CN208386417U - Linear direct current regulated power supply circuit and power supply - Google Patents
Linear direct current regulated power supply circuit and power supply Download PDFInfo
- Publication number
- CN208386417U CN208386417U CN201820617279.1U CN201820617279U CN208386417U CN 208386417 U CN208386417 U CN 208386417U CN 201820617279 U CN201820617279 U CN 201820617279U CN 208386417 U CN208386417 U CN 208386417U
- Authority
- CN
- China
- Prior art keywords
- circuit
- driving
- connect
- power supply
- 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.)
- Active
Links
Landscapes
- Rectifiers (AREA)
Abstract
The utility model discloses a kind of linear direct current regulated power supply circuit and a kind of linear direct current regulated power supply circuit of power supply, and wherein the linear direct current regulated power supply circuit includes rectification circuit, driving power, drive control circuit, driving circuit and switching circuit；Wherein, rectification circuit, for being rectified to the alternating current of input；Driving power, the voltage for being exported according to rectification circuit generate driving voltage；Drive control circuit is used for shutdown or on-state drive circuit, and the output voltage of configuration switch circuit；In the conducting of drive control circuit driving circuit, the output end of driving power and the control terminal of switching circuit are connected, switching circuit conducting, to export predeterminated voltage；In the shutdown of drive control circuit driving circuit, the output end of driving power and the control terminal of switching circuit are disconnected, switching circuit shutdown, to stop exporting predeterminated voltage.Technical solutions of the utility model small volume, lower-cost power supply.
Description
Technical field
The utility model relates to power technique fields, in particular to a kind of linear direct current regulated power supply circuit and power supply.
Background technique
Traditional non-isolation type small-power power, it is general using high pressure Buck circuit will input high pressure be converted to it is stable low
Pressure.
In smart homes application fields such as LED switch controls, need to supply electricity to small-power module such as bluetooth module using city
It is powered, it is desirable that the design of small size.Such product, which usually exports electric current only, to be needed to use high pressure between ten a few to tens of milliamperes
Buck power supply then designs surplus: Buck circuit needs device to be used more, and working frequency is usually in 100kHz or more, electricity
Magnetic disturbance problem is difficult, needs to increase EMI device, so that relative volume is larger, it is at high cost, it can not meet the demand of application.
Utility model content
The main purpose of the utility model is to provide a kind of linear direct current regulated power supply circuit, it is desirable to provide a kind of volume compared with
Small, lower-cost power supply.
To achieve the above object, the utility model proposes linear direct current regulated power supply circuit include that a kind of linear DC is steady
Piezoelectricity source circuit, which is characterized in that including rectification circuit, driving power, drive control circuit, driving circuit and switching circuit,
The input terminal and the switching circuit of the output end of the rectification circuit and the input terminal of the driving power, drive control circuit
Input terminal be separately connected；The output end of the driving power is connect with the input terminal of the driving circuit；The drive control
The output end of circuit is connect with the control terminal of the driving circuit, the control of the output end of the driving circuit and the switching circuit
End connection processed, the output end of the switching circuit and load connect；One end of the filter circuit is defeated with the switching circuit
Outlet connection, the other end ground connection of the filter circuit；Wherein,
The rectification circuit, for being rectified to the alternating current of input；
The driving power, the voltage for being exported according to the rectification circuit generate driving voltage；
The drive control circuit for turning off or being connected the driving circuit, and sets the defeated of the switching circuit
Voltage out；
In drive control circuit driving circuit conducting, the output end of the driving power and switch electricity
The control terminal on road is connected to, the switching circuit conducting, to export predeterminated voltage；In the drive control circuit driving circuit
When shutdown, the control terminal of the output end of the driving power and the switching circuit is disconnected, the switching circuit shutdown, to stop
Export predeterminated voltage.
Preferably, the linear direct current regulated power supply circuit further includes filter circuit, and the filter circuit is to switching circuit
The power supply of output is exported again after being filtered to load.
Preferably, the drive control circuit includes first resistor and second resistance, the first end of the first resistor with
The output end of the rectification circuit connects, and the second end of the first resistor is connect with the first end of the second resistance, described
The second end of second resistance is grounded, and the first end of the second resistance is also connect with the control terminal of the driving circuit.
Preferably, the driving circuit includes 3rd resistor, the first triode and the second triode, the 3rd resistor
First end is connect with the output end of the driving power, and the base stage of the second end of the 3rd resistor and first triode connects
Connect, the collector of first triode is connect with the first end of the 3rd resistor, the emitter of first triode with
The collector of second triode connects；The collector of second triode is connect with the base stage of first triode,
The emitter of second triode is grounded, and the base stage of second triode and the output end of the drive control circuit connect
It connects；The emitter of first triode is also connect with the control terminal of the switching circuit.
Preferably, the driving circuit further includes first diode, the anode of the first diode and the described 1st
The emitter of pole pipe connects, and the cathode of the first diode is connect with the collector of second triode.
Preferably, the driving power includes the 4th resistance, the first voltage-stabiliser tube and first capacitor；The of 4th resistance
One end is connect with the output end of the rectification circuit, and the second end of the 4th resistance and the cathode of first voltage-stabiliser tube connect
It connects, the plus earth of first voltage-stabiliser tube；The first end of the first capacitor is connect with the cathode of first voltage-stabiliser tube, institute
The first end for stating first capacitor is also connect with the input terminal of the driving circuit, the second end ground connection of the first capacitor.
Preferably, the switching circuit includes the second diode and the first metal-oxide-semiconductor, the anode of second diode and institute
The output end connection of rectification circuit is stated, the cathode of second diode is connect with the drain electrode of first metal-oxide-semiconductor, and described first
The source electrode of metal-oxide-semiconductor and load connect, and the grid of first metal-oxide-semiconductor is connect with the output end of the driving circuit.
Preferably, the rectification circuit is rectifier bridge stack.
To achieve the above object, the utility model also proposes a kind of linear direct current regulated power supply, the linear DC pressure stabilizing
Power supply includes linear direct current regulated power supply circuit as described above.The linear direct current regulated power supply circuit includes a kind of linear DC
Voltage-stabilized power supply circuit, which is characterized in that including rectification circuit, driving power, drive control circuit, driving circuit and switch electricity
Road, the output end of the rectification circuit and the input terminal of the driving power, the input terminal and the switch of drive control circuit
The input terminal of circuit is separately connected；The output end of the driving power is connect with the input terminal of the driving circuit；The driving
The output end of control circuit is connect with the control terminal of the driving circuit, the output end of the driving circuit and the switching circuit
Control terminal connection, the output end of the switching circuit and load connect；One end of the filter circuit and the switching circuit
Output end connection, the filter circuit the other end ground connection；Wherein, the rectification circuit, for the alternating current to input into
Row rectification；The driving power, the voltage for being exported according to the rectification circuit generate driving voltage；The drive control electricity
Road for turning off or being connected the driving circuit, and sets the output voltage of the switching circuit；In the drive control electricity
When road controls driving circuit conducting, the output end of the driving power is connected to the control terminal of the switching circuit, the switch
Circuit conducting, to export predeterminated voltage；The drive control circuit driving circuit shutdown when, the driving power it is defeated
Outlet and the control terminal of the switching circuit disconnect, the switching circuit shutdown, to stop exporting predeterminated voltage.
Technical solutions of the utility model are by setting rectification circuit, driving power, drive control circuit, driving circuit and open
Powered-down road forms a kind of linear direct current regulated power supply circuit.Rectification circuit is driving power, drive control circuit and switch electricity
It is in periodically variable power supply, the size of drive control circuit configuration switch circuit output voltage, and according to whole that road, which provides voltage,
The voltage of current circuit input, controls driving circuit on or off, to control the driving voltage of output to switching circuit.It is driving
When dynamic circuit conducting, the driving power provides driving voltage for switching circuit, and switching circuit exports predeterminated voltage.In driving electricity
When road turns off, switching circuit stops output predeterminated voltage.In this way, realizing, one kind is small in size, lower-cost linear DC is steady
Piezoelectricity source circuit.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the functional block diagram of one embodiment of the utility model linear direct current regulated power supply circuit；
Fig. 2 is the electrical block diagram of one embodiment of the utility model linear direct current regulated power supply circuit.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Rectification circuit | R1~R4 | First resistor~the 4th resistance |
| 200 | Driving circuit | C1 | First capacitor |
| 300 | Drive control circuit | Cs | Filter capacitor |
| 400 | Driving circuit | D1 | First diode |
| 500 | Switching circuit | D2 | Second diode |
| Q1 | First triode | ZD1 | First voltage-stabiliser tube |
| Q2 | Second triode | M1 | First metal-oxide-semiconductor |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution
Occur it is conflicting or when cannot achieve should people think that the combination of this technical solution is not present, also do not wanted in the utility model
Within the protection scope asked.
The utility model proposes a kind of linear direct current regulated power supply circuits.
Referring to Fig.1, in the utility model embodiment, which includes rectification circuit 100, drives
Dynamic power supply 200, drive control circuit 300, driving circuit 400 and switching circuit 500.Specifically, the rectification circuit 100 is defeated
The input of outlet and the input terminal of the driving power 200, the input terminal and the switching circuit 500 of drive control circuit 300
End is separately connected；The output end of the driving power 200 is connect with the input terminal of the driving circuit 400；The drive control
The output end of circuit 300 is connect with the control terminal of the driving circuit 400, and the output end of the driving circuit 400 is opened with described
The control terminal on powered-down road 500 connects, and the output end of the switching circuit 500 and load connect；One end of the filter circuit with
The output end of the switching circuit 500 connects, the other end ground connection of the filter circuit.
The rectification circuit 100, for the alternating current of input to be rectified to obtain voltage to be in periodically variable power supply,
Power supply after rectification is exported to the driving power 200, the drive control circuit 300 and the switching circuit 500.
In the present embodiment, which uses rectifier bridge stack, and rectifier bridge stack is to make bridge-type by four rectification silicon chips
Connection, the north material of external application insulation encapsulate, and power rectifier bridge adds the encapsulating of zinc metal-back, enhancing heat dissipation outside insulating layer.It is whole
Stream bridge heap has the advantages that small in size, temperature rise is low.In this way, may make the volume of entire linear direct current regulated power supply circuit further
Become smaller.
The driving power 200, the voltage for being exported according to the rectification circuit 100 generate driving voltage.Switch electricity
Road 500 includes power tube, and power tube can be the switching tubes such as IGBT, MOS.Driving power 200 provides needed for driving for power tube
Voltage.
The drive control circuit 300 for turning off or being connected the driving circuit 400, and sets the switch electricity
The output voltage on road 500；When the drive control circuit 300 control driving circuit 400 is connected, the driving power 200
Output end is connected to the control terminal of the switching circuit 500, and the switching circuit 500 is connected, to export predeterminated voltage；Described
When drive control circuit 300 controls the shutdown of driving circuit 400, the output end of the driving power 200 and the switching circuit 500
Control terminal disconnect, the switching circuit 500 turns off, to stop exporting predeterminated voltage.
In the present embodiment, rectification circuit 100 is using rectifier bridge stack.The rear output of rectified bridge heap rectification is steamed bun
Wave mode voltage.Steamed bun wave mode voltage be in cyclically-varying, when rectifier bridge stack rectification after output voltage by drive control electricity
After road 300 carries out voltage division processing, in output to driving circuit 400.300 output voltage of drive control circuit is greater than or equal to driving
When the cut-in voltage of circuit 400, driving circuit 400 is connected, the control terminal of 200 output voltage of driving power to switching circuit 500,
Switching circuit 500 is connected, output predeterminated voltage to load.300 output voltage of drive control circuit is less than opening for driving circuit 400
When opening voltage, driving circuit 400 is turned off, and switching circuit 500 stops output.
Technical solutions of the utility model pass through setting rectification circuit 100, driving power 200, drive control circuit 300, drive
Dynamic circuit 400 and switching circuit 500, form a kind of linear direct current regulated power supply circuit.Rectification circuit 100 is driving power
200, it is in periodically variable power supply that drive control circuit 300 and switching circuit 500, which provide voltage, and drive control circuit 300 is set
The voltage determining the size of 500 output voltage of switching circuit, and being inputted according to rectification circuit 100, the conducting of control driving circuit 400 or
Shutdown, to control the driving voltage of output to switching circuit 500.When driving circuit 400 is connected, the driving power 200
Driving voltage is provided for switching circuit 500, switching circuit 500 exports predeterminated voltage.When driving circuit 400 turns off, switch electricity
Road 500 stops output predeterminated voltage.In this way, realizing a kind of small in size, lower-cost linear direct current regulated power supply circuit.
Further, referring to Fig. 2, the linear direct current regulated power supply circuit further includes filter circuit (figure does not indicate), institute
It states after the power supply that filter circuit exports switching circuit 500 is filtered and is exported again to load.
In the present embodiment, filter circuit includes filter capacitor Cs.One end of filter capacitor Cs and the output of switching circuit 500
End connection, the other end ground connection of filter capacitor Cs.
Specifically, the drive control circuit 300 includes first resistor R1 and second resistance R2, the first resistor R1's
First end is connect with the output end of the rectification circuit 100, and the second end of the first resistor R1 is with the second resistance R2's
First end connection, the second resistance R2 second end ground connection, the first end of the second resistance R2 also with the driving circuit
400 control terminal connection.
It should be noted that first resistor R1 and second resistance R2 is partial pressure sample resistance, the voltage of second resistance R2 with
100 output voltage of rectification circuit changes and proportional variation.
Specifically, the driving circuit 400 includes 3rd resistor R3, the first triode Q1 and the second triode Q2, described
The first end of 3rd resistor R3 is connect with the output end of the driving power 200, the second end of the 3rd resistor R3 with it is described
The base stage of first triode Q1 connects, and the collector of the first triode Q1 is connect with the first end of the 3rd resistor R3,
The emitter of the first triode Q1 is connect with the collector of the second triode Q2；The current collection of the second triode Q2
Pole is connect with the base stage of the first triode Q1, the emitter ground connection of the second triode Q2, the second triode Q2
Base stage connect with the output end of the drive control circuit 300；The emitter of the first triode Q1 also with the switch
The control terminal of circuit 500 connects.
In the present embodiment, the first triode Q1 and the second triode Q2 are PNP type triode.When driving power 200 is defeated
When voltage out is greater than the conducting voltage of the first triode Q1, the first triode Q1 conducting, driving power 200 is switch electricity at this time
Road 500 provides driving voltage.When the second triode Q2 conducting, the base voltage of the first triode Q1 is pulled low to zero, first
Triode Q1 shutdown, the stopping of driving power 200 give switching circuit 500 outputting drive voltage.
Specifically, the driving circuit 400 further includes first diode D1, the anode of the first diode D1 with it is described
The emitter of first triode Q1 connects, and the collector of the cathode of the first diode D1 and the second triode Q2 connect
It connects.
The effect of first diode D1 is, in the second triode Q2 conducting that the first triode Q1 output voltage is rapid
0v is discharged into, so that the first metal-oxide-semiconductor M1 is rapidly switched off specifically, the driving power 200 includes the 4th resistance R4, the first pressure stabilizing
Pipe ZD1 and first capacitor C1；The first end of the 4th resistance R4 is connect with the output end of the rectification circuit 100, and described
The second end of four resistance R4 is connect with the cathode of the first voltage-stabiliser tube ZD1, the plus earth of the first voltage-stabiliser tube ZD1；Institute
The first end for stating first capacitor C1 is connect with the cathode of the first voltage-stabiliser tube ZD1, the first end of the first capacitor C1 also with
The input terminal of the driving circuit 400 connects, the second end ground connection of the first capacitor C1.
When input starting, 100 output voltage of rectification circuit charges to first capacitor C1 by the 4th resistance R4, first capacitor
The voltage of C1 is clamped when rising to the voltage of voltage regulation of the first voltage-stabiliser tube ZD1, clamp voltage VZD1 > Vout+Vth, Vth first
Metal-oxide-semiconductor M1VgS conducting voltage threshold value.
Specifically, the switching circuit 500 includes the second diode D2 and the first metal-oxide-semiconductor M1, the second diode D2
Anode connect with the output end of the rectification circuit 100, the cathode of the second diode D2 and the first metal-oxide-semiconductor M1's
Drain electrode connection, the source electrode of the first metal-oxide-semiconductor M1 and load connect, the grid and the driving circuit of the first metal-oxide-semiconductor M1
400 output end connection.
In the present embodiment, the effect of the second diode D2 is that preventing the voltage of load from instead filling is back in power supply.First MOS
There is parasitic diode in pipe M1, when generating very big moment reverse current in circuit, so that it may pass through this parasitic diode
Export, protects the pole D and the pole S of metal-oxide-semiconductor.
To sum up, physical circuit figure is first combined, the technical solution of the utility model is further elaborated:
When rectification circuit 100, which inputs, to be started, 100 output voltage HV of rectification circuit is by the 4th resistance R4 to first capacitor
C1 charging, first capacitor C1 voltage are clamped when rising to the voltage of voltage regulation of the first voltage-stabiliser tube ZD1, clamp voltage VZD1 > Vout+
Vth, Vout are 500 output voltage of switching circuit, and Vth is the first metal-oxide-semiconductor M1Vgs conducting voltage threshold value.
First resistor R1 and second resistance R2 in drive control circuit 300 are partial pressure sample resistance, second resistance R2 two
The voltage at end changes and proportional variation with 100 output voltage of rectification circuit, when the voltage of second resistance R2 is lower than the two or three pole
When pipe Q2 conducting voltage Vbe, the second triode Q2 shutdown, the output voltage Vout ≈ Vbe* (1+R1/R2) of switching circuit 500；
When the both end voltage of second resistance R2 is higher than Vbe, the second triode Q2 conducting, switching circuit 500 is turned off, switching circuit 500
Output voltage Vout slowly declined by the voltage of filter capacitor Cs.
First capacitor C1 by 3rd resistor R3 be given to the first triode Q1be foot be high level when, the first triode Q1 is led
Logical, the energy of first capacitor C1 is powered by the first triode Q1 to the control terminal of switching circuit 500, so that power tube is led
It is logical.When second triode Q2 is connected, the base stage of the first triode Q1 is pulled low rapidly, the first triode Q1 shutdown, the first metal-oxide-semiconductor
M1 grid voltage Vg discharges into that zero, Vgs is reverse-biased, and the first metal-oxide-semiconductor M1 is closed rapidly by first diode D1 to the second triode Q2
It is disconnected；Second triode Q2 shutdown, the first metal-oxide-semiconductor M1 is connected in 400 normal driving of driving circuit at this time.
The utility model also proposes a kind of linear direct current regulated power supply, which includes that linear DC is steady
Piezoelectricity source circuit, the specific structure of the linear direct current regulated power supply circuit is referring to above-described embodiment, due to the pressure stabilizing of this linear DC
Power supply uses whole technical solutions of above-mentioned all embodiments, therefore at least the technical solution with above-described embodiment is brought
All beneficial effects, this is no longer going to repeat them.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (9)
1. a kind of linear direct current regulated power supply circuit, which is characterized in that including rectification circuit, driving power, drive control circuit,
Driving circuit and switching circuit, the input terminal of the output end of the rectification circuit and the driving power, drive control circuit
The input terminal of input terminal and the switching circuit is separately connected；The input of the output end of the driving power and the driving circuit
End connection；The output end of the drive control circuit is connect with the control terminal of the driving circuit, the output of the driving circuit
End is connect with the control terminal of the switching circuit, and the output end of the switching circuit and load connect；Wherein,
The rectification circuit, for being rectified to the alternating current of input；
The driving power, the voltage for being exported according to the rectification circuit generate driving voltage；
The drive control circuit for turning off or being connected the driving circuit, and sets the output electricity of the switching circuit
Pressure；
In drive control circuit driving circuit conducting, the output end of the driving power and the switching circuit
Control terminal connection, the switching circuit conducting, to export predeterminated voltage；It is turned off in the drive control circuit driving circuit
When, the control terminal of the output end of the driving power and the switching circuit disconnects, the switching circuit shutdown, to stop exporting
Predeterminated voltage.
2. linear direct current regulated power supply circuit as described in claim 1, which is characterized in that the linear direct current regulated power supply electricity
Road further includes filter circuit, and the power supply that the filter circuit exports switching circuit is exported again after being filtered to load.
3. linear direct current regulated power supply circuit as described in claim 1, which is characterized in that the drive control circuit includes the
One resistance and second resistance, the first end of the first resistor are connect with the output end of the rectification circuit, the first resistor
Second end connect with the first end of the second resistance, the second end of second resistance ground connection, the of the second resistance
One end is also connect with the control terminal of the driving circuit.
4. linear direct current regulated power supply circuit as described in claim 1, which is characterized in that the driving circuit includes third electricity
Resistance, the first triode and the second triode, the first end of the 3rd resistor is connect with the output end of the driving power, described
The second end of 3rd resistor is connect with the base stage of first triode, the collector of first triode and third electricity
The first end of resistance connects, and the emitter of first triode is connect with the collector of second triode；Described 2nd 3
The collector of pole pipe is also connect with the base stage of first triode, the emitter ground connection of second triode, and described second
The base stage of triode is connect with the output end of the drive control circuit；The emitter of first triode also with the switch
The control terminal of circuit connects.
5. linear direct current regulated power supply circuit as claimed in claim 4, which is characterized in that the driving circuit further includes first
Diode, the anode of the first diode are connect with the emitter of first triode, the cathode of the first diode
It is connect with the collector of second triode.
6. linear direct current regulated power supply circuit as described in claim 1, which is characterized in that the driving power includes the 4th electricity
Resistance, the first voltage-stabiliser tube and first capacitor；The first end of 4th resistance is connect with the output end of the rectification circuit, and described
The second end of four resistance is connect with the cathode of first voltage-stabiliser tube, the plus earth of first voltage-stabiliser tube；First electricity
The first end of appearance is connect with the cathode of first voltage-stabiliser tube, and the first end of the first capacitor is also defeated with the driving circuit
Enter end connection, the second end ground connection of the first capacitor.
7. linear direct current regulated power supply circuit as described in claim 1, which is characterized in that the switching circuit includes the two or two
The anode of pole pipe and the first metal-oxide-semiconductor, second diode is connect with the output end of the rectification circuit, second diode
Cathode connect with the drain electrode of first metal-oxide-semiconductor, the source electrode of first metal-oxide-semiconductor and load connect, first metal-oxide-semiconductor
Grid is connect with the output end of the driving circuit.
8. the linear direct current regulated power supply circuit as described in any one of claim 1 to 2, which is characterized in that the rectification
Circuit is rectifier bridge stack.
9. a kind of linear direct current regulated power supply, which is characterized in that the linear direct current regulated power supply includes such as claim 1 to 8
Any one of described in linear direct current regulated power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820617279.1U CN208386417U (en) | 2018-04-26 | 2018-04-26 | Linear direct current regulated power supply circuit and power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820617279.1U CN208386417U (en) | 2018-04-26 | 2018-04-26 | Linear direct current regulated power supply circuit and power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208386417U true CN208386417U (en) | 2019-01-15 |
Family
ID=64972995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820617279.1U Active CN208386417U (en) | 2018-04-26 | 2018-04-26 | Linear direct current regulated power supply circuit and power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208386417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411009A (en) * | 2021-06-28 | 2021-09-17 | 石河子大学 | Self-powered inductance synchronous switch piezoelectric energy acquisition circuit |
-
2018
- 2018-04-26 CN CN201820617279.1U patent/CN208386417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411009A (en) * | 2021-06-28 | 2021-09-17 | 石河子大学 | Self-powered inductance synchronous switch piezoelectric energy acquisition circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102405585B (en) | PFC booster circuit | |
| CN102484426B (en) | DC power supply feeding system | |
| CN205792282U (en) | Rectification circuit | |
| CN104270013B (en) | Boost automatic match circuit and intelligence travelling power supply change-over device | |
| CN107104582A (en) | A kind of complementary drive signals generation circuit with transformer isolation | |
| CN106604481A (en) | LED linear constant current soft start drive circuit | |
| CN106879147A (en) | A kind of single live wire total power touch switch circuit | |
| CN208386417U (en) | Linear direct current regulated power supply circuit and power supply | |
| CN202997919U (en) | Ripple suppression circuit and power supply system thereof | |
| CN208849457U (en) | Power supply switch circuit and multiple-way feed system | |
| CN204258608U (en) | Ripple suppression circuit and circuit system comprising same | |
| CN103096595A (en) | Light emitting diode (LED) drive circuit | |
| CN105406714B (en) | A kind of DC-DC converter integrated circuit and its application circuit | |
| CN208352968U (en) | A kind of PFC overvoltage crowbar and device | |
| CN207369369U (en) | LED power and LED display device | |
| CN208461685U (en) | A kind of novel grid stage drive circuit device | |
| CN204721240U (en) | A kind of switching power circuit | |
| CN209313807U (en) | Electric charge recycling circuit, power supply circuit and switching power circuit system | |
| CN209120507U (en) | A kind of LED linear constant-flow driver | |
| CN207573225U (en) | Switch converters switching node power-supply circuit | |
| CN206686079U (en) | Booster circuit | |
| CN207410244U (en) | A kind of double winding power circuit | |
| CN110474408A (en) | A kind of power circuit | |
| CN206585782U (en) | A kind of microwave oven supply power circuit and micro-wave oven | |
| CN202172361U (en) | DC electronic partial pressure regulator utilizing capacitance pressure equalizing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |