CN207603442U - A kind of DC load timing shutdown circuit - Google Patents
A kind of DC load timing shutdown circuit Download PDFInfo
- Publication number
- CN207603442U CN207603442U CN201721854103.XU CN201721854103U CN207603442U CN 207603442 U CN207603442 U CN 207603442U CN 201721854103 U CN201721854103 U CN 201721854103U CN 207603442 U CN207603442 U CN 207603442U
- Authority
- CN
- China
- Prior art keywords
- diode
- capacitance
- resistance
- cathode
- circuit
- 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.)
- Expired - Fee Related
Links
Landscapes
- Rectifiers (AREA)
Abstract
The utility model discloses a kind of DC load timing shutdown circuits, and including AC DC conversion circuits, delay control circuit and switch motion circuit, the AC DC conversion circuits connect delay control circuit, and delay control circuit is also connected with switch motion circuit.The utility model DC load timing shutdown circuit uses the ac-dc converter with anti-interference function to power, switch control device is formed by voltage comparator and triode in circuit, the function of automatic shutdown is realized using the charge-discharge characteristic of capacitance, and electric energy is no longer consumed after automatic shutdown, therefore have the advantages that at low cost, easy to use and performance is stablized.
Description
Technical field
The utility model is related to a kind of timing control circuit, specifically a kind of DC load timing shutdown circuit.
Background technology
With the development of science and technology, be unableing to do without various electronic equipments in daily life, it can give people's
Life brings great convenience, these electronic equipments are required for supplying using electric energy, and for some electronic equipments, people make
Often easily forget to turn off switch, such as multimeter, batheroom scale etc. later with completion, lead to wasting for electric energy, not only increase
Add use cost, and bring big inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of DC load timing shutdown circuit, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical solution：
A kind of DC load timing shutdown circuit, including AC-DC conversion circuits, delay control circuit and switch motion electricity
Road, the AC-DC conversion circuits connect delay control circuit, and delay control circuit is also connected with switch motion circuit.
Preferred embodiment as the utility model：The AC-DC conversion circuits include step-down transformer W, by diode D3-
The armature winding connection 220V of bridge type rectification circuit, pi type filter circuit and the zener diode D7 of D6 compositions, transformer W are handed over
Galvanic electricity, the anode of secondary windings one end connection diode D5 of transformer W and the cathode of diode D6, transformer W it is secondary around
The anode of group other end connection diode D3 and the cathode of diode D4, the cathode of the cathode connection diode D5 of diode D3,
The other end of capacitance C3 and inductance L1, inductance L1 connect capacitance C2, the cathode of diode D7 and DC voltage VCC, diode D4
The anode of anode connection diode D6, the other end of capacitance C3 and inductance L2, inductance L2 other end connection capacitance C2 it is another
One end, the anode of diode D7 and ground terminal GND.
Preferred embodiment as the utility model：The pi type filter circuit include capacitance C2, capacitance C3, inductance L1 and
Inductance L2.
Preferred embodiment as the utility model：The delay control circuit includes linked switch S1, capacitance C1 and chip
IC1, switch motion circuit includes triode V1, triode V2 and diode D2, the not movable contact 1 of the linked switch S1 connect
Not movable contact 2 of linked switch S1, the movable contact 3 of linked switch S1 connect capacitance C4 and DC voltage VCC, linked switch S1's
Movable contact 4 connects capacitance C1, and the not movable contact 5 of linked switch S1 connects the emitter of resistance R2 and triode V1, linked switch
The not movable contact 6 of S1 connects the pin 3 of the anode of diode D1, resistance R1 and chip IC 1, the other end connection resistance of resistance R1
R3, the other end of capacitance C1, the cathode of diode D2, the pin 5 of chip IC 1, the cathode of power supply E and load A, diode D1's
The pin 2 of cathode connection chip IC 1, the collector of triode V1 and the other end for loading A, the base stage connection resistance of triode V1
The other end of other end connection resistance R3 of R5, resistance R2 and the pin 1 of chip IC 1, the pin 4 of chip IC 1 connect resistance R4,
The base stage of the other end connecting triode V2 of resistance R4, the anode of the emitter connection diode D2 of triode V2.
Preferred embodiment as the utility model：The model LM321 of the chip IC 1.
Preferred embodiment as the utility model：The diode D2 is light emitting diode.
Preferred embodiment as the utility model：The diode D7 is zener diode.
Compared with prior art, the beneficial effects of the utility model are：The utility model DC load timing shutdown circuit
It is powered using the ac-dc converter with anti-interference function, switch controller is formed by voltage comparator and triode in circuit
Part, the function of automatic shutdown is realized using the charge-discharge characteristic of capacitance, and electric energy is no longer consumed after automatic shutdown, therefore
Have the advantages that at low cost, easy to use and performance is stablized.
Description of the drawings
Fig. 1 is the circuit diagram of DC load timing shutdown circuit.
Fig. 2 is the circuit diagram of AC-DC conversion circuits.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Please refer to Fig.1-2, in the utility model embodiment, a kind of DC load timing shutdown circuit is converted including AC-DC
Circuit, delay control circuit and switch motion circuit, the AC-DC conversion circuits include step-down transformer W, by diode D3-
Bridge type rectification circuit, pi type filter circuit and the zener diode D7 of D6 compositions, the delay control circuit include linked switch
S1, capacitance C1 and chip IC 1, switch motion circuit include triode V1, triode V2 and diode D2, the pi type filter
Circuit includes capacitance C2, capacitance C3, inductance L1 and connects 220V alternating currents with the armature winding of inductance L2 transformers W, transformer W's
The anode of secondary windings one end connection diode D5 and the cathode of diode D6, the secondary windings other end connection two of transformer W
The anode of pole pipe D3 and the cathode of diode D4, cathode, capacitance C3 and the inductance L1 of the cathode connection diode D5 of diode D3,
The other end of inductance L1 connects the anode connection diode of capacitance C2, the cathode of diode D7 and DC voltage VCC, diode D4
The other end of the other end connection capacitance C2 of the anode of D6, the other end of capacitance C3 and inductance L2, inductance L2, the sun of diode D7
Not movable contact 2 of the not movable contact 1 of pole and ground terminal GND, the linked switch S1 connection linked switch S1, linked switch S1's
Movable contact 3 connects capacitance C4 and DC voltage VCC, and the movable contact 4 of linked switch S1 connects capacitance C1, and linked switch S1's is motionless
Contact 5 connects the emitter of resistance R2 and triode V1, and the not movable contact 6 of linked switch S1 connects anode, the electricity of diode D1
Hinder the pin 3 of R1 and chip IC 1, the other end connection resistance R3 of resistance R1, the other end of capacitance C1, diode D2 cathode,
The cathode connection pin 2 of chip IC 1 of the pin 5 of chip IC 1, the cathode of power supply E and load A, diode D1, triode V1
The other end of collector and load A, the other end connection resistance R3's of base stage connection the resistance R5, resistance R2 of triode V1 is another
End and the pin 1 of chip IC 1, the connection resistance R4 of pin 4 of chip IC 1, the base stage of the other end connecting triode V2 of resistance R4,
The anode of the emitter connection diode D2 of triode V2.
The operation principle of the utility model is：Power pack circuit is as shown in Fig. 2, the transformer W in figure is downconverter
Device, for being depressured to alternating current, diode D3-D7 carries out rectification to circuit, and pi type filter can eliminate the harmonic wave in alternating current
Interference, zener diode D7 is for stabilizing the output voltage VCC, in normal shutdown, 1,2,3,4 contacts of the switch S1 in Fig. 1
It connects, power supply E charges to capacitance C1 by contact.During booting, 3,4,5,6 contactings of S1 are switched, are C1 first by two
Pole pipe D1 provides a working power to voltage comparator chip IC 1, at this time because of the voltage of 1 in-phase input end of chip IC, 3 foot
Higher than 1 foot of inverting input, so its 4 foot of output terminal exports high level, V2 base stages must conduct, and V1 is also followed by conducting, electricity
Pond provides power supply by triode V1 to chip IC 1 and load A.The voltage of D1 anodes is higher than negative terminal at this time, and C1 is no longer with giving
LM358 provides power supply, but is slowly discharged by R1, when voltage is discharged into less than LM358 1 feet of inverting input, comparator
Overturning, 4 feet output low level, V2 cut-offs, V1 also follow cut-off, and chip IC 1 and load A cannot get power supply and be stopped,
Realize automatic shut-off function.
The design is the design carried out for existing delay controller internal circuit, only need to be by this when producing and using
Circuit diagram is fabricated to pcb board, you can normal use, the manufacturing process of pcb board belong to the prior art, therefore do not repeat herein.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that by containing in the equivalent requirements of the claims is fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of DC load timing shutdown circuit, including AC-DC conversion circuits, delay control circuit and switch motion circuit,
It is characterized in that, the AC-DC conversion circuits connection delay control circuit, delay control circuit are also connected with switch motion circuit.
2. DC load timing shutdown circuit according to claim 1, which is characterized in that the AC-DC conversion circuits packet
Step-down transformer W, the bridge type rectification circuit, pi type filter circuit and the zener diode D7 that are made of diode D3-D6 are included, is become
The armature winding connection 220V alternating currents of depressor W, the anode and diode of secondary windings one end connection diode D5 of transformer W
The cathode of D6, the anode of secondary windings other end connection diode D3 of transformer W and the cathode of diode D4, diode D3's
The other end connection capacitance C2 of cathode, capacitance C3 and the inductance L1 of cathode connection diode D5, inductance L1, the cathode of diode D7
With DC voltage VCC, the anode of diode D4 connects the anode, the other end of capacitance C3 and inductance L2, inductance L2 of diode D6
Other end connection capacitance C2 the other end, the anode of diode D7 and ground terminal GND.
3. DC load timing shutdown circuit according to claim 2, which is characterized in that the pi type filter circuit packet
Include capacitance C2, capacitance C3, inductance L1 and inductance L2.
4. DC load timing shutdown circuit according to claim 1, which is characterized in that the delay control circuit includes
Linked switch S1, capacitance C1 and chip IC 1, switch motion circuit includes triode V1, triode V2 and diode D2, described
The not movable contact 1 of dynamic switch S1 connects not movable contact 2 of linked switch S1, the movable contact 3 of linked switch S1 connect capacitance C4 and
The movable contact 4 of DC voltage VCC, linked switch S1 connect capacitance C1, and the not movable contact 5 of linked switch S1 connects resistance R2 and three
The emitter of pole pipe V1, the not movable contact 6 of linked switch S1 connect the pin of the anode of diode D1, resistance R1 and chip IC 1
Other end connection resistance R3, the other end of capacitance C1, the cathode of diode D2, the pin 5 of chip IC 1, the power supply E of 3, resistance R1
The cathode and cathode connection pin 2 of chip IC 1 of load A, diode D1, the collector of triode V1 and load A it is another
End, the other end of other end connection resistance R3 of base stage connection the resistance R5, resistance R2 of triode V1 and the pin 1 of chip IC 1,
The pin 4 of chip IC 1 connects resistance R4, the base stage of the other end connecting triode V2 of resistance R4, and the emitter of triode V2 connects
Connect the anode of diode D2.
5. DC load timing shutdown circuit according to claim 4, which is characterized in that the model of the chip IC 1
LM321。
6. DC load timing shutdown circuit according to claim 4, which is characterized in that the diode D2 is luminous two
Pole pipe.
7. DC load timing shutdown circuit according to claim 2, which is characterized in that the diode D7 is voltage stabilizing two
Pole pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854103.XU CN207603442U (en) | 2017-12-27 | 2017-12-27 | A kind of DC load timing shutdown circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721854103.XU CN207603442U (en) | 2017-12-27 | 2017-12-27 | A kind of DC load timing shutdown circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207603442U true CN207603442U (en) | 2018-07-10 |
Family
ID=62768792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721854103.XU Expired - Fee Related CN207603442U (en) | 2017-12-27 | 2017-12-27 | A kind of DC load timing shutdown circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207603442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092654A (en) * | 2017-12-27 | 2018-05-29 | 山东汉旗科技有限公司 | A kind of DC load timing shutdown circuit |
-
2017
- 2017-12-27 CN CN201721854103.XU patent/CN207603442U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092654A (en) * | 2017-12-27 | 2018-05-29 | 山东汉旗科技有限公司 | A kind of DC load timing shutdown circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205491293U (en) | Solar energy LED lighting control circuit | |
| CN104427698B (en) | A kind of control circuit | |
| CN204206069U (en) | A kind of solar mobile power box | |
| CN104135043B (en) | A kind of two-stage safeguard protection feedback control charger | |
| CN205544520U (en) | Automatic energy -conserving charging circuit of pressure regulating | |
| CN207603442U (en) | A kind of DC load timing shutdown circuit | |
| CN204104174U (en) | The two line two paths of LED lamp strings that a kind of light-controlled electronic transformer controls | |
| CN205051415U (en) | Lithium battery charging circuit | |
| CN201048304Y (en) | Manual power generation charging circuit of digital product | |
| CN204859636U (en) | Energy -conserving LED drive circuit | |
| CN107968643A (en) | A kind of DC load singly-bound touch control on-off circuit | |
| CN104901280B (en) | A kind of intelligent protection circuit | |
| CN201113475Y (en) | USB charger possessing control switch | |
| CN108092654A (en) | A kind of DC load timing shutdown circuit | |
| CN208904338U (en) | A kind of intelligent socket of achievable intelligent charge | |
| CN103227563A (en) | Intelligent digital control switch power supply | |
| CN202488366U (en) | Energy-saving ultra-small switch power supply for plug and socket with electronic circuit | |
| CN207835155U (en) | A kind of control circuit of WIFI sockets | |
| CN108092390A (en) | A kind of photovoltaic booster power for outdoor construction | |
| CN206350198U (en) | A kind of inexpensive circuit on Switching Power Supply secondary side feedback | |
| CN207743745U (en) | A kind of photovoltaic booster power for outdoor construction | |
| CN201122903Y (en) | Electric power of switch | |
| CN208078668U (en) | A kind of construction stand-by power supply regulating circuit | |
| CN203872417U (en) | Light-emitting diode drive circuit | |
| CN204761769U (en) | LED control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180710 Termination date: 20201227 |