CN105763028A - Constant-current to constant-voltage converter and constant-current to constant-voltage device - Google Patents
Constant-current to constant-voltage converter and constant-current to constant-voltage device Download PDFInfo
- Publication number
- CN105763028A CN105763028A CN201610239933.5A CN201610239933A CN105763028A CN 105763028 A CN105763028 A CN 105763028A CN 201610239933 A CN201610239933 A CN 201610239933A CN 105763028 A CN105763028 A CN 105763028A
- Authority
- CN
- China
- Prior art keywords
- turns
- constant
- switch block
- constant current
- constant voltage
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
The invention discloses a constant-current to constant-voltage converter and constant-current to constant-voltage device, the converter comprises an inlet wire circuit and an outlet wire circuit and is connected with an actual load L in use, and the converter comprises a switch component S1; a first switch end of the switch component S1 is connected with the inlet wire circuit and one end of the actual load L, and a second switch end of the switch component S1 is connected with the outlet wire circuit and the one end of the actual load L; the output voltage of the converter remains constant through adjusting the duty ratio of the switch component S1; the converter and device of the invention can control the pulse width of the current flowing to the load, so that the load energy requirements are met, and the excess current is transferred to the outlet wire circuit in a bypass way without passing through the load; efficiency of the converter can reach a very high level.
Description
Technical field
The invention belongs to electronic technology field, be specially a kind of constant current and turn constant voltage changer and constant current turns constant voltage equipment.
Background technology
In single line constant current source power supply is applied, constant current is needed to turn constant voltage changer, Figure 14-A, Figure 14-B, Figure 14-C respectively illustrates the application example figure of single line constant-current source in prior art, wherein, Figure 14-A illustrates the situation of single line constant-current source both end power supplying, Figure 14-B and Figure 14-C respectively illustrates the situation of single line constant-current source single-ended power, S+ in figure represents positive polarity constant-current source, S-represents negative polarity constant-current source, N1, N2, N3, ..., Nn-1, Nn all represents that constant current turns constant voltage changer, described constant current turns constant voltage changer can connect load, each constant current turns constant voltage changer and is respectively provided with an inlet wire circuit and an outlet circuit；In Figure 14-A, constant current turns the inlet wire connection positive polarity constant-current source of constant voltage changer N1, constant current turns the inlet wire circuit of constant voltage changer N2 and turns the outlet circuit of constant voltage changer N1 with constant current and be connected, constant current turns the inlet wire circuit of constant voltage changer N3 and turns the outlet circuit of constant voltage changer N2 with constant current and be connected, constant current turns the inlet wire circuit of constant voltage changer Nn and turns the outlet circuit of constant voltage changer Nn-1 with constant current and be connected, and constant current turns the outlet connection negative polarity constant-current source of constant voltage changer Nn；In Figure 14-B, constant current turns the inlet wire connection positive polarity constant-current source of constant voltage changer N1, constant current turns the inlet wire circuit of constant voltage changer N2 and turns the outlet circuit of constant voltage changer N1 with constant current and be connected, constant current turns the inlet wire circuit of constant voltage changer N3 and turns the outlet circuit of constant voltage changer N2 with constant current and be connected, constant current turns the inlet wire circuit of constant voltage changer Nn and turns the outlet circuit of constant voltage changer Nn-1 with constant current and be connected, and constant current turns the outlet connection earth lead of constant voltage changer Nn；In Figure 14-C, constant current turns the inlet wire connection earth lead of constant voltage changer N1, constant current turns the inlet wire circuit of constant voltage changer N2 and turns the outlet circuit of constant voltage changer N1 with constant current and be connected, constant current turns the inlet wire circuit of constant voltage changer N3 and turns the outlet circuit of constant voltage changer N2 with constant current and be connected, constant current turns the inlet wire circuit of constant voltage changer Nn and turns the outlet circuit of constant voltage changer Nn-1 with constant current and be connected, and constant current turns the outlet connection negative polarity constant-current source of constant voltage changer Nn；Each constant current is turned constant voltage changer and is serially connected by respective inlet wire circuit and outlet circuit and connects into whole system with single line constant-current source and earth lead；When constant current turns constant voltage changer only one of which, the situation being in Figure 14-A, Figure 14-B and Figure 14-C only N1, so in Figure 14-A, constant current turns the outlet circuit of constant voltage changer N1 and is directly connected to negative polarity constant-current source, in Figure 14-B, constant current turns the outlet circuit of constant voltage changer N1 and is directly connected to earth lead, and in Figure 14-C, constant current turns the outlet circuit of constant voltage changer N1 and is directly connected to negative polarity constant-current source；Prior art is generally adopted stabilivolt or false load device and turns the energy consumption load of constant voltage as constant current, make constant current turn the energy consumption load of constant voltage (CC/CV) transducer and the power sum of actual loading that its outfan connects keeps constant, existing this structure is when actual loading is only small, there is constant current and turn the inefficient of constant voltage changer, serious problem of generating heat.nullFigure 13-A、Figure 13-B、Figure 13-C respectively illustrates and adopts stabilivolt as the application schematic diagram of energy consumption load in prior art，As shown in Figure 13-A，The output loop of constant-current source is serially connected with stabilivolt，It uses for current source is changed into voltage source supply load，As shown in Figure 13-B，Then need when load current is more than the output electric current of constant-current source to increase matched transform device，Make load matched，As shown in Figure 13-C，When input and the outfan of constant-current source need isolation，For the convenience dispelled the heat，Generally Zener diode is placed on load side，Active load can also be adopted to replace stabilivolt，To ensure stablizing of input voltage，Prior art also has the application of the energy consumption load of a kind of form，As shown in Figure 13-D，By regulating the size of energy consumption load，Make when actual loading changes by adjusting the energy consumption of energy consumption load，And then ensure that output voltage is constant，Thus directly constant-current source being become constant pressure source；nullSimilar circuit also has some variant form，But energy consumption load is all necessary in such circuit，Because the load in general application is constant pressure source load，When the feature of constant pressure source load is load reduction, load equivalent resistance increases，And while in constant-current source situation, load reduces，Load equivalent resistance also reduces，Common constant current turns constant voltage converter design thinking，No matter it is voltage-dropping type (BUCK)、Booster type (Booster)、Voltage raising and reducing type (BUCK-Booster)、Flyback (Fly-back)、Bridge-type、Semi-bridge type、Push-pull type etc.，Without energy consumption load，Its input is constant-current source，Output is also constant-current source，Constant pressure source load cannot be adapted to，But the application of energy consumption load makes the efficiency of power supply when actual loading is only small，Efficiency is very low，This is because the peak power that efficiency sum is power supply of the efficiency of energy consumption load and actual loading.
Summary of the invention
The present invention is directed to the proposition of problem above, and develop a kind of current pulse width that can control to flow to load, make meeting while load energy requires, unwanted currents is transmitted directly to the constant current of outlet circuit with bypass mode without load and turns constant voltage changer and constant current turns constant voltage equipment.
The technological means of the present invention is as follows:
A kind of constant current turns constant voltage changer, and this constant current turns constant voltage changer and has inlet wire circuit and outlet circuit, and connects actual loading L in use, and described constant current turns constant voltage changer and includes switch block S1；First switch terminals of described switch block S1 connects inlet wire circuit and actual loading L one end, and the second switch end of described switch block S1 connects outlet circuit and the actual loading L other end；Maintain described constant current by regulating the dutycycle of described switch block S1 to turn the output voltage of constant voltage changer constant；
Also include it addition, described constant current turns constant voltage changer:
For regulating the controller C of described switch block S1 dutycycle；
And it is placed in the driving module D controlled between end of described controller C and described switch block S1；Described driving module D controls described switch block S1 conducting and the driving signal turned off for exporting according to the duty cycle adjustment signal of described controller C output；
Further, described constant current turns constant voltage changer and also includes:
It is connected with described controller C, for detecting the voltage detection module M that described constant current turns the output voltage of constant voltage changer；Described controller C generates the duty cycle adjustment signal of switch block S1 according to the output voltage value of feedback that output voltage set-point and described voltage detection module M detect；
Further, described constant current turns the switch block S2 that constant voltage changer also includes being serially connected between inlet wire circuit and actual loading L one end；Described switch block S2 connects described controller C via described driving module D；Being controlled by described controller C that described switch block S2 is in the conduction state or off state, when described switch block S1 turns on, described switch block S2 is off state, and when described switch block S1 turns off, described switch block S2 is in the conduction state；
It addition, described constant current turns constant voltage changer also includes wave filter F1；The input of described wave filter F1 connects inlet wire circuit and outlet circuit；The outfan of described wave filter F1 and first switch terminals of described switch block S1, second switch end are in parallel；
Further, described constant current turns constant voltage changer and also includes wave filter F2；The input of described wave filter F2 is connected with the second switch end of the second switch end of switch block S2, switch block S1；The outfan of described wave filter F2 is in parallel with actual loading L two ends；
Further, described constant current turns the switch block S3 that constant voltage changer also includes being serially connected in outlet circuit and the actual loading L other end；When described switch block S1 turns on, described switch block S3 is off state, and when described switch block S1 turns off, described switch block S3 is in the conduction state.
A kind of constant current turns constant voltage equipment, turns constant voltage changer including the constant current that at least two is described above；
Further, the input that each described constant current turns constant voltage changer is serially connected and outfan is serially connected；
Further, the input that each described constant current turns constant voltage changer is serially connected and outfan is parallel with one another.
Owing to have employed technique scheme, constant current provided by the invention turns constant voltage changer and constant current turns constant voltage equipment, adopt switch block S1 as current switching parts, and then control to flow to the current pulse width of load, make, while meeting load energy requirement, without load, unwanted currents to be transmitted directly to outlet circuit with bypass mode；The present invention enables to constant current and turns the efficiency of constant voltage changer and reach significantly high level, reduces volume simultaneously, reduces weight, be greatly saved the cost of product itself and application product.
Accompanying drawing explanation
Fig. 1 is the structural representation that the constant current of the embodiment of the present invention 1 turns constant voltage changer；
Fig. 2 is the structural representation that the constant current of the embodiment of the present invention 2 turns constant voltage changer；
Fig. 3 is the structural representation that the constant current of the embodiment of the present invention 3 turns constant voltage changer；
Fig. 4 is the structural representation that the constant current of the embodiment of the present invention 4 turns constant voltage changer；
Fig. 5 is the structural representation that the constant current of the embodiment of the present invention 5 turns constant voltage changer；
Fig. 6 is the structural representation that the constant current of the embodiment of the present invention 6 turns constant voltage changer；
Fig. 7 is the structural representation that the constant current of the embodiment of the present invention 7 turns constant voltage changer；
Fig. 8 is the structural representation that the constant current of the embodiment of the present invention 8 turns constant voltage changer；
Fig. 9 is the structural representation that the constant current of the embodiment of the present invention 9 turns constant voltage changer；
Figure 10 is the structural representation that the constant current of the embodiment of the present invention 10 turns constant voltage changer；
Figure 11 is the structural representation that the constant current of the embodiment of the present invention 11 turns constant voltage equipment；
Figure 12 is the structural representation that the constant current of the embodiment of the present invention 12 turns constant voltage equipment；
Figure 13-A, Figure 13-B, Figure 13-C, Figure 13-D adopt stabilivolt as the application schematic diagram of energy consumption load in prior art；
Figure 14-A, Figure 14-B, Figure 14-C are the application example figure of single line constant-current source in prior art respectively.
In figure: 1, inlet wire circuit, 2, outlet circuit, 3, first switch terminals of switch block S1,4, the second switch end of switch block S1,5, the control end of switch block S1,6, first switch terminals of switch block S2,7, the second switch end of switch block S2,8, the control end of switch block S2.
Detailed description of the invention
Technical scheme for clearer explanation embodiments of the invention, below the accompanying drawing used required during embodiment is described is done one to introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings；When not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
Fig. 1 is the structural representation that the constant current of the embodiment of the present invention 1 turns constant voltage changer, a kind of constant current as shown in Figure 1 turns constant voltage changer, this constant current turns constant voltage changer and has inlet wire circuit 1 and outlet circuit 2, and connecting actual loading L in use, described constant current turns constant voltage changer and includes switch block S1；First switch terminals 3 of described switch block S1 connects inlet wire circuit 1 and actual loading L one end, and the second switch end 4 of described switch block S1 connects outlet circuit 2 and the actual loading L other end；Maintain described constant current by regulating the dutycycle of described switch block S1 to turn the output voltage of constant voltage changer constant.
Fig. 2 is the structural representation that the constant current of the embodiment of the present invention 2 turns constant voltage changer, this embodiment is on embodiment 1 basis it is preferred that embodiment, can also include as in figure 2 it is shown, described constant current turns constant voltage changer: for regulating the controller C of described switch block S1 dutycycle；And it is placed in the driving module D controlled between end 5 of described controller C and described switch block S1；Described driving module D controls described switch block S1 conducting and the driving signal turned off for exporting according to the duty cycle adjustment signal of described controller C output.
Fig. 3 is the structural representation that the constant current of the embodiment of the present invention 3 turns constant voltage changer, this embodiment is on embodiment 2 basis it is preferred that embodiment, as shown in Figure 3, described constant current turns constant voltage changer and can also include: be connected with described controller C, for detecting the voltage detection module M that described constant current turns the output voltage of constant voltage changer；Described controller C generates the duty cycle adjustment signal of switch block S1 according to the output voltage value of feedback that output voltage set-point and described voltage detection module M detect.
Fig. 4 is the structural representation that the constant current of the embodiment of the present invention 4 turns constant voltage changer, and this embodiment is on embodiment 3 basis it is preferred that embodiment, and as shown in Figure 4, described constant current turns constant voltage changer can also include wave filter F1；The input of described wave filter F1 connects inlet wire circuit 1 and outlet circuit 2；The outfan of described wave filter F1 and first switch terminals 3 of described switch block S1, second switch end are in parallel.
Fig. 5 is the structural representation that the constant current of the embodiment of the present invention 5 turns constant voltage changer, this embodiment is on embodiment 3 basis it is preferred that embodiment, as it is shown in figure 5, described constant current turns the switch block S2 that constant voltage changer can also include being serially connected between inlet wire circuit 1 and actual loading L one end；The control end 8 of described switch block S2 connects described controller C via described driving module D；Being controlled by described controller C that described switch block S2 is in the conduction state or off state, when described switch block S1 turns on, described switch block S2 is off state, and when described switch block S1 turns off, described switch block S2 is in the conduction state；Preferably, described constant current turns constant voltage changer and can also include wave filter F1；The input of described wave filter F1 connects inlet wire circuit 1 and outlet circuit 2；The outfan of described wave filter F1 and first switch terminals 3 of described switch block S1, second switch end are in parallel；Fig. 6 is the structural representation that the constant current of the embodiment of the present invention 6 turns constant voltage changer, this embodiment is further preferred embodiment on embodiment 5 basis, as shown in Figure 6, described constant current turns constant voltage changer and can also include: be connected with described controller C, for detecting the voltage detection module M that described constant current turns the output voltage of constant voltage changer；Described controller C generates the duty cycle adjustment signal of switch block S1 according to the output voltage value of feedback that output voltage set-point and described voltage detection module M detect.
Fig. 7 is the structural representation that the constant current of the embodiment of the present invention 7 turns constant voltage changer, and this embodiment is further preferred embodiment on embodiment 5 basis, and described constant current turns constant voltage changer can also include wave filter F2；The input of described wave filter F2 is connected with the second switch end 4 of the second switch end 7 of switch block S2, switch block S1；The outfan of described wave filter F2 is in parallel with actual loading L two ends；Fig. 8 is the structural representation that the constant current of the embodiment of the present invention 8 turns constant voltage changer, this embodiment is further preferred embodiment on embodiment 7 basis, as shown in Figure 8, described constant current turns constant voltage changer and can also include: be connected with described controller C, for detecting the voltage detection module M that described constant current turns the output voltage of constant voltage changer；Described controller C generates the duty cycle adjustment signal of switch block S1 according to the output voltage value of feedback that output voltage set-point and described voltage detection module M detect.
Fig. 9 is the structural representation that the constant current of the embodiment of the present invention 9 turns constant voltage changer, this embodiment is on embodiment 4 basis it is preferred that embodiment, as it is shown in figure 9, described constant current turns the switch block S3 that constant voltage changer can also include being serially connected in outlet circuit 2 and the actual loading L other end；When described switch block S1 turns on, described switch block S3 is off state, and when described switch block S1 turns off, described switch block S3 is in the conduction state.
Figure 10 is the structural representation that the constant current of the embodiment of the present invention 10 turns constant voltage changer, this embodiment is on embodiment 5 basis it is preferred that embodiment, as shown in Figure 10, described constant current turns the switch block S3 that constant voltage changer can also include being serially connected in outlet circuit 2 and the actual loading L other end；When described switch block S1 turns on, described switch block S3 is off state, and when described switch block S1 turns off, described switch block S3 is in the conduction state.
Embodiment 9 and embodiment 10 all add switch block S3, but in embodiment 1 to embodiment 8 equally possible increase switch block S3.Actually, switch block S2 is identical with the effect of switch block S3, principle is also equivalent, switch block S3, switch block S2 both can be unidirectional uncontrollable switches, can also be unidirectional gate-controlled switch or two-way gate-controlled switch, no matter why not same switchtype has, its effect is identical, needs to ensure one-way conduction when switch block S2, switch block S3 adopt two-way gate-controlled switch.
Figure 11 is the structural representation that the constant current of the embodiment of the present invention 11 turns constant voltage equipment, and a kind of constant current as shown in figure 11 turns constant voltage equipment, turns constant voltage changer including the constant current that at least two is described above；Further, the input that each described constant current turns constant voltage changer is serially connected and outfan is serially connected；Wherein, A1, A2 ... An are that constant current turns constant voltage changer.
Figure 12 is the structural representation that the constant current of the embodiment of the present invention 12 turns constant voltage equipment, and a kind of constant current as shown in figure 12 turns constant voltage equipment, turns constant voltage changer including the constant current that at least two is described above；Further, the input that each described constant current turns constant voltage changer is serially connected and outfan is parallel with one another；Wherein, A1, A2 ... An are that constant current turns constant voltage changer.
Filter part F1 of the present invention, filter part F2 can be the filter network being made up of the passive device such as inductance, electric capacity, it is also possible to be active power filtering network, or the filter network that passive device and active device collectively form；The input of filter part F1, F2, outfan, only to facilitate the function being filtered parts describes, do not represent the flow direction of electric current and energy；The effect of filter part F1 is the voltage pulsation filtering the continuous turn-on and turn-off of switch block S1 and producing, when actual loading L is constant, the input of filter part F1 keeps relative stability, when actual loading L changes, the input of filter part F1 is slowly varying, so makes to turn constant voltage changer with this constant current and shares the current potential that other constant current turns constant voltage changer and constant-current source can keep relative stability of a constant-current source；Filter part F1 can include at least a filter inductance, and in practical application, filter part F1 can be a higher order filter, and concrete which kind of wave filter of employing is according to practical application needs；Filter part F2 is inputted the pulsating current of end and becomes stable voltage, and filter part F2 is including at least the electric capacity being connected in parallel on input or the device playing electric capacity effect；Filter part F2 can be higher order filter, it is also possible to the filter network being made up of electric capacity, inductance, resistance, switch and transformator；Switch block S1, switch block S2 and switching device S3 can be independent switching device, it can also be the construction of switch of the mutual connection in series-parallel composition of multiple switching device, switching device S1, switching device S2 and switching device S3 can also include the circuit network increased to improve switching characteristic, such as the circuit network that resistance, electric capacity, inductance, diode etc. form；Switch block S1 adopts gate-controlled switch, specifically can adopt unidirectional gate-controlled switch, it would however also be possible to employ two-way gate-controlled switch；ON time for switch block S2, when switch block S1 turns on, switch block S2 turns off, at this moment second switch end 7 voltage of switch block S2 is higher than the voltage of its first switch terminals, when switch block S1 turns off, the voltage of first switch terminals 6 of switch block S2 can rise, until the voltage of first switch terminals 6 of switch block S2 is higher than the voltage of its second switch end, and at this moment switch block S2 conducting；Switch block S2 can include at least one diode being in parallel with its first switch terminals, second switch end or electric capacity；Error between the output voltage value of feedback that described controller C detects according to output voltage set-point and described voltage detection module M generates the duty cycle adjustment signal of switch block S1；The dutycycle of switch block S1 is more high, and the output voltage that constant current turns constant voltage changer is more low, and the dutycycle of switch block S1 is more low, and the output voltage that constant current turns constant voltage changer is more high；Actual loading L can be resistive load, capacitive load, inductive load, active load, passive load etc., it is also possible to being the combination in any load of resistive, capacitive and perception, this actual loading L can also with load matching circuit；Actual loading L can also have various changer so that the voltage that is supplied in load and can with load matched, because in constant current source power supply circuit, match with bearing power in order to constant current turns the input voltage of constant voltage changer, generally also need to a voltage matches circuit, this voltage matches circuit can be any changer, for instance DC/DC changer, DC/AC changer, AC/DC changer or AC/AC changer；Actual loading L can also have electric isolating circuit, and this electric isolating circuit is isolated between constant voltage changer and load for constant current being turned；Actual loading L can also include the circuit such as transformator, piezoelectric transformer, gives final load supplying, so actual loading L here refers to the load of broad sense described above after conversion；Controller C can adopt the combination of various known circuit such as analog circuit, digital circuit, analog circuit and digital circuit, the processor chips etc. being loaded with software can also be adopted, controller C can utilize voltage detection module M to realize voltage close loop control, it is also possible to opened loop control；Voltage detection module M can adopt potentiometer, voltage transformer and Hall element etc.；ON time for switch block S3, when switch block S1 turns on, switch block S3 turns off, at this moment the second switch terminal voltage of switch block S3 is higher than the voltage of its first switch terminals, when switch block S1 turns off, the voltage of first switch terminals of switch block S3 can rise, until the voltage of first switch terminals of switch block S3 is higher than the voltage of its second switch end, and at this moment switch block S3 conducting；Switch block S3 can include at least one diode being in parallel with its first switch terminals, second switch end or electric capacity.
The present invention enables to constant current and turns the efficiency of constant voltage changer and reach significantly high level；The present invention adopts switch block S1 as current switching parts, and then controls to flow to the current pulse width of load so that while meeting load energy requirement, without load, unwanted currents is transmitted directly to outlet circuit 2 with bypass mode.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention.
Claims (10)
1. constant current turns a constant voltage changer, and this constant current turns constant voltage changer and has inlet wire circuit and outlet circuit, and connects actual loading L in use, it is characterised in that described constant current turns constant voltage changer and includes switch block S1；First switch terminals of described switch block S1 connects inlet wire circuit and actual loading L one end, and the second switch end of described switch block S1 connects outlet circuit and the actual loading L other end；Maintain described constant current by regulating the dutycycle of described switch block S1 to turn the output voltage of constant voltage changer constant.
2. constant current according to claim 1 turns constant voltage changer, it is characterised in that described constant current turns constant voltage changer and also includes:
For regulating the controller C of described switch block S1 dutycycle；
And it is placed in the driving module D controlled between end of described controller C and described switch block S1；Described driving module D controls described switch block S1 conducting and the driving signal turned off for exporting according to the duty cycle adjustment signal of described controller C output.
3. constant current according to claim 2 turns constant voltage changer, it is characterised in that described constant current turns constant voltage changer and also includes:
It is connected with described controller C, for detecting the voltage detection module M that described constant current turns the output voltage of constant voltage changer；Described controller C generates the duty cycle adjustment signal of switch block S1 according to the output voltage value of feedback that output voltage set-point and described voltage detection module M detect.
4. constant current according to claim 3 turns constant voltage changer, it is characterised in that described constant current turns the switch block S2 that constant voltage changer also includes being serially connected between inlet wire circuit and actual loading L one end；Described switch block S2 connects described controller C via described driving module D；Being controlled by described controller C that described switch block S2 is in the conduction state or off state, when described switch block S1 turns on, described switch block S2 is off state, and when described switch block S1 turns off, described switch block S2 is in the conduction state.
5. the constant current according to claim 3 or 4 turns constant voltage changer, it is characterised in that described constant current turns constant voltage changer and also includes wave filter F1；The input of described wave filter F1 connects inlet wire circuit and outlet circuit；The outfan of described wave filter F1 and first switch terminals of described switch block S1, second switch end are in parallel.
6. constant current according to claim 5 turns constant voltage changer, it is characterised in that described constant current turns constant voltage changer and also includes wave filter F2；The input of described wave filter F2 is connected with the second switch end of the second switch end of switch block S2, switch block S1；The outfan of described wave filter F2 is in parallel with actual loading L two ends.
7. constant current according to claim 5 turns constant voltage changer, it is characterised in that described constant current turns the switch block S3 that constant voltage changer also includes being serially connected in outlet circuit and the actual loading L other end；When described switch block S1 turns on, described switch block S3 is off state, and when described switch block S1 turns off, described switch block S3 is in the conduction state.
8. a constant current turns constant voltage equipment, it is characterised in that described constant current turns the constant current that constant voltage equipment includes described at least two claim 1,2,3,4,6 or 7 and turns constant voltage changer.
9. constant current according to claim 8 turns constant voltage equipment, it is characterised in that the input that each described constant current turns constant voltage changer is serially connected and outfan is serially connected.
10. constant current according to claim 8 turns constant voltage equipment, it is characterised in that the input that each described constant current turns constant voltage changer is serially connected and outfan is parallel with one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239933.5A CN105763028A (en) | 2016-04-15 | 2016-04-15 | Constant-current to constant-voltage converter and constant-current to constant-voltage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239933.5A CN105763028A (en) | 2016-04-15 | 2016-04-15 | Constant-current to constant-voltage converter and constant-current to constant-voltage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105763028A true CN105763028A (en) | 2016-07-13 |
Family
ID=56335237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610239933.5A Pending CN105763028A (en) | 2016-04-15 | 2016-04-15 | Constant-current to constant-voltage converter and constant-current to constant-voltage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105763028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863876A (en) * | 2017-11-14 | 2018-03-30 | 大连泰思曼科技有限公司 | Constant current turns constant pressure converter and constant current turns constant-voltage equipment |
| CN109230552A (en) * | 2018-09-25 | 2019-01-18 | 苏州大学 | Constant pressure source is changed into the device and method of constant-current source control liquid metal movement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2395306Y (en) * | 1999-09-29 | 2000-09-06 | 深圳市中兴通讯股份有限公司 | Power converter with constant current and constant voltage output |
| US20100141495A1 (en) * | 2008-09-30 | 2010-06-10 | Ihp Gmbh - Innovations For High Performance Microelectronics / | Digital-Analog Converter |
| CN102158091A (en) * | 2011-03-11 | 2011-08-17 | 上海南麟电子有限公司 | Primary control constant current constant voltage converter |
| CN103354422A (en) * | 2013-07-22 | 2013-10-16 | 四川长虹欣锐科技有限公司 | Converting circuit for converting constant current source to constant voltage source |
| CN203660879U (en) * | 2014-01-09 | 2014-06-18 | 中国人民解放军海军工程大学 | Constant current/constant voltage converter based on PWM modulation |
| CN104967326A (en) * | 2015-07-15 | 2015-10-07 | 长城信息产业股份有限公司 | Single-line constant-current to constant-voltage electric energy conversion circuit |
-
2016
- 2016-04-15 CN CN201610239933.5A patent/CN105763028A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2395306Y (en) * | 1999-09-29 | 2000-09-06 | 深圳市中兴通讯股份有限公司 | Power converter with constant current and constant voltage output |
| US20100141495A1 (en) * | 2008-09-30 | 2010-06-10 | Ihp Gmbh - Innovations For High Performance Microelectronics / | Digital-Analog Converter |
| CN102158091A (en) * | 2011-03-11 | 2011-08-17 | 上海南麟电子有限公司 | Primary control constant current constant voltage converter |
| CN103354422A (en) * | 2013-07-22 | 2013-10-16 | 四川长虹欣锐科技有限公司 | Converting circuit for converting constant current source to constant voltage source |
| CN203660879U (en) * | 2014-01-09 | 2014-06-18 | 中国人民解放军海军工程大学 | Constant current/constant voltage converter based on PWM modulation |
| CN104967326A (en) * | 2015-07-15 | 2015-10-07 | 长城信息产业股份有限公司 | Single-line constant-current to constant-voltage electric energy conversion circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863876A (en) * | 2017-11-14 | 2018-03-30 | 大连泰思曼科技有限公司 | Constant current turns constant pressure converter and constant current turns constant-voltage equipment |
| CN107863876B (en) * | 2017-11-14 | 2020-07-07 | 大连泰思曼科技有限公司 | Converter for converting constant current into constant voltage and device for converting constant current into constant voltage |
| CN109230552A (en) * | 2018-09-25 | 2019-01-18 | 苏州大学 | Constant pressure source is changed into the device and method of constant-current source control liquid metal movement |
| CN109230552B (en) * | 2018-09-25 | 2021-06-15 | 苏州大学 | Device and method for controlling movement of liquid metal by converting constant voltage source into constant current source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10673324B2 (en) | Isolated converter with switched capacitors | |
| CN103715886B (en) | Four-switch buck/boost mode converter control method and control circuit | |
| CN102771039B (en) | DC/DC power-converting device | |
| CN102570810B (en) | The control circuit of switching regulaor and utilize the switching regulaor of this control circuit, electronic equipment | |
| CN104052275B (en) | System and method for the two-stage buck-boost converter with fast transient response | |
| CN105119489B (en) | A kind of Bidirectional up-down presses chopper circuit | |
| CN105262328B (en) | A kind of input filter on power electronic system | |
| CN103683919B (en) | High-power-factor low-harmonic-distortconstant constant current circuit and device | |
| CN104685777A (en) | Soft switching synchronous quasi resonant converter | |
| CN107786088A (en) | Power circuit, power supply circuit control method and storage medium | |
| CN109245539B (en) | Voltage superposition type boost circuit | |
| CN102222905B (en) | Plug-in multi-passage current sharing interface circuit | |
| CN107181409B (en) | Bidirectional isolation type multistage direct current-direct current electric energy conversion device and method thereof | |
| WO2016078350A1 (en) | Three-port convertor having integrated magnetic and zero-port current ripple | |
| CN106685242A (en) | Single-stage alternating current to direct current converter | |
| CN104201882A (en) | Non-isolated voltage-stabilization current-sharing circuit and power supply system | |
| CN105322798A (en) | Multipath output flyback converter | |
| CN105846661A (en) | Inrush current limiting circuit | |
| CN109088542A (en) | A kind of combined bidirectional DC transfer circuit | |
| CN103929066A (en) | Wide-range single-inductor multiple-output converter | |
| CN103647448A (en) | Integrated step-down-flyback type high power factor constant current circuit and device | |
| CN105763028A (en) | Constant-current to constant-voltage converter and constant-current to constant-voltage device | |
| CN105453400B (en) | Power supply unit | |
| CN107105543B (en) | A kind of backlight LED drive circuit | |
| CN112350583B (en) | Current type push-pull bridge type soft switch bidirectional direct current converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |