CN204517681U - Rectifier type regulating circuit - Google Patents
Rectifier type regulating circuit Download PDFInfo
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- CN204517681U CN204517681U CN201520237621.1U CN201520237621U CN204517681U CN 204517681 U CN204517681 U CN 204517681U CN 201520237621 U CN201520237621 U CN 201520237621U CN 204517681 U CN204517681 U CN 204517681U
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- bridge rectifier
- connects
- resistance
- operational amplifier
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Abstract
The utility model discloses a kind of rectifier type regulating circuit, wherein, VCC port comprises the positive port of VCC and VCC negative terminal mouth; The positive port of described VCC connects one end of inductance L 1 and the port 2 of bridge rectifier D 2 by insurance resistance FS simultaneously; The other end of described inductance L 1 connects the port 2 of bridge rectifier D1; The port one of described bridge rectifier D 2 connects the negative pole of diode D3 and the port one of bridge rectifier D 1 simultaneously; The port 4 of described bridge rectifier D 2 is connected with the port 4 of bridge rectifier D 1; The port 3 of described bridge rectifier D 1 connects the positive pole of diode D4 and the port 3 of bridge rectifier D 2 simultaneously; The utility model prevents the electricity on electric capacity from discharging and causes potential safety hazard to the person, and rectification effect is good, and without potential safety hazard, integral transformation precision is high, adopts full linear circuit, and minimum commutation voltage can be low to 0.01V.
Description
Technical field
The utility model relates to a kind of rectification circuit, specifically a kind of rectifier type regulating circuit.
Background technology
In input, often run into the problem of ac small signal being carried out to full-wave rectification conversion, usual circuit adopts diode as rectifier cell.Due to the non-linear behavior of diode own, need certain bias voltage (0.2V ~ 0.7V) to work, there is dead band.Then rectifying conversion work cannot be completed for the AC signal being less than 0.2V.
Utility model content
The purpose of this utility model is to provide a kind of without potential safety hazard, and rectification effect is good, the rectifier type regulating circuit that integral transformation precision is high, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of rectifier type regulating circuit, comprises bridge rectifier D 1, bridge rectifier D 2, VCC port, homophase input amplifier and anti-phase input amplifier; Wherein, VCC port comprises the positive port of VCC and VCC negative terminal mouth; The positive port of described VCC connects one end of inductance L 1 and the port 2 of bridge rectifier D 2 by insurance resistance FS simultaneously; The other end of described inductance L 1 connects the port 2 of bridge rectifier D1; The port one of described bridge rectifier D 2 connects the negative pole of diode D3 and the port one of bridge rectifier D 1 simultaneously; The port 4 of described bridge rectifier D 2 is connected with the port 4 of bridge rectifier D 1, and the port 4 of bridge rectifier D 1 connects VCC negative terminal mouth simultaneously; The port 3 of described bridge rectifier D 1 connects the positive pole of diode D4 and the port 3 of bridge rectifier D 2 simultaneously, and the port 3 of bridge rectifier D 2 also connects one end of electric capacity C1, and the other end of electric capacity C1 connects the positive pole of diode D3; The negative pole of described diode D4 connects Wiring port 1, and diode D3 is connected Wiring port 2 with the wiring point of electric capacity C1; Described electric capacity C3 shunt capacitance C2, resistance R0; Described bridge rectifier D 1, bridge rectifier D 2, diode D3, diode D4, electric capacity C1 and electric capacity C2 form rectification circuit; Described Wiring port 1 is the left end of contact resistance R1, the left end of resistance R3 simultaneously, the left end of contact resistance R6 while of Wiring port 2; The structure of described homophase input amplifier is that the right-hand member of resistance R1 is connected with the in-phase input end of operational amplifier A 1, the inverting input of operational amplifier A 1 is connected with the output of operational amplifier A 1, and the output of operational amplifier A 1 connects the positive port of VOUT by resistance R2; The concrete structure of described anti-phase input amplifier is that the right-hand member of resistance R3 is connected with the inverting input of operational amplifier A 2, the inverting input of operational amplifier A 2 is connected with the output of operational amplifier A 2 through resistance R4, and the output of operational amplifier A 2 connects the positive port of VOUT by resistance R5, and the right-hand member of the in-phase input end contact resistance R6 of operational amplifier A 2, and the in-phase input end of operational amplifier A 2 connects VOUT negative terminal mouth, the in-phase input end ground connection simultaneously of operational amplifier A 2.
Further: described inductance L 1 is core inductance.
Further: described resistance R0 is bleeder resistance.
Further: the voltage between described Wiring port 1, Wiring port 2 is Ui.
Further: the output voltage between the positive port of described VOUT, VOUT negative terminal mouth is Uo.
Further: described homophase input amplifier output voltage is U1.
Further: described reverse input amplifier output voltage is U2.
Compared with prior art, the beneficial effects of the utility model are:
1, in the utility model bleeder resistance after a loss of power, prevent the electricity on electric capacity from discharging and cause potential safety hazard to the person, the voltage of not releasing after power-off is just consumed by bleeder resistance, thus touches the safety of connection plug after guaranteeing user's power-off;
2, the utility model obtains output voltage Uo, if resistance R2 resistance equals resistance R5, then Uo=U1+U2 according to voltage superposition principle output voltage U1, output voltage U2 respectively by resistance R2, resistance R5 superposition; When input signal is at T0 ~ T1, Ui >=0, the output voltage U1=Ui of operational amplifier A 1, and the output voltage U2=0 of operational amplifier A 2, Uo=U1; When input signal is at T1 ~ T2, Ui≤0, the output voltage U1=0 of operational amplifier A 1, resistance R3 resistance equals R4, then the output voltage U2=-Ui of operational amplifier A 2, Uo=U2;
3, the utility model rectification effect is good, and without potential safety hazard, integral transformation precision is high, adopts full linear circuit, and minimum commutation voltage can be low to 0.01V.
Accompanying drawing explanation
Fig. 1 is the structural representation of rectifier type regulating circuit.
Fig. 2 is voltage input-output schematic diagram in rectifier type regulating circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 2, in the utility model embodiment, a kind of rectifier type regulating circuit, comprises bridge rectifier D 1, bridge rectifier D 2, VCC port, homophase input amplifier and anti-phase input amplifier; Wherein, VCC port comprises the positive port of VCC and VCC negative terminal mouth; The positive port of described VCC connects one end of inductance L 1 and the port 2 of bridge rectifier D 2 by insurance resistance FS simultaneously; Described inductance L 1 is core inductance, and sensibility reciprocal size is decided by alternating current size, serves power factor compensation effect, and the other end of inductance L 1 connects the port 2 of bridge rectifier D1; The port one of described bridge rectifier D 2 connects the negative pole of diode D3 and the port one of bridge rectifier D 1 simultaneously; The port 4 of described bridge rectifier D 2 is connected with the port 4 of bridge rectifier D 1 simultaneously, and the port 4 of bridge rectifier D 1 connects VCC negative terminal mouth simultaneously; The port 3 of described bridge rectifier D 1 connects the positive pole of diode D4 and the port 3 of bridge rectifier D 2 simultaneously, and the port 3 of bridge rectifier D 2 also connects one end of electric capacity C1, and the other end of electric capacity C1 connects the positive pole of diode D3; The negative pole of described diode D4 connects Wiring port 1, and diode D3 is connected Wiring port 2 with the wiring point of electric capacity C1, and wherein, the voltage between Wiring port 1, Wiring port 2 is Ui; Described electric capacity C3 shunt capacitance C2, resistance R0, wherein, resistance R0 is bleeder resistance, after its function is mainly user's power-off, prevent the electricity on electric capacity from discharging and potential safety hazard is caused to the person, had bleeder resistance, the voltage of not releasing after power-off is just consumed by bleeder resistance, thus touches the safety of connection plug after guaranteeing user's power-off; Described bridge rectifier D 1, bridge rectifier D 2, diode D3, diode D4, electric capacity C1 and electric capacity C2 form rectification circuit; Described Wiring port 1 is the left end of contact resistance R1, the left end of resistance R3 simultaneously, the left end of contact resistance R6 while of Wiring port 2; The structure of described homophase input amplifier is that the right-hand member of resistance R1 is connected with the in-phase input end of operational amplifier A 1, the inverting input of operational amplifier A 1 is connected with the output of operational amplifier A 1, and the output of operational amplifier A 1 connects the positive port of VOUT by resistance R2; The concrete structure of described anti-phase input amplifier is that the right-hand member of resistance R3 is connected with the inverting input of operational amplifier A 2, the inverting input of operational amplifier A 2 is connected with the output of operational amplifier A 2 through resistance R4, and the output of operational amplifier A 2 connects the positive port of VOUT by resistance R5, and the right-hand member of the in-phase input end contact resistance R6 of operational amplifier A 2, and the in-phase input end of operational amplifier A 2 connects VOUT negative terminal mouth, the in-phase input end ground connection simultaneously of operational amplifier A 2; Output voltage between the positive port of described VOUT, VOUT negative terminal mouth is Uo; Described homophase input amplifier (or voltage follower), its output voltage is U1; Described reverse input amplifier, its output voltage is U2; In work, obtain output voltage Uo, if resistance R2 resistance equals resistance R5, then Uo=U1+U2 according to voltage superposition principle output voltage U1, output voltage U2 respectively by resistance R2, resistance R5 superposition; When input signal is at T0 ~ T1, Ui >=0, the output voltage U1=Ui of operational amplifier A 1, and the output voltage U2=0 of operational amplifier A 2, Uo=U1; When input signal is at T1 ~ T2, Ui≤0, the output voltage U1=0 of operational amplifier A 1, resistance R3 resistance equals R4, then the output voltage U2=-Ui of operational amplifier A 2, Uo=U2; The utility model integral transformation precision is high, adopts full linear circuit, and minimum commutation voltage can be low to 0.01V.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (7)
1. a rectifier type regulating circuit, comprises bridge rectifier D 1, bridge rectifier D 2, VCC port, homophase input amplifier and anti-phase input amplifier; It is characterized in that, VCC port comprises the positive port of VCC and VCC negative terminal mouth; The positive port of described VCC connects one end of inductance L 1 and the port 2 of bridge rectifier D 2 by insurance resistance FS simultaneously; The other end of described inductance L 1 connects the port 2 of bridge rectifier D1; The port one of described bridge rectifier D 2 connects the negative pole of diode D3 and the port one of bridge rectifier D 1 simultaneously; The port 4 of described bridge rectifier D 2 is connected with the port 4 of bridge rectifier D 1, and the port 4 of bridge rectifier D 1 connects VCC negative terminal mouth simultaneously; The port 3 of described bridge rectifier D 1 connects the positive pole of diode D4 and the port 3 of bridge rectifier D 2 simultaneously, and the port 3 of bridge rectifier D 2 also connects one end of electric capacity C1, and the other end of electric capacity C1 connects the positive pole of diode D3; The negative pole of described diode D4 connects Wiring port 1, and diode D3 is connected Wiring port 2 with the wiring point of electric capacity C1; Described electric capacity C3 shunt capacitance C2, resistance R0; Described bridge rectifier D 1, bridge rectifier D 2, diode D3, diode D4, electric capacity C1 and electric capacity C2 form rectification circuit; Described Wiring port 1 is the left end of contact resistance R1, the left end of resistance R3 simultaneously, the left end of contact resistance R6 while of Wiring port 2; The structure of described homophase input amplifier is that the right-hand member of resistance R1 is connected with the in-phase input end of operational amplifier A 1, the inverting input of operational amplifier A 1 is connected with the output of operational amplifier A 1, and the output of operational amplifier A 1 connects the positive port of VOUT by resistance R2; The concrete structure of described anti-phase input amplifier is that the right-hand member of resistance R3 is connected with the inverting input of operational amplifier A 2, the inverting input of operational amplifier A 2 is connected with the output of operational amplifier A 2 through resistance R4, and the output of operational amplifier A 2 connects the positive port of VOUT by resistance R5, and the right-hand member of the in-phase input end contact resistance R6 of operational amplifier A 2, and the in-phase input end of operational amplifier A 2 connects VOUT negative terminal mouth, the in-phase input end ground connection simultaneously of operational amplifier A 2.
2. rectifier type regulating circuit according to claim 1, is characterized in that, described inductance L 1 is core inductance.
3. rectifier type regulating circuit according to claim 1, is characterized in that, described resistance R0 is bleeder resistance.
4. rectifier type regulating circuit according to claim 1, is characterized in that, the voltage between described Wiring port 1, Wiring port 2 is Ui.
5. rectifier type regulating circuit according to claim 1, is characterized in that, the output voltage between the positive port of described VOUT, VOUT negative terminal mouth is Uo.
6. rectifier type regulating circuit according to claim 1, is characterized in that, described homophase input amplifier output voltage is U1.
7. rectifier type regulating circuit according to claim 1, is characterized in that, described reverse input amplifier output voltage is U2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237621.1U CN204517681U (en) | 2015-04-17 | 2015-04-17 | Rectifier type regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237621.1U CN204517681U (en) | 2015-04-17 | 2015-04-17 | Rectifier type regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517681U true CN204517681U (en) | 2015-07-29 |
Family
ID=53715609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520237621.1U Expired - Fee Related CN204517681U (en) | 2015-04-17 | 2015-04-17 | Rectifier type regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204517681U (en) |
-
2015
- 2015-04-17 CN CN201520237621.1U patent/CN204517681U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160417 |