure 4, guiding circuit 3 in the present embodiment comprises the first branch road 8 forming loop, second branch road 9, first one-way conduction unit 10, second one-way conduction unit 11 and filter unit 12, first branch road 8 and the second branch road 9 are connected to the output of inverter circuit 2, first one-way conduction unit 10 is arranged on the first branch road 8, second one-way conduction unit 11 is arranged on the second branch road 9, first one-way conduction unit 10 and the second one-way conduction unit 11 reverse-conducting, filter unit 12 is connected between the output of the first one-way conduction unit 10 and the input of the second one-way conduction unit 11.
First one-way conduction unit 10 and the second one-way conduction unit 11 can form one-way conduction effect to the electric current in guiding circuit 3, rectification can be carried out to the voltage that inverter circuit 2 exports, make guiding circuit 3 form commutating circuit simultaneously, improve the rectification effect of guiding circuit 3.
First one-way conduction unit 10 comprises multiple diode, and multiple diode forms at least two group diode groups in parallel, and each group diode group is in series with at least two diodes.In the present embodiment, multiple diode is four, diode D3, D4, D5, D6, and wherein diode D3 and D4 connects, and diode D5 and D6 connects, diode D3 and D4 after series connection with connect after diode D5 and D6 in parallel.The benefit of this kind of structure is, the diode of series connection can improve the service behaviour of the first one-way conduction unit 10, even if there is individual diode breakdown in the course of the work, also the inefficacy of the first one-way conduction unit 10 can not be caused, in addition, Diode series also can improve the resistance to pressure of the first one-way conduction unit 10, increases back-pressure bearing value.Diode in parallel can form shunting, improve the first one-way conduction unit 10 by electric current.Certainly, the diode quantity of series connection and the number of diodes of parallel connection are all not limited to above-described embodiment, can adjust according to actual conditions.
Second one-way conduction unit 11 comprises multiple diode, and multiple diode forms at least two group diode groups in parallel, and each group diode group is in series with at least two diodes.In the present embodiment, multiple diode is four, diode D7, D8, D9, D10, and wherein diode D7 and D8 connects, and diode D9 and D10 connects, diode D7 and D8 after series connection with connect after diode D9 and D10 in parallel.
Filter unit 12 comprises filter capacitor C11.
Guiding circuit 3 also comprises branch road 13 of releasing, and branch road 13 of releasing is in parallel with filter unit 12, and branch road 13 of releasing comprises the 3rd one-way conduction unit and the bleeder resistance R4 of series connection.The 3rd one-way conduction unit in the present embodiment is diode D4, D4 and R4 is together as the bleed-off circuit of the inductive energy storage inside follow-up voltage-multiplying circuit 4, thus fail safe when can improve inductance work in voltage-multiplying circuit further, make converter circuit structure safer.
In conjunction with shown in Figure 5, it is two voltage-multiplying circuits that voltage-multiplying circuit 4 comprises, two voltage-multiplying circuits comprise the first polar capacitor C14, the second polar capacitor C15, the first polarity free capacitor C12 and the second polarity free capacitor C13, first polar capacitor C14 and the first polarity free capacitor C12 parallel connection forms the first parallel branch, second polar capacitor C15 and the second polarity free capacitor C13 parallel connection forms the second parallel branch, the first parallel branch and the series connection of the second parallel branch.
During the work of this two voltage-multiplying circuit, due to isolating transformer 6 producing inductive current, under the one-way conduction effect of the first one-way conduction unit 10 and the second one-way conduction unit 11, voltage in the same way is all produced at the two ends of electric capacity C12 and electric capacity C13, the i.e. Voltage Series of electric capacity C12 and the generation of electric capacity C13 two ends, when electric capacity C12 is identical with the specification of electric capacity C13, and the voltage that electric capacity C12 and electric capacity C13 two ends produce is also identical, and when being U, the voltage now supposing low-pressure end 1 pin of C13 is 0, then the magnitude of voltage of high-pressure side 2 pin of C13 is U, the voltage of C13 is U, because high-pressure side 2 pin of C13 is connected with low-pressure end 2 pin of C12, therefore the low-pressure end voltage of C12 is U, the high-pressure side 1 pin voltage of C12 is 2U, also after being C12 and C13 series connection, the voltage at two ends is 2U, thus the two times of boostings realized output voltage.
Two voltage both positive and negative polarities having polar capacitor C14 and C15 can ensure the electric capacity C16 two ends of output filter circuit 5 are correct, thus ensure that the polarity of output voltage is correct.
Connecting circuit between two voltage-multiplying circuits and guiding circuit is also provided with filter inductance L105 and L106, filtering can be carried out to the voltage through guiding circuit 3.
In conjunction with shown in Figure 6, output filter circuit 5 comprises electric capacity and at least one resistance of multiple parallel connection.
Electric capacity comprises X electric capacity and Y capacitance, and X electric capacity and Y capacitance are safety electric capacity.
Specifically, output filter circuit 5 comprises electric capacity C16, electric capacity C18 in parallel, electric capacity C19, electric capacity C20, electric capacity Y3, electric capacity Y4 and resistance R6, and wherein C16 is polyester capacitance, and object is to carry out DC voltage-stabilizing.C18 is that large electrochemical capacitor is in parallel, and C19 is ceramic disc capacitor, and C20 is polyester capacitance, and R6 is generally the large resistance that resistance is greater than 100K Ω.Electric capacity is herein used for the filtering of common mode, differential mode parameter in circuit.
The circuit of output filter circuit 5 is also provided with protective tube FU1, and protective tube FU1 is arranged in bus, if transducer has short-circuit conditions to occur, can fuse voluntarily, to ensure circuit safety.The circuit of output filter circuit 5 can also arrange piezo-resistance, and under piezo-resistance normality, resistance is infinitely great, and in circuit generation overvoltage, or have thunderbolt to occur, when exceeding its threshold voltage pressure sensitive voltage, resistance diminishes, and protects circuit safety below.
Sampling resistor R is arranged in bus, for sampling to the load of output filter circuit 5, so that controller 14 gathers the access situation of load.The resistance that sampling resistor R7 is formed for cement resistor parallel connection.
Output filter circuit 5 also comprises choke T101, between the input that choke T101 is arranged on output filter circuit 5 and output, wherein electric capacity C16, electric capacity C18 are positioned at the input of output filter circuit 5, and electric capacity C19, electric capacity C20, electric capacity Y3, electric capacity Y4, resistance R6, protective tube FU1 and sampling resistor R7 are all positioned at the output of output filter circuit 5.Choke T101 can suppress common mode interference signal (thunderous electrical interference) effectively, and on the difference mode signal of circuit normal transmission without impact, therefore can improve the stability of output voltage.
According to embodiment of the present utility model, electrical equipment comprises DC/DC transducer, and this DC/DC transducer is above-mentioned DC/DC transducer.
Certainly, be more than preferred implementation of the present utility model.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model general principle, can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Claims (15)
1. a DC/DC transducer, is characterized in that, comprising:
Input filter circuit (1), for carrying out filtering to the direct current of input;
Inverter circuit (2), is connected to the output of described input filter circuit (1), and described direct current is converted to interchange;
Guiding circuit (3), is connected to the output of described inverter circuit (2), carries out rectification to the interchange that described inverter circuit (2) exports;
Voltage-multiplying circuit (4), is connected to the output of described guiding circuit (3), regulates the output voltage of described DC/DC transducer;
Output filter circuit (5), is connected to the output of described voltage-multiplying circuit (4), and carries out filtering to the output voltage of described voltage-multiplying circuit (4).
2. DC/DC transducer according to claim 1, it is characterized in that, described DC/DC transducer also comprises isolating transformer (6), the input of described isolating transformer (6) is connected to the output of described inverter circuit (2), and the output of described isolating transformer (6) is connected to the input of described guiding circuit (3).
3. DC/DC transducer according to claim 2, is characterized in that, described isolating transformer (6) also comprises anti-magnetized coil (7), and described anti-magnetized coil (7) is connected to described inverter circuit (2).
4. DC/DC transducer according to claim 1, it is characterized in that, described DC/DC transducer also comprises controller (14), (5) are provided with sampling resistor to described output filter circuit, described controller (14) is electrically connected to described sampling resistor and described inverter circuit (2), and controls described inverter circuit (2) according to the data that described sampling resistor gathers.
5. DC/DC transducer according to any one of claim 1 to 4, is characterized in that, described input filter circuit (1) comprises at least one electric capacity and at least one resistance of being arranged in parallel.
6. DC/DC transducer according to claim 5, is characterized in that, described input filter circuit (1) comprises multiple electric capacity, and described multiple electric capacity comprises electrochemical capacitor, X electric capacity and Y capacitance.
7. DC/DC transducer according to any one of claim 1 to 4, is characterized in that, described inverter circuit (2) is full bridge inverter.
8. DC/DC transducer according to any one of claim 1 to 4, it is characterized in that, described guiding circuit (3) comprises the first branch road (8) forming loop, second branch road (9), first one-way conduction unit (10), second one-way conduction unit (11) and filter unit (12), described first branch road (8) and described second branch road (9) are connected to the output of described inverter circuit (2), described first one-way conduction unit (10) is arranged on the first branch road (8), described second one-way conduction unit (11) is arranged on the second branch road (9), described first one-way conduction unit (10) and described second one-way conduction unit (11) reverse-conducting, described filter unit (12) is connected between the output of described first one-way conduction unit (10) and the input of described second one-way conduction unit (11).
9. DC/DC transducer according to claim 8, it is characterized in that, described guiding circuit (3) also comprises branch road of releasing (13), described branch road of releasing (13) is in parallel with described filter unit (12), described in branch road (13) of releasing comprise the 3rd one-way conduction unit and bleeder resistance of series connection.
10. DC/DC transducer according to claim 8, it is characterized in that, described first one-way conduction unit (10) comprises multiple diode, and multiple described diode forms at least two group diode groups in parallel, and the described diode group of each group is in series with at least two described diodes.
11. DC/DC transducers according to any one of claim 1 to 4, it is characterized in that, described voltage-multiplying circuit (4) comprises two voltage-multiplying circuits, described two voltage-multiplying circuits comprise the first polar capacitor, the second polar capacitor, the first polarity free capacitor and the second polarity free capacitor, described first polar capacitor and described first polarity free capacitor parallel connection form the first parallel branch, described second polar capacitor and described second polarity free capacitor parallel connection form the second parallel branch, described first parallel branch and described second parallel branch series connection.
12. DC/DC transducers according to any one of claim 1 to 4, is characterized in that, described output filter circuit (5) comprises electric capacity and at least one resistance of multiple parallel connection.
13. DC/DC transducers according to claim 12, it is characterized in that, described electric capacity comprises X electric capacity and Y capacitance, and described X electric capacity and Y capacitance are safety electric capacity.
14. DC/DC transducers according to claim 12, is characterized in that, described output filter circuit (5) also comprises choke, between the input that described choke is arranged on described output filter circuit (5) and output.
15. 1 kinds of electrical equipment, comprise DC/DC transducer, it is characterized in that, the DC/DC transducer of described DC/DC transducer according to any one of claim 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439884.0U CN205051582U (en) | 2015-06-24 | 2015-06-24 | Dc/dc converter and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520439884.0U CN205051582U (en) | 2015-06-24 | 2015-06-24 | Dc/dc converter and electric appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205051582U true CN205051582U (en) | 2016-02-24 |
Family
ID=55345124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520439884.0U Withdrawn - After Issue CN205051582U (en) | 2015-06-24 | 2015-06-24 | Dc/dc converter and electric appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205051582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186875A (en) * | 2015-06-24 | 2015-12-23 | 珠海格力电器股份有限公司 | Dc/dc converter and electric appliance |
-
2015
- 2015-06-24 CN CN201520439884.0U patent/CN205051582U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186875A (en) * | 2015-06-24 | 2015-12-23 | 珠海格力电器股份有限公司 | Dc/dc converter and electric appliance |
| CN105186875B (en) * | 2015-06-24 | 2018-01-16 | 珠海格力电器股份有限公司 | Dc/dc converter and electric appliance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3787170A1 (en) | Dcdc converter, vehicle-mounted charger and electric vehicle | |
| EP2667499A1 (en) | Converter for power factor correction and conversion apparatus for power factor correction | |
| CN211508677U (en) | Balance-free charger | |
| CN103762873B (en) | Based on the high frequency isolation type three-level inverter of Boost | |
| WO2015096613A1 (en) | Online interactive uninterruptible power supply and control method therefor | |
| CN105871244A (en) | Single-phase AC-DC/DC-AC dual-purpose circuit and three-phase AC-DC/DC-AC dual-purpose circuit | |
| CN104300810A (en) | Power factor correction converter and control method | |
| CN103856086A (en) | Current transformer electricity taking control method and system | |
| CN206442160U (en) | A kind of many mouthfuls of USB charging circuits | |
| CN101834527A (en) | Two-stage switching power conversion circuit | |
| CN202178715U (en) | AC-DC power conversion chip and power conversion circuit | |
| CN103516030A (en) | Voltage equalizing device and method | |
| CN202750021U (en) | Converter for converting alternating current into direct current | |
| CN205051582U (en) | Dc/dc converter and electric appliance | |
| CN209488241U (en) | Small-sized quick charger | |
| CN102969910A (en) | Switching power supply control chip and application circuit thereof | |
| CN203691365U (en) | Self-powered circuit of power semiconductor switch driving circuit | |
| CN207475266U (en) | A kind of LED emergency lights constant-power charging circuit | |
| CN202004507U (en) | Wireless charging system and interference suppresser circuit for electric vehicle | |
| CN201900045U (en) | Three-phase intermediate-frequency direct-current high-voltage power supply of electric precipitator | |
| CN201839206U (en) | Improved alternating current and direct current switching power supply circuit structure | |
| CN105186875A (en) | Dc/dc converter and electric appliance | |
| CN104135166A (en) | AC/DC power supply having adjustable high-power pulse edge time | |
| CN103427651A (en) | Vehicle power supply system and working method thereof | |
| CN203457045U (en) | A DC-to-DC converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160224 Effective date of abandoning: 20180116 |
|
| AV01 | Patent right actively abandoned |