CN212660351U - Novel magnetic attraction integrated driving power supply - Google Patents
Novel magnetic attraction integrated driving power supply Download PDFInfo
- Publication number
- CN212660351U CN212660351U CN202021071614.6U CN202021071614U CN212660351U CN 212660351 U CN212660351 U CN 212660351U CN 202021071614 U CN202021071614 U CN 202021071614U CN 212660351 U CN212660351 U CN 212660351U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- resistor
- control circuit
- output 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utility model belongs to the technical field of power supply circuit, especially, relate to a novel magnetism is inhaled integration drive power supply. The lightning surge protection circuit is connected with the FlyBack control circuit after rectifying and filtering the voltage through the rectifying and filtering circuit; the FlyBack control circuit connects the voltage after the rectification and filtering processing with a rectification and filtering output voltage circuit through a high-frequency isolation transformer, and the rectification and filtering output voltage circuit is connected with an output voltage control circuit for regulation and control; the output voltage control circuit is connected with the FlyBack control circuit through the matching of the isolation optocoupler to perform voltage feedback. The output voltage is regulated and controlled through the FlyBack control circuit, and no matter the output load is increased or reduced, the output voltage is always a fixed value with small ripples when the set power of the power supply is not exceeded, so that the constant voltage output is realized. This product is applied to magnetism and inhales formula lamp body, for magnetism inhales integration drive power supply, drive power supply's small, realizes saving space.
Description
Technical Field
The utility model belongs to the technical field of power supply circuit, especially, relate to a novel magnetism is inhaled integration drive power supply.
Background
Along with the high-speed development of electronic technology, the types of electronic equipment are more and more, and great pleasure is brought to the life of people. Any electronic device cannot be disconnected from a reliable power supply, and particularly, the demand for a mobile power supply is increasing. The stability of the output voltage of the power supply directly affects the light emitting stability of the LED, the electronic devices and the service life. The drive power supply of formula lamps and lanterns is inhaled to magnetism before is the external mounting, what the strip was installed is inhaled to magnetism can only be the lamp body, and drive power supply is bulky, and installation and change are inconvenient.
SUMMERY OF THE UTILITY MODEL
Aiming at solving the problems of the defects and the shortcomings of the prior art; an object of the utility model is to provide a simple structure, reasonable in design, convenient to use's novel magnetism is inhaled integration drive power supply, and it regulates and control output voltage through FlyBack control circuit, no matter the output load increase still reduces, is no longer than the power setting power, and output voltage is a fixed value of taking little ripple all the time to realize constant voltage output.
In order to achieve the above object, the utility model adopts the following technical scheme: the lightning protection circuit comprises a lightning surge protection circuit, an alternating current input circuit, a rectifying and filtering circuit, a FlyBack control circuit, a high-frequency isolation transformer, a rectifying and filtering output voltage circuit, an output voltage control circuit and an isolation optocoupler; the lightning surge protection circuit is connected with the FlyBack control circuit after rectifying and filtering the voltage through the rectifying and filtering circuit; the FlyBack control circuit connects the voltage after the rectification and filtering processing with a rectification and filtering output voltage circuit through a high-frequency isolation transformer, and the rectification and filtering output voltage circuit is connected with an output voltage control circuit for regulation and control; the output voltage control circuit is connected with the FlyBack control circuit through the matching of the isolation optocoupler to perform voltage feedback.
Preferably, the FlyBack control circuit consists of an LZC9205 main control chip, a capacitor III, a capacitor V, a resistor III to a resistor ten, a diode and an NMOS (N-channel metal oxide semiconductor) tube; a GND pin of the LZC9205 main control chip is connected with a power supply VCC through a capacitor III, an FB pin of the LZC9205 main control chip U1 is connected with an isolation optocoupler, and an OPT pin of the LZC9205 main control chip is connected with a resistor ten and then grounded; the DRV pin of the LZC9205 main control chip is connected with a diode and a resistor eight which are connected in parallel, the diode and the resistor eight are connected with the grid electrode and the resistor six of the NMOS tube, the drain electrode of the NMOS tube is connected to the rectifying and filtering circuit, the source electrode of the NMOS tube is connected with the other end of the resistor nine after being connected in parallel with the resistor six, the CS pin of the LZC9205 main control chip is respectively connected with one end of a capacitor three and one end of a resistor nine, the other end of the capacitor three is grounded, the other end of the resistor nine is connected with a resistor three, a resistor four, a resistor five and a resistor seven, and the resistor three, the resistor four, the resistor five and.
Preferably, the input end of the isolation optocoupler is connected with the output voltage control circuit, and the output end of the isolation optocoupler is connected with the feedback voltage end of the master control chip of the FlyBack control circuit.
Preferably, the output voltage control circuit is composed of a TL431 chip and a peripheral circuit.
Preferably, the lightning surge protection circuit, the alternating current input, the rectification filter circuit, the FlyBack control circuit, the high-frequency isolation transformer, the rectification filter output voltage circuit, the output voltage control circuit and the isolation optocoupler form a constant voltage power supply unit, and the constant voltage power supply unit is inserted into the groove through the matching of two groups of elastic clamp springs at the outer side of the bottom and the clamping groove.
Preferably, the bottom of the groove 103 is provided with a slot 105 penetrating through the groove 103, and a magnetic strip 106 is inserted into the slot 105; a plurality of magnets 107 are embedded at the top of the constant voltage power supply unit 101; the matching of the magnetic strip 106 and the magnet 107 can reinforce the close fit and the stability of the constant voltage power supply unit 101 and the groove 103.
After the structure is adopted, the utility model discloses beneficial effect does: the output voltage is regulated and controlled through the FlyBack control circuit, and no matter the output load is increased or reduced, the output voltage is always a fixed value with small ripples when the set power of the power supply is not exceeded, so that the constant voltage output is realized. This product is applied to magnetism and inhales formula lamp body, for magnetism inhales integration drive power supply, drive power supply's small, realizes saving space, and it is convenient to install, and it is easy to change.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is described in detail by the following specific embodiments and the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an electrical schematic diagram of the present invention.
Fig. 3 is an installation schematic diagram of the present invention.
Fig. 4 is a side view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.
Referring to fig. 1 and 2, the following technical solutions are adopted in the present embodiment: the lightning protection circuit comprises a lightning surge protection circuit 1, an alternating current input 2, a rectification filter circuit 3, a FlyBack control circuit 4, a high-frequency isolation transformer 5, a rectification filter output voltage circuit 6, an output voltage control circuit 7 and an isolation optocoupler 8; the lightning surge protection circuit 1 is connected with the FlyBack control circuit 4 after voltage rectification and filtering processing is carried out on the lightning surge protection circuit 1 through the rectification filter circuit 3; the FlyBack control circuit 4 connects the voltage after the rectification and filtering processing with a rectification and filtering output voltage circuit 6 through a high-frequency isolation transformer 5, and the rectification and filtering output voltage circuit 6 is connected with an output voltage control circuit 7 for regulation and control; and the output voltage control circuit 7 is connected with the FlyBack control circuit 4 through the matching of an isolation optocoupler 8 for voltage feedback.
The FlyBack control circuit 4 consists of an LZC9205 main control chip U1, a capacitor three C3, a capacitor five C5, a resistor three to resistor ten R3-R10, a diode D1 and an NMOS tube Q1; the GND pin of the LZC9205 main control chip U1 is connected with a power supply VCC through a capacitor three C3, the FB pin of the LZC9205 main control chip U1 is connected with an isolation optocoupler 8, and the OPT pin of the LZC9205 main control chip U1 is connected with a resistor ten R10 and then grounded; the DRV pin of the LZC9205 main control chip U1 is connected with a diode D1 and a resistor eight R8 which are connected in parallel, the diode D1 and the resistor eight R8 are connected with the grid of an NMOS tube Q1 and a resistor six R6, the drain of the NMOS tube Q1 is connected to the rectifying and filtering circuit 3, the source of the NMOS tube Q1 is connected with a resistor six R6 in parallel and then connected to the other end of the resistor nine R9, the CS pin of the LZC9205 main control chip U1 is connected with one end of a capacitor three C3 and one end of a resistor nine R9 respectively, the other end of the capacitor three C3 is grounded, the other end of the resistor nine R9 is connected with a resistor three R3, a resistor four R4, a resistor five R5 and a resistor seven R7, and the resistor three R3, the resistor four R4, the resistor five R5 and the resistor seven R7.
In addition, the input end of the isolation optocoupler 8 is connected with the output voltage control circuit 7, and the output end of the isolation optocoupler 8 is connected with the feedback voltage end of the master control chip of the FlyBack control circuit 4; the output voltage control circuit 7 is composed of a TL431 chip and peripheral circuits.
Referring to fig. 3 and 4, a constant voltage power supply unit 101 is formed by electrical components, and the constant voltage power supply unit 101 is inserted into the groove 103 through the matching of two sets of elastic snap springs 102 at the outer side of the bottom and a clamping groove 104; the bottom of the groove 103 is provided with a slot 105 penetrating through the groove 103, and a magnetic strip 106 is inserted into the slot 105; a plurality of magnets 107 are embedded in the top of the constant voltage power supply unit 101; the matching of the magnetic strip 106 and the magnet 107 can strengthen the close fit between the constant voltage power supply unit 101 and the groove 103 and improve the stability.
The working principle of the specific embodiment is as follows: the FB pin of the LZC9205 chip U1 outputs a current to generate a voltage on the pin, the U1 controls the power output by the system according to the voltage, when the output power is too large, the FB can rise to the maximum voltage, and the system is shut down after hysteresis; the current flowing through the pins 3 and 4 of the optocoupler U2 controls the FB voltage, and the current flowing through the pins 3 and 4 is determined by the current flowing through the pins 1 and 2; the TL431 chip U3 controls current flowing through pins 1 and 2 of the optocoupler U2, and further controls current flowing through pins 3 and 4 of the optocoupler through a FB pin. The TL431 chip U3 determines the output voltage by detecting the voltage division generated after the resistors R19, R20 are connected in parallel and R21 are connected in series; the output voltage Vo = (R21/(R19 × R20/(R19+ R20)) +1) × 2.5V.
When the output load is reduced, namely the required energy is reduced, the U1 maintains the original duty ratio, the output energy is larger than the energy required by the load, the output voltage is increased, the voltage division voltage detected by the U3 is higher than 2.5V, the U3 increases the current flowing through the pins 1 and 2 of the optical coupler, the circulating current of the pins 3 and 4 of the optical coupler is increased, the voltage of the FB pin of the U1 is reduced, the PWM duty ratio output by the U1 is reduced, the stored energy of the transformer is reduced, and the output voltage is gradually reduced to the set value of the U3.
Conversely, when the output load is increased, namely the required energy is increased, the U1 maintains the original duty ratio, the output energy is smaller than the energy required by the load, the output voltage is reduced, the U3 detects that the divided voltage is lower than 2.5V, the U3 reduces the current flowing through the pins 1 and 2 of the optical coupler, so that the circulating current of the pins 3 and 4 of the optical coupler is reduced, the voltage of the FB pin of the U1 is increased, the PWM duty ratio output by the U1 is increased, the stored energy of the transformer is increased, and the output voltage is gradually increased to the set value of the U3.
No matter the output load is increased or reduced, as long as the set power of the power supply is not exceeded, the output voltage is always a fixed value with small ripples, and therefore constant voltage is achieved.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a novel integration drive power supply is inhaled to magnetism which characterized in that: the lightning surge protection circuit comprises a lightning surge protection circuit (1), an alternating current input (2), a rectification filter circuit (3), a FlyBack control circuit (4), a high-frequency isolation transformer (5), a rectification filter output voltage circuit (6), an output voltage control circuit (7) and an isolation optocoupler (8); the lightning surge protection circuit (1) is connected with the FlyBack control circuit (4) after voltage rectification and filtering processing is carried out on the lightning surge protection circuit (1) through the rectification filter circuit (3); the FlyBack control circuit (4) connects the voltage after rectification and filtering processing with a rectification and filtering output voltage circuit (6) through a high-frequency isolation transformer (5), and the rectification and filtering output voltage circuit (6) is connected with an output voltage control circuit (7) for regulation and control; the output voltage control circuit (7) is connected with the FlyBack control circuit (4) through the matching of an isolation optocoupler (8) for voltage feedback.
2. The novel magnetic attraction integrated driving power supply of claim 1, characterized in that: the FlyBack control circuit (4) consists of an LZC9205 main control chip (U1), a capacitor III (C3), a capacitor V (C5), a resistor III to a resistor ten (R3-R10), a diode (D1) and an NMOS (N-channel metal oxide semiconductor) tube (Q1); the GND pin of the LZC9205 main control chip (U1) is connected with a power supply VCC through a capacitor three (C3), the FB pin of the LZC9205 main control chip (U1) is connected with an isolation optocoupler (8), and the OPT pin of the LZC9205 main control chip (U1) is connected with a resistor ten (R10) and then grounded; the DRV pin of the LZC9205 main control chip (U1) is connected with a diode (D1) and a resistor eight (R8) which are connected in parallel, the diode (D1) and the resistor eight (R8) are connected with the grid electrode of an NMOS tube (Q1) and a resistor six (R6), the drain electrode of the NMOS tube (Q1) is connected onto the rectifying and filtering circuit (3), the source electrode of the NMOS tube (Q1) is connected with the resistor six (R6) in parallel and then connected to the other end of the resistor nine (R9), the CS pin of the LZC9205 main control chip (U1) is connected with one ends of a capacitor three (C3) and a resistor nine (R9) respectively, the other end of the capacitor three (C3) is grounded, the other end of the resistor nine (R9) is connected with a resistor three (R3), a resistor four (R4), a resistor five (R5) and a resistor seven (R7) are connected in parallel and then grounded.
3. The novel magnetic attraction integrated driving power supply of claim 1, characterized in that: the input end of the isolation optocoupler (8) is connected with the output voltage control circuit (7), and the output end of the isolation optocoupler (8) is connected with the feedback voltage end of the master control chip of the FlyBack control circuit (4).
4. The novel magnetic attraction integrated driving power supply of claim 1, characterized in that: the output voltage control circuit (7) is composed of a TL431 chip and a peripheral circuit.
5. The novel magnetic attraction integrated driving power supply of claim 1, characterized in that: the lightning surge protection circuit (1), alternating current input (2), rectification filter circuit (3), FlyBack control circuit (4), high frequency isolation transformer (5), rectification filter output voltage circuit (6), output voltage control circuit (7), constant voltage power supply unit (101) that keep apart opto-coupler (8) and constitute, and constant voltage power supply unit (101) are pegged graft inside type groove (103) through the cooperation of two sets of elasticity jump rings (102) in the bottom outside and draw-in groove (104).
6. The novel magnetic attraction integrated driving power supply of claim 5, characterized in that: the bottom of the type groove (103) is provided with a slot (105) penetrating through the type groove (103), and a magnetic strip (106) is inserted into the slot (105); a plurality of magnets (107) are embedded in the top of the constant voltage power supply unit (101); the magnetic strip (106) and the magnet (107) are matched to reinforce the close fit and the stability of the constant voltage power supply unit (101) and the groove (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021071614.6U CN212660351U (en) | 2020-06-11 | 2020-06-11 | Novel magnetic attraction integrated driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021071614.6U CN212660351U (en) | 2020-06-11 | 2020-06-11 | Novel magnetic attraction integrated driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212660351U true CN212660351U (en) | 2021-03-05 |
Family
ID=74753989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021071614.6U Active CN212660351U (en) | 2020-06-11 | 2020-06-11 | Novel magnetic attraction integrated driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212660351U (en) |
-
2020
- 2020-06-11 CN CN202021071614.6U patent/CN212660351U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201986215U (en) | High-power light emitting diode (LED) isolation type driving power supply | |
| CN110166721B (en) | Staggered PFC (Power factor correction) constant-current direct drive circuit, driving power supply and television | |
| CN110798927A (en) | LED drive circuit based on T-shaped lamp tube | |
| CN212660351U (en) | Novel magnetic attraction integrated driving power supply | |
| CN202696960U (en) | Novel LED (light emitting diode) lamp driving power source | |
| CN103094975A (en) | Storage battery charging circuit and light-emitting diode (LED) lamp thereof | |
| CN102882389B (en) | Constant current source | |
| CN205430668U (en) | LED drive circuit and lighting apparatus | |
| CN114678830A (en) | Low-power-consumption dimming circuit and power supply method thereof | |
| CN211019310U (en) | Lamp tube driving circuit compatible with electronic rectifier and mains supply and lamp | |
| CN211509366U (en) | LED drive circuit based on T-shaped lamp tube | |
| WO2022082890A1 (en) | Alternating-current and direct-current switching lighting drive circuit and lamp | |
| CN203554764U (en) | LED power supply with synchronization rectification | |
| CN216312959U (en) | Auxiliary power supply circuit suitable for switching power supply | |
| CN215452798U (en) | Digital high-voltage module | |
| CN104716847A (en) | Small-power switching power source circuit and small-power switching power source | |
| CN205356734U (en) | Light -emitting diode (LED) lighting equipment | |
| CN218416744U (en) | High-voltage stroboflash-free LED drive circuit | |
| CA3094840A1 (en) | Driver for led and led system | |
| CN218567924U (en) | Power supply system | |
| CN204721677U (en) | A kind of LED drive power circuit | |
| CN219436888U (en) | Circuit for reducing standby power consumption of main transformer integrated refrigerator through optocoupler and MOS tube | |
| CN220857926U (en) | Power supply circuit for intelligent switch | |
| CN201750603U (en) | LED driving system of PL pipe | |
| CN215300503U (en) | Switching power supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |