CN209345429U - A kind of low power consumpting controling circuit - Google Patents
A kind of low power consumpting controling circuit Download PDFInfo
- Publication number
- CN209345429U CN209345429U CN201821670845.1U CN201821670845U CN209345429U CN 209345429 U CN209345429 U CN 209345429U CN 201821670845 U CN201821670845 U CN 201821670845U CN 209345429 U CN209345429 U CN 209345429U
- Authority
- CN
- China
- Prior art keywords
- resistance
- unit
- output end
- voltage
- chip microcontroller
- 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
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a kind of low power consumpting controling circuit, belongs to power supply control field.The utility model includes single-chip microcontroller, locking unit, control unit, rectification unit, voltage conversion unit and voltage detection unit, wherein, the output end of the single-chip microcontroller is connected with the input terminal of locking unit, the locking unit output end is connected with control unit input terminal, described control unit output end is connected with rectification unit input terminal, the rectification unit output end is connected with voltage conversion unit input terminal, and the single-chip microcomputer input is connected with voltage conversion unit output end and voltage detection unit output end respectively.The utility model has the following beneficial effects: it is energy saving, realize almost 0 power consumption being supported under closing or standby mode.
Description
Technical field
The utility model relates to a kind of power control circuit more particularly to a kind of low power consumpting controling circuits.
Background technique
Answer environment protection requirement, power load is in addition to other than working condition energy conservation, in off working state, that is, standby mode
Power consumption should be reduced as far as possible.But in actual application, even using auxiliary circuit two stage arrangement and PFC grades
Discontinuous operation pattern is still not achieved so-called " O power consumption ", is used for a long time and results in waste of resources.
By taking LED light as an example, LED light is widely used in life because it is with characteristic high-efficient, environmentally friendly and with long service life
In work, traditional LED is exclusively used in the auxiliary of standby power in use, since waiting condition is not present in illumination application during operation
Help power stage and be not suitable for, even if for bulb powered Switching Power Supply under conditions of no lamp or lamp have damaged still with electricity
Net is connected and is absorbed energy, to cause electric energy loss.
Utility model content
To solve the problems of the prior art, the utility model provides a kind of low power consumpting controling circuit.
The utility model includes single-chip microcontroller, locking unit, control unit, rectification unit, voltage conversion unit and voltage inspection
Survey unit, wherein the output end of the single-chip microcontroller is connected with the input terminal of locking unit, the locking unit output end and control
Unit input terminal is connected, and described control unit output end is connected with rectification unit input terminal, the rectification unit output end and electricity
Converting unit input terminal is pressed to be connected, the single-chip microcomputer input is defeated with voltage conversion unit output end and voltage detection unit respectively
Outlet is connected.
The utility model is further improved, and the locking unit includes resistance R5, resistance R6 and triode T2, wherein
The latter termination single-chip microcontroller PA4 pin of the resistance R5 and resistance R6 series connection, other end ground connection, the base stage of the triode T2 connect electricity
It hinders between R5 and resistance R6, the emitter of the triode T2 is grounded, and collector is connected with control unit.
The utility model is further improved, described control unit include resistance R4A, resistance R4B, power input and
Metal-oxide-semiconductor Q1, wherein the power input is connected with the source electrode of one end of resistance R4A and metal-oxide-semiconductor Q1 respectively, the resistance R4A
The other end and the grid of metal-oxide-semiconductor Q1 pass through resistance R4B respectively and be connected with the collector of triode T2, the drain electrode of the metal-oxide-semiconductor
It is connected with rectification unit.
The utility model is further improved, and the rectification unit includes diode D2 and polar capacitor EC1, it is described
Diode D2 anode be connected with the drain electrode of metal-oxide-semiconductor, the cathode of the diode D2 respectively with the anode of polar capacitor EC1, electricity
It presses converting unit to be connected, and exports VCC power supply.
The utility model is further improved, and the voltage conversion unit includes LDO conversion chip, and output 3.3V voltage is
Single-chip microcontroller power supply.
The utility model is further improved, and the voltage detection unit includes resistance R1, resistance R2, resistance R3, two poles
Pipe D1, capacitor C1, switch SW, wherein the one end switch SW ground connection, one end of another terminating resistor R2, the resistance R2's
Other end one end with the cathode of diode D1 and resistance R3 respectively, another terminating resistor R4A and resistance R4B of resistance R3 it
Between, the anode of the diode is connected with resistance R1, single-chip microcontroller collection voltage pin and capacitor C1 respectively, and the capacitor C1 is another
End ground connection, another termination 3.3V voltage of resistance R1.
Compared with prior art, the utility model has the beneficial effects that energy saving, realization is supported on closing or standby
Almost 0 power consumption under state.
Detailed description of the invention
Fig. 1 is the block diagram of the utility model；
Fig. 2 is the utility model circuit diagram；
Fig. 3 is one embodiment circuit diagram of single-chip microcontroller；
Fig. 4 is embodiment driving and load circuit schematic diagram.
Specific embodiment
The utility model is described in further details with reference to the accompanying drawings and examples.
As shown in Figure 1, the utility model includes single-chip microcontroller, locking unit, control unit, rectification unit, voltage conversion list
Member and voltage detection unit, wherein the output end of the single-chip microcontroller is connected with the input terminal of locking unit, and the locking unit is defeated
Outlet is connected with control unit input terminal, and described control unit output end is connected with rectification unit input terminal, the rectification unit
Output end is connected with voltage conversion unit input terminal, the single-chip microcomputer input respectively with voltage conversion unit output end and voltage
Detection unit output end is connected.
As shown in Fig. 2, the locking unit includes resistance R5, resistance R6 and triode T2, wherein the resistance R5 and electricity
R6 is hindered to connect latter termination single-chip microcontroller PA4 pin, the other end is grounded, the base stage connecting resistance R5 and resistance R6 of the triode T2 it
Between, the emitter of the triode T2 is grounded, and collector is connected with control unit.
Described control unit includes resistance R4A, resistance R4B, power input VIN input and metal-oxide-semiconductor Q1, wherein described
Power input is connected with the source electrode of one end of resistance R4A and metal-oxide-semiconductor Q1 respectively, the other end and metal-oxide-semiconductor Q1 of the resistance R4A
Grid pass through resistance R4B respectively and be connected with the collector of triode T2, the drain electrode of the metal-oxide-semiconductor is connected with rectification unit.
The rectification unit includes diode D2 and polar capacitor EC1, anode and the metal-oxide-semiconductor of the diode D2
Drain electrode is connected, and the cathode of the diode D2 is connected with the anode of polar capacitor EC1, voltage conversion unit respectively, and exports VCC
Power supply, shown VCC power supply can power for driving unit.The voltage conversion unit includes LDO conversion chip, output 3.3V electricity
Pressure is that single-chip microcontroller is powered.Certainly, do not limit to and 3.3V, other voltages of single-chip microcontroller adaptation can be converted to.
The voltage detection unit includes resistance R1, resistance R2, resistance R3, diode D1, capacitor C1, switch SW, wherein
The one end switch SW ground connection, one end of another terminating resistor R2, the other end of the resistance R2 are negative with diode D1 respectively
One end of pole and resistance R3, between another terminating resistor R4A and resistance R4B of resistance R3, the diode anode respectively with
Resistance R1, single-chip microcontroller collection voltage pin are connected with capacitor C1, the capacitor C1 other end ground connection, another termination of resistance R1
3.3V voltage.The SW switch of this example is contact switch.
As shown in Figure 3 and Figure 4, as one embodiment of the utility model, the load of this example is LED light, the monolithic
Machine can also connect other drivings and load.The single-chip microcontroller of this example is integrated circuit U3, wherein the pin 1 of U3 connects power supply, pin
8 connect power ground, and pin 2 is the PA4 pin for connecing locking unit, and pin 4 connects voltage detection unit, and pin 5 connects driving unit, pin
7 take over under-voltage protection unit, this is the prior art, not the improvement of the utility model, therefore are not unfolded to illustrate.Integrated circuit U2
Light-emitting diode LED 1, LED2, LED3, LED4 are driven under the control of single-chip microcontroller for driving chip.
The working principle of this example are as follows:
After pressing SW switch, resistance R4A, R3, R2 are input to by VIN and constitute circuit, A point current potential ratio B point is high, metal-oxide-semiconductor
Q1 is opened, and ensuring to enter voltage conversion unit by rectification unit is DC current, and VCC is driving unit power supply, final defeated
The voltage of 3.3V powers on single-chip microcontroller out.LED light is lighted by driving unit, at the same time, is powered on via single-chip microcontroller control
Afterwards, PA4 foot exports high level, and locking unit triode T2 after resistance R6, R5 partial pressure is opened at this time and VIN input is constituted
Circuit.It realizes in this way and keeps the state that A point current potential B current potential is high, and metal-oxide-semiconductor Q1 is opened after SW switch bounces, so that 3.3
The constant work for maintaining single-chip microcontroller, driving unit and LED light of voltage output.
When needing to enter standby mode, SW switch is pressed again, and the enabled foot of single-chip microcontroller detects a failing edge, controls
PA4 foot processed exports low level, and triode T2 shutdown in locking unit, at this time since SW is not bounced also, A point current potential is still than B point
Height, metal-oxide-semiconductor Q1 are in an open state, and LED light still keeps work.After SW is bounced completely, metal-oxide-semiconductor Q1 shutdown, entire circuit is closed,
Enter standby mode, standby current is the leakage current of diode D1, triode T2, metal-oxide-semiconductor Q1 at this time, three in A grades of μ or
It is smaller, so that stand-by power consumption be made to be almost 0.
This example provides a kind of control circuit mainly to realize standby " 0 power consumption ", and use-case is direct-current LED lamp, and traditional is straight
LED major part standby current is flowed at mA grades, is used for a long time and is resulted in waste of resources, standby current is then down to microampere using this circuit
Grade even na level, certain loading section include being not limited to LED light, can be used for expanding other loads.
The specific embodiment of the above is the better embodiment of the utility model, and it is practical new not to limit this with this
The specific implementation range of type, the scope of the utility model includes being not limited to present embodiment, all according to the utility model
Made equivalence changes are within the protection scope of the present utility model.
Claims (6)
1. a kind of low power consumpting controling circuit, it is characterised in that: including single-chip microcontroller, locking unit, control unit, rectification unit, electricity
Press converting unit and voltage detection unit, wherein the output end of the single-chip microcontroller is connected with the input terminal of locking unit, the lock
Stop element output end is connected with control unit input terminal, and described control unit output end is connected with rectification unit input terminal, described
Rectification unit output end is connected with voltage conversion unit input terminal, and the single-chip microcomputer input is exported with voltage conversion unit respectively
End is connected with voltage detection unit output end.
2. low power consumpting controling circuit according to claim 1, it is characterised in that: the locking unit includes resistance R5, electricity
Hinder R6 and triode T2, wherein the latter termination single-chip microcontroller PA4 pin of the resistance R5 and resistance R6 series connection, other end ground connection, institute
It states between the base stage connecting resistance R5 of triode T2 and resistance R6, the emitter ground connection of the triode T2, collector and control are single
Member is connected.
3. low power consumpting controling circuit according to claim 2, it is characterised in that: described control unit includes resistance R4A, electricity
Hinder R4B, power input and metal-oxide-semiconductor Q1, wherein the power input source with one end of resistance R4A and metal-oxide-semiconductor Q1 respectively
Extremely it is connected, the other end of the resistance R4A and the grid of metal-oxide-semiconductor Q1 pass through collector phase of the resistance R4B with triode T2 respectively
Even, the drain electrode of the metal-oxide-semiconductor is connected with rectification unit.
4. low power consumpting controling circuit according to claim 3, it is characterised in that: the rectification unit include diode D2 and
Polar capacitor EC1, the diode D2 anode be connected with the drain electrode of metal-oxide-semiconductor, the cathode of the diode D2 respectively with pole
Property capacitor EC1 anode, voltage conversion unit be connected, and export VCC power supply.
5. low power consumpting controling circuit according to claim 4, it is characterised in that: the voltage conversion unit includes that LDO turns
Chip is changed, exports 3.3V voltage as single-chip microcontroller power supply.
6. low power consumpting controling circuit according to claim 5, it is characterised in that: the voltage detection unit includes resistance
R1, resistance R2, resistance R3, diode D1, capacitor C1, switch SW, wherein the one end switch SW ground connection, another terminating resistor
One end of R2, the other end of resistance R2 one end with the cathode of diode D1 and resistance R3 respectively, the other end of resistance R3
Between connecting resistance R4A and resistance R4B, the diode anode respectively with resistance R1, single-chip microcontroller collection voltage pin and capacitor
C1 is connected, the capacitor C1 other end ground connection, another termination 3.3V voltage of resistance R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670845.1U CN209345429U (en) | 2018-10-15 | 2018-10-15 | A kind of low power consumpting controling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670845.1U CN209345429U (en) | 2018-10-15 | 2018-10-15 | A kind of low power consumpting controling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209345429U true CN209345429U (en) | 2019-09-03 |
Family
ID=67745532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821670845.1U Active CN209345429U (en) | 2018-10-15 | 2018-10-15 | A kind of low power consumpting controling circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209345429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152152A (en) * | 2018-10-15 | 2019-01-04 | 深圳市比比赞科技有限公司 | A kind of low power consumpting controling circuit |
-
2018
- 2018-10-15 CN CN201821670845.1U patent/CN209345429U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109152152A (en) * | 2018-10-15 | 2019-01-04 | 深圳市比比赞科技有限公司 | A kind of low power consumpting controling circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102754531B (en) | Led driving power supply circuit, driving power supply and lighting device | |
| CN101835312A (en) | LED drive control circuit | |
| CN106550512A (en) | A kind of resonant type soft-switch single stage type LED drive circuit | |
| CN104519633A (en) | Undervoltage protective circuit for LED lamps | |
| CN204465954U (en) | A kind of LED lamp drive circuit with dimming function | |
| CN209345429U (en) | A kind of low power consumpting controling circuit | |
| CN203588107U (en) | Heavy-current linear constant-current power supply with automatic voltage regulation function | |
| CN106793342B (en) | A kind of long-life LED drive power based on ripple compensation | |
| CN106896859B (en) | A kind of automatic washing machine Zero consumption standby circuit | |
| CN109152152A (en) | A kind of low power consumpting controling circuit | |
| CN106602861B (en) | Improve the control circuit of Active PFC transfer efficiency | |
| CN204465952U (en) | A kind of LED energy-saving circuit based on MSP430 | |
| CN205029927U (en) | Driver chip and single -stage high power factor LED drive arrangement | |
| CN101277020A (en) | Power supply circuit with electricity-saving function | |
| CN201352759Y (en) | Power source device with low standby power | |
| CN207854227U (en) | Low-voltage LED linear drive circuit | |
| CN209419478U (en) | Low standby power loss circuit and power switch system | |
| CN203136259U (en) | LED power supply four-in-one light modulation circuit | |
| CN209218429U (en) | The economical LED illumination emergency light driving circuit of energy conservation | |
| CN202282641U (en) | Power supply circuit for high-frequency ignition of integrated stove | |
| CN206865788U (en) | A kind of circuit of corridor light of energy saving | |
| CN205355925U (en) | Portable power source with protect function | |
| CN201491314U (en) | Driver circuit for LED fluorescent lamp | |
| CN209516708U (en) | A kind of shutdown energy-saving circuit based on analog circuit | |
| CN205648098U (en) | Multi -functional LED lighting circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |