CN209516686U - A kind of microprocessor work control circuit - Google Patents
A kind of microprocessor work control circuit Download PDFInfo
- Publication number
- CN209516686U CN209516686U CN201920330650.0U CN201920330650U CN209516686U CN 209516686 U CN209516686 U CN 209516686U CN 201920330650 U CN201920330650 U CN 201920330650U CN 209516686 U CN209516686 U CN 209516686U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- supply unit
- electrically connected
- charging
- 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
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of microprocessor work control circuits, including switch unit, MCU power circuit, power supply unit, the output end of power supply unit is electrically connected with the input terminal of MCU power circuit, the output end of MCU power circuit is electrically connected with the power end of microprocessor, switch unit is electrically connected with the enable end of MCU power circuit, and the output end of microprocessor is electrically connected by first switch circuit with the enable end of MCU power circuit.The quiescent dissipation of the utility model is zero, to save power supply unit electricity, substantially prolongs product storage time, extends product duty cycle (puff number as increased electronic cigarette) and power supply unit service life；Meanwhile in power supply unit charging, microprocessor does not consume the electricity of power supply unit, so that power supply unit can be rapidly filled with, reduces the charging time, and safety is good, enhances product performance and user experience.
Description
Technical field
In particular to a kind of microprocessor work control circuit of the utility model.
Background technique
Existing microprocessor work control circuit includes switch unit, MCU power circuit, power supply unit, switch unit
It is electrically connected with the control terminal of MCU power circuit, the output end of power supply unit is electrically connected with the input terminal of MCU power circuit, MCU electricity
The output end of source circuit is electrically connected with the power end of microprocessor.Wherein, power supply unit is generally rechargeable battery, microprocessor work
It further include charging interface, charging circuit and protection circuit as control circuit, charging interface passes sequentially through charging circuit, protection circuit
It is electrically connected with the input terminal of power supply unit.
Existing microprocessor work control circuit has the disadvantages that
When switch unit issues start-up operation signal to MCU power circuit, MCU power circuit is started to work, and power supply is single
Member is by providing working power after MCU power circuit for microprocessor.When microprocessor work, need switch unit continue to
MCU power circuit sends working signal, and otherwise microprocessor will stop working and be in standby.
When switch unit issues silence signal to MCU power circuit, MCU power circuit can't terminate work,
Microprocessor is in low power consumpting state at this time, can not turn off the power supply of itself, therefore the part electricity of power supply unit can pass through
MCU power circuit is consumed by microprocessor.Electricity so as to cause product power supply unit (battery) when not used for a long time exhaust and
Damage.
In power supply unit charging, microprocessor consumes always the electricity of power supply unit, causes the charging time to extend, especially
It is in last constant voltage charging phase, charging current is smaller, and the charging time is longer, and microprocessor and charging indicator light consume confession
Electric unit electricity, so the fully charged speed of power supply unit can be greatly prolonged.
Utility model content
The purpose of this utility model is that in view of the above shortcomings of the prior art, providing a kind of microprocessor work control
Circuit, the quiescent dissipation of microprocessor are zero, to save power supply unit electricity, substantially prolong product storage time, are extended
Product duty cycle (puff number as increased electronic cigarette) and power supply unit service life；Meanwhile in power supply unit charging, micro- place
Reason device does not consume the electricity of power supply unit, so that power supply unit can be rapidly filled with, reduces the charging time, improves product
Performance and user experience.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:
A kind of microprocessor work control circuit, including switch unit, MCU power circuit, power supply unit, power supply unit
Output end is electrically connected with the input terminal of MCU power circuit, and the output end of MCU power circuit and the power end of microprocessor are electrically connected
It connects, its main feature is that switch unit is electrically connected with the enable end of MCU power circuit, the output end of microprocessor passes through first switch electricity
Road is electrically connected with the enable end of MCU power circuit.
By above structure, when switch unit does not issue start-up operation signal to MCU power circuit (when key unclamps
When), entire circuit is to disconnect.When switch unit issues start-up operation signal to MCU power circuit (when pressing key pressing),
The enable end of MCU power circuit is raised, and MCU power circuit is started to work, and power supply unit passes through MCU power circuit to micro process
Device power supply, microprocessor work.In addition, microprocessor can be incited somebody to action by its output end after switch unit sends working signal
First switch circuit conducting, so that the enable end of MCU power circuit is drawn high, even if so that switch unit stops at this time
Sending working signal (key release) microprocessor will not stop working.It is unclamped in key and microprocessor does not need work
When, first switch circuit is truncated by its output end for microprocessor, so that the enable end of MCU power circuit drags down,
To which power supply unit stops realizing entire circuit system in static zero-power to microprocessor power supply by MCU power circuit.
It further, further include second switch circuit, it further includes charging interface and charging that said supply unit, which is rechargeable,
Circuit, charging interface are electrically connected by charging circuit with the input terminal of power supply unit；Charging interface also with second switch circuit
Input terminal electrical connection, the first output end of second switch circuit are electrically connected with the enable end of MCU power circuit, second switch circuit
Second output terminal be electrically connected with the input terminal of MCU power circuit.
By above structure, when not charging, power supply unit is powered to entire circuit；When charging interface is connected with the mains,
The conducting of second switch circuit, the enable end of MCU power circuit is raised, charging circuit while charging to power supply unit successively
By second switch circuit, MCU power circuit to microprocessor power supply, microprocessor no longer takes electricity from power supply unit, thus real
Now it is rapidly filled with electricity.
It further, further include protection circuit, charging circuit is by protecting circuit to be electrically connected with power supply unit.
By above structure, power supply unit can protect, extend power supply unit service life, while safety is good.
The MCU power circuit includes decompression chip and resistance R1 as a preferred method, is depressured the enable end of chip
It is grounded by resistance R1, the output end for being depressured chip is electrically connected with the power end of microprocessor, the first end of switch unit, power supply
The output end of unit passes through diode D2 and is electrically connected with the input terminal for being depressured chip；The second end of switch unit passes through diode
D3 is electrically connected with the enable end of decompression chip；The first switch circuit includes resistance R2 and diode D4, microprocessor it is defeated
Outlet passes sequentially through resistance R2, diode D4 and is electrically connected with the enable end for being depressured chip.
It as a preferred method, further include second switch circuit, the second switch circuit includes diode D1 and two
Pole pipe D5, said supply unit are rechargeable, further include charging interface and charging circuit；The charging circuit includes charging core
The first end of piece, charging interface is electrically connected by charging chip with the first end of power supply unit, anode, the diode of diode D5
The anode of D1 is electrically connected with the first end of charging interface, and the cathode of diode D5 is electrically connected with the enable end of decompression chip, and two
The cathode of pole pipe D1 is electrically connected with the input terminal of decompression chip；The second end of charging interface, the second end of power supply unit are grounded.
Said supply unit is charged lithium cells as a preferred method, and the protection circuit includes and power supply unit
Connected Li battery protection IC.
Further, the input terminal of the decompression chip is grounded by capacitor C3.
Further, it is described decompression chip output end and ground between and be connected to capacitor C1 and capacitor C2.
Further, the input terminal of the charging chip is grounded by capacitor C5.
Further, between the output end and ground of the charging chip and capacitor C6 and capacitor C7 are connected to.
Compared with prior art, the quiescent dissipation of the utility model is zero, to save power supply unit electricity, is greatly prolonged
Product storage time extends product duty cycle (puff number as increased electronic cigarette) and power supply unit service life；Meanwhile
When power supply unit charges, microprocessor does not consume the electricity of power supply unit, so that power supply unit can be rapidly filled with, reduces
In the charging time, safety is good, enhances product performance and user experience.
Detailed description of the invention
Fig. 1 is the circuitry block schematic diagram of an embodiment of the present invention.
Fig. 2 is the circuit diagram of Fig. 1.
Wherein, 1 is switch unit, and 2 be MCU power circuit, and 3 be power supply unit, and 4 be charging interface, and 5 be charging circuit, 6
To protect circuit, 7 be microprocessor, and 8 be first switch circuit, and 9 be second switch circuit, and U1 is decompression chip, and U2 is charging
Chip, U3 are Li battery protection IC.
Specific embodiment
As depicted in figs. 1 and 2, microprocessor work control circuit includes switch unit 1, MCU power circuit 2, power supply list
Member 3, the output end of power supply unit 3 is electrically connected with the input terminal of MCU power circuit 2, the output end and Wei Chu of MCU power circuit 2
The power end electrical connection of device 7 is managed, switch unit 1 is electrically connected with the enable end of MCU power circuit 2, and the output end of microprocessor 7 is logical
First switch circuit 8 is crossed to be electrically connected with the enable end of MCU power circuit 2.In the present embodiment, power supply unit 3 is key.
When switch unit 1 does not issue start-up operation signal to MCU power circuit 2 (when key unclamps), entire electricity
Road is to disconnect.When switch unit 1 issues start-up operation signal to MCU power circuit 2 (when pressing key pressing), MCU power supply
The enable end of circuit 2 is raised, and MCU power circuit 2 is started to work, and power supply unit 3 passes through MCU power circuit 2 to microprocessor 7
Power supply, microprocessor 7 work.In addition, microprocessor 7 can be incited somebody to action by its output end after switch unit 1 sends working signal
First switch circuit 8 is connected, so that the enable end of MCU power circuit 2 is drawn high, even if so that switch unit 1 at this time
Stopping transmission working signal (key release) microprocessor 7 will not stop working.It is unclamped in key and microprocessor 7 does not need
When work, first switch circuit is truncated by its output end for microprocessor 7, so that MCU power circuit 2 is enabled
End drags down, so that power supply unit 3 stops powering by MCU power circuit 2 to microprocessor 7, realizes entire circuit system quiet
The zero-power of state.
The utility model further includes second switch circuit 9, said supply unit 3 be it is rechargeable, further include charging interface 4 and
Charging circuit 5, charging interface 4 are electrically connected by charging circuit 5 with the input terminal of power supply unit 3；Charging interface 4 is also opened with second
The input terminal on powered-down road 9 is electrically connected, and the first output end of second switch circuit 9 is electrically connected with the enable end of MCU power circuit 2,
The second output terminal of second switch circuit 9 is electrically connected with the input terminal of MCU power circuit 2.
When not charging, power supply unit 3 is powered to entire circuit；When charging interface 4 is connected with the mains, second switch circuit
9 conductings, the enable end of MCU power circuit 2 are raised, and charging circuit 5 passes sequentially through second while charging to power supply unit 3
Switching circuit 9, MCU power circuit are powered to microprocessor 7, and microprocessor 7 no longer takes electricity from power supply unit 3, to realize fast
Speed is fully charged.
Microprocessor work control circuit further includes protection circuit 6, and charging circuit 5 passes through protection circuit 6 and power supply unit 3
Electrical connection.Protection circuit 6 can protect power supply unit 3, extend 3 service life of power supply unit, while safety is good.
The MCU power circuit 2 includes decompression chip U1 and resistance R1, and the enable end of decompression chip U1 is connect by resistance R1
The output end on ground, decompression chip U1 is electrically connected with the power end of microprocessor 7, the first end of switch unit 1, power supply unit 3
Output end passes through diode D2 and is electrically connected with the input terminal for being depressured chip U1；The second end of switch unit 1 passes through diode D3
It is electrically connected with the enable end of decompression chip U1；The first switch circuit 8 includes resistance R2 and diode D4, microprocessor 7
Output end passes sequentially through resistance R2, diode D4 and is electrically connected with the enable end for being depressured chip U1.
Microprocessor work control circuit further includes second switch circuit 9, and the second switch circuit 9 includes diode D1
With diode D, the charging circuit 5 includes charging chip U2, and the first end of charging interface 4 is single by charging chip U2 and power supply
The first end electrical connection of member 3, the anode of diode D5, the anode of diode D1 are electrically connected with the first end of charging interface 4, and two
The cathode of pole pipe D5 is electrically connected with the enable end of decompression chip U1, and the input terminal of the cathode and decompression chip U1 of diode D1 is electrically connected
It connects；The second end of charging interface 4, the second end of power supply unit 3 are grounded.
Said supply unit 3 is charged lithium cells, and the protection circuit 6 includes that the lithium battery being connected with power supply unit 3 is protected
Protect chip U3.
The input terminal of the decompression chip U1 is grounded by capacitor C3.Between the output end and ground of the decompression chip U1 simultaneously
It is connected to capacitor C1 and capacitor C2.The input terminal of the charging chip U2 is grounded by capacitor C5.The output of the charging chip U2
Between end and ground and it is connected to capacitor C6 and capacitor C7.For filtering clutter signal.
Specifically, the working principle of the utility model is as follows:
1, it being unclamped in key, microprocessor 7 does not work, also in the case where no charging, diode diode D3, D4,
D5 is not turned on, and the decompression enable end chip U1 (the 3rd foot O/F) is not raised, and decompression chip U1 does not work, entire circuit
It is disconnected with power supply unit 3, without power consumption；After key pressing, the enable end (the 3rd foot O/F) of D3 conducting, decompression chip U1 is drawn high,
It is depressured chip U1 work, battery (BAT+1) is depressured by D2 and is powered at Vout to microprocessor 7, and microprocessor 7 is drawn high after working
The I/O mouth of D4 connection continue working decompression chip U1 also can after key release；After microprocessor 7 completes all working,
The I/O mouth for dragging down D4 makes decompression chip U1 stop working, disconnects the power supply of microprocessor 7, be restored to entire circuit zero-power
State is again started up work by key pressing until next time.
2, when charging interface 4 plugs charging cable, power supply unit 3(charged lithium cells) it is carried out by charging chip U2
Charging, U3 is Li battery protection IC, while charge power supply is powered by D1 to the input pin Vin of decompression chip U1, due to D2
The voltage of negative terminal is higher than anode, so D2 is not turned on, power supply unit 3 can not give decompression chip U1 power supply, to not consume battery
Electricity；Charge power supply draws high the enabled foot O/F of decompression chip U1 by D5, makes to be depressured chip U1 work, microprocessor 7 and rear end
Charging indicator light is directly powered by charge power supply, and therefore, the speed that power supply unit 3 charges is faster.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than limitation, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection scope of the utility model.
Claims (10)
1. a kind of microprocessor work control circuit, including switch unit (1), MCU power circuit (2), power supply unit (3) supply
The output end of electric unit (3) is electrically connected with the input terminal of MCU power circuit (2), the output end and Wei Chu of MCU power circuit (2)
Manage the power end electrical connection of device (7), which is characterized in that switch unit (1) is electrically connected with the enable end of MCU power circuit (2), micro-
The output end of processor (7) is electrically connected by first switch circuit (8) with the enable end of MCU power circuit (2).
2. microprocessor work control circuit as described in claim 1, which is characterized in that it further include second switch circuit (9),
Said supply unit (3) is rechargeable, further includes charging interface (4) and charging circuit (5), and charging interface (4) passes through charging electricity
Road (5) is electrically connected with the input terminal of power supply unit (3)；Input terminal of the charging interface (4) also with second switch circuit (9) is electrically connected
It connects, the first output end of second switch circuit (9) is electrically connected with the enable end of MCU power circuit (2), second switch circuit (9)
Second output terminal be electrically connected with the input terminal of MCU power circuit (2).
3. microprocessor work control circuit as claimed in claim 2, which is characterized in that further include protection circuit (6), charging
Circuit (5) is by protecting circuit (6) to be electrically connected with power supply unit (3).
4. microprocessor work control circuit as described in any one of claims 1 to 3, which is characterized in that the MCU power supply electricity
Road (2) includes decompression chip (U1) and resistance R1, and the enable end of decompression chip (U1) is grounded by resistance R1, is depressured chip (U1)
Output end be electrically connected with the power end of microprocessor (7), the first end of switch unit (1), the output end of power supply unit (3) are equal
It is electrically connected by diode D2 with the input terminal of decompression chip (U1)；The second end of switch unit (1) passes through diode D3 and drop
Press the enable end electrical connection of chip (U1)；The first switch circuit (8) includes resistance R2 and diode D4, microprocessor (7)
Output end pass sequentially through resistance R2, diode D4 be depressured chip (U1) enable end be electrically connected.
5. microprocessor work control circuit as claimed in claim 4, which is characterized in that
It further include second switch circuit (9), the second switch circuit (9) includes diode D1 and diode D5, the power supply
Unit (3) is rechargeable, further includes charging interface (4) and charging circuit (5),
The charging circuit (5) includes charging chip (U2), and the first end of charging interface (4) passes through charging chip (U2) and power supply
The first end of unit (3) is electrically connected, and anode, the anode of diode D1 of diode D5 is electric with the first end of charging interface (4)
The cathode of connection, diode D5 is electrically connected with the enable end of decompression chip (U1), the cathode of diode D1 and decompression chip (U1)
Input terminal electrical connection；The second end of charging interface (4), the second end of power supply unit (3) are grounded.
6. microprocessor work control circuit as claimed in claim 3, which is characterized in that said supply unit (3) is charging
Lithium battery, protection circuit (6) includes the Li battery protection IC (U3) being connected with power supply unit (3).
7. microprocessor work control circuit as claimed in claim 4, which is characterized in that the input of decompression chip (U1)
End is grounded by capacitor C3.
8. microprocessor work control circuit as claimed in claim 4, which is characterized in that the output of decompression chip (U1)
Between end and ground and it is connected to capacitor C1 and capacitor C2.
9. microprocessor work control circuit as claimed in claim 5, which is characterized in that the input of the charging chip (U2)
End is grounded by capacitor C5.
10. microprocessor work control circuit as claimed in claim 5, which is characterized in that the charging chip (U2) it is defeated
Between outlet and ground and it is connected to capacitor C6 and capacitor C7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920330650.0U CN209516686U (en) | 2019-03-15 | 2019-03-15 | A kind of microprocessor work control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920330650.0U CN209516686U (en) | 2019-03-15 | 2019-03-15 | A kind of microprocessor work control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209516686U true CN209516686U (en) | 2019-10-18 |
Family
ID=68187375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920330650.0U Active CN209516686U (en) | 2019-03-15 | 2019-03-15 | A kind of microprocessor work control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209516686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202473A (en) * | 2020-10-28 | 2021-01-08 | 衡阳市一鑫光电科技有限公司 | Cable fault detection device based on power line carrier |
| CN112285615A (en) * | 2020-10-27 | 2021-01-29 | 衡阳市一鑫光电科技有限公司 | Cable detection device capable of rapidly distinguishing fault position |
-
2019
- 2019-03-15 CN CN201920330650.0U patent/CN209516686U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285615A (en) * | 2020-10-27 | 2021-01-29 | 衡阳市一鑫光电科技有限公司 | Cable detection device capable of rapidly distinguishing fault position |
| CN112202473A (en) * | 2020-10-28 | 2021-01-08 | 衡阳市一鑫光电科技有限公司 | Cable fault detection device based on power line carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104348192A (en) | USB charger of electronic cigarette | |
| CN103812197B (en) | Mobile power supply | |
| CN106532801A (en) | Charging wake-up circuit for battery management system | |
| CN102999143B (en) | Intelligent control circuit of power adapter of notebook computer | |
| CN209516686U (en) | A kind of microprocessor work control circuit | |
| CN204243812U (en) | The quick charge device of mobile device battery | |
| CN209434916U (en) | A kind of protection board of high-power high-voltage lithium battery | |
| CN105490361A (en) | Intelligent charger with universal serial bus (USB) interface | |
| CN202153645U (en) | Electric device based on OTG interface charging | |
| CN206331538U (en) | Handheld POS terminal and its USB switching circuits | |
| CN203933057U (en) | A kind of portable multi-function portable power source | |
| CN103280850B (en) | Drive circuit with charger baby and multipurpose LED (light-emitting diode) functions | |
| CN206433242U (en) | A kind of high-end wind/solar hybrid street light controller | |
| CN206180647U (en) | Many mouthfuls of control circuit that charge and controlgear | |
| CN205301912U (en) | Electronic equipment circuit | |
| CN201207574Y (en) | Electric power adapter | |
| CN111697639A (en) | Microprocessor work control circuit | |
| CN207504636U (en) | A kind of projecting apparatus with power-off protection function | |
| CN203481886U (en) | Battery pack with pulse starting circuit | |
| CN203554005U (en) | A zero-power-consumption lithium battery management system capable of being powered up automatically | |
| CN202975963U (en) | Power adapter intelligent control circuit of laptop | |
| CN206640387U (en) | A kind of general-purpose aircraft intellectuality avionics emergency power supply management system | |
| CN207677490U (en) | A kind of adaptive inductive charging mobile power | |
| CN110138074A (en) | A kind of power supply circuit for electronic equipment and its control method | |
| CN106585408B (en) | A kind of electric power management circuit of electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |