CN109189195A - A kind of intelligence system frequently powers off boot-strap circuit optimization device - Google Patents
A kind of intelligence system frequently powers off boot-strap circuit optimization device Download PDFInfo
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- CN109189195A CN109189195A CN201811259385.8A CN201811259385A CN109189195A CN 109189195 A CN109189195 A CN 109189195A CN 201811259385 A CN201811259385 A CN 201811259385A CN 109189195 A CN109189195 A CN 109189195A
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- 230000004044 response Effects 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 41
- 230000006837 decompression Effects 0.000 claims description 36
- 230000001360 synchronised effect Effects 0.000 claims description 19
- 230000001133 acceleration Effects 0.000 claims description 18
- 230000001012 protector Effects 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
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- 238000006243 chemical reaction Methods 0.000 description 1
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
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Abstract
A kind of intelligence system disclosed by the invention frequently powers off boot-strap circuit optimization device, is related to electronic product booting control field；It solves the problems, such as that electronic product can not power on to be switched on, drip irrigation device is: including: trigger unit, is coupled to PMIC to receive PMIC power on signal and export trigger signal；Control unit is coupled to external dc electricity to receive external power on signal and export control signal；Switch unit is respectively coupled to trigger unit to receive trigger signal, be coupled to control unit to receive control signal and output switching signal；VCC_SYST is coupled to switch unit to receive switching signal and in response to switching signal to be switched on；A kind of intelligence system of the invention frequently powers off boot-strap circuit optimization device, realizes that electronic product powers on the function being switched on.
Description
Technical field
The present invention relates to electronic product booting control fields, in particular to it is excellent that a kind of intelligence system frequently powers off boot-strap circuit
Makeup is set.
Background technique
As electronic product is more more and more universal, people also increasingly be unable to do without these and bring many convenient productions
Product.
Common PMIC(power management integrated circuit in electronic product), when PMIC is to VCC_SYST(central processing unit system
System) when being powered, VCC_SYST can directly be switched on；Since the attribute of PMIC is: for VCC_SYST power supply
PMIC not will disconnect, therefore cannot really shut down in such case.
Accordingly, this general PMIC cannot really shut down when for VCC50_SYST power supply, but
Being is that can shut down to power off VCC_SYST, but POWER_KEY(is needed to switch from battery feeder ear from battery feeder ear
Switch) time for pressing about several hundred MS to 1S could be switched on, and commonly many electronic products exactly need to power on to open client
The function of machine, therefore it is unable to satisfy the demand of client, there is improved space.
Summary of the invention
The object of the present invention is to provide a kind of intelligence systems frequently to power off boot-strap circuit optimization device, realizes on electronic product
The electricity i.e. function of booting.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of intelligence system frequently powers off boot-strap circuit optimization device, comprising:
Trigger unit is coupled to PMIC to receive PMIC power on signal and export trigger signal；
Control unit is coupled to external dc electricity to receive external power on signal and export control signal；
Switch unit is respectively coupled to trigger unit to receive trigger signal, be coupled to control unit to receive control signal simultaneously
Output switching signal；VCC_SYST is coupled to switch unit to receive switching signal and in response to switching signal to be switched on；
When trigger unit receives the trigger signal of PMIC power on signal output high level, conversely, the low level triggering letter of output
Number；When control unit receives the control signal of external power on signal output high level, conversely, the low level control letter of output
Number；
The switching signal of high level is exported when switch unit receives the control signal of low level trigger signal and high level,
VCC_SYST booting；Conversely, VCC_SYST is not switched on；
Wherein define: PMIC is power management integrated circuit, and VCC_SYST is central processing unit system.
By using above-mentioned technical proposal, once trigger unit receives the triggering letter of PMIC power on signal output high level
Number and control unit export low level signal, VCC_SYST booting, namely once trigger unit power on and trigger unit respond when
Between be less than control unit and export the high level signal time, VCC_SYST realization is powered on and is switched on, and meets client on electronic product
Electricity is the demand of power up function.
The present invention is further arranged to: the switch unit is switching transistor.
By using above-mentioned technical proposal, using switching transistor work cut-off, saturated characteristic, also that is, circuit
Cutting and conducting, realize the output of the high and low level signal of switch unit.
The present invention is further arranged to: described control unit includes:
Decompression portion is coupled to external dc electricity to receive external power on signal and output buck signal；
It is depressured control unit, is coupled to decompression portion to receive buck signal and export control signal；
When decompression portion receives the buck signal of external power on signal output high level, conversely, then exporting low level buck signal；
When decompression control unit receives the control signal of the buck signal output high level of high level, conversely, then exporting low level control
Signal processed.
By using above-mentioned technical proposal, under no cell condition, decompression portion realizes the change to voltage swing to adapt to
The voltage value needed for current circuit；Decompression control unit is matched with decompression portion and realizes control in the case where response external power on signal
The output of the high and low control signal of unit processed.
The present invention is further arranged to: the decompression portion is synchronous buck converter.
By using above-mentioned technical proposal, synchronous buck converter is widely used in electric appliance and electronic field, conversion effect
Rate is high, and installation occupancy is small in size, is suitable for electronic product.
The present invention is further arranged to: the decompression control unit includes:
It is depressured charging circuit, is coupled to decompression portion to receive buck signal and in response to buck signal to export control signal；
Be depressured charge protector, be series at decompression charging circuit prevent it is reversed to burn out decompression charging circuit.
By using above-mentioned technical proposal, once the buck signal that decompression charging circuit receives high level makes an immediate response,
Response time is short；The problem of decompression charge protector prevents decompression charging circuit place branch reversed to burn out component.
The present invention is further arranged to: the decompression charge protector is switching diode.
By using above-mentioned technical proposal, switching diode is a kind of small-sized cache switching diodes；One on-off ratio
Relatively rapidly, using the one-way conduction of its own, realize that circuit prevents reversed function；Secondly be easy to get, it is cheap.
The present invention is further arranged to: described control unit includes:
Test section is coupled to external dc electricity to receive external power on signal and export detection letter for detecting external action
Number；
Control unit is detected, is coupled to test section to receive detection signal and in response to detection signal to export control signal.
When test section receives external power on signal and detects that external action then exports the detection signal of high level, instead
It, exports low level detection signal；When the detection signal that detection control unit receives high level then exports the control of high level
Signal, conversely, exporting low level control signal.
By using above-mentioned technical proposal, control unit is detected in the case where receiving external power on signal, once itself is by outer
Portion's movement then makes an immediate response, and cooperates the control signal of detection control unit output high level to start subsequent conditioning circuit.
The present invention is further arranged to: the test section is acceleration transducer.
By using above-mentioned technical proposal, one acceleration transducer has low-power consumption, high-precision performance；Secondly volume
It is small, it is suitable for portable handheld device.
The present invention is further arranged to: the detection control unit includes:
Charging circuit is detected, is coupled to test section to receive detection signal and in response to detection signal to export control signal；
Detect charge protector, be series at detection charging circuit prevent it is reversed to burn out detection charging circuit.
By using above-mentioned technical proposal, once the detection signal that detection charging circuit receives high level makes an immediate response,
Response time is short；The problem of detection charge protector prevents detection charging circuit place branch reversed to burn out component.
The present invention is further arranged to: the detection charge protector is switching diode.
By using above-mentioned technical proposal, switching diode is a kind of small-sized cache switching diodes；One on-off ratio
Relatively rapidly, using the one-way conduction of its own, realize that circuit prevents reversed function；Secondly be easy to get, it is cheap.
In conclusion the invention has the following advantages: realize electronic product power on the function being switched on, meet client
The demand of i.e. power up function is powered on to electronic product.
Detailed description of the invention
Fig. 1 is the circuit diagram of decompression portion in embodiment one；
Fig. 2 is the circuit diagram that control unit, trigger unit are depressured in embodiment one；
Fig. 3 is the circuit diagram of control unit in embodiment two, trigger unit.
In figure, 1, trigger unit；2, control unit；21, decompression portion；22, it is depressured control unit；221, it is depressured charging circuit；
222, it is depressured charge protector；23, test section；24, control unit is detected；241, charging circuit is detected；242, charger is detected
Protection circuit；3, switch unit.
Specific embodiment
Below in conjunction with attached drawing 1-3, invention is further described in detail.
Embodiment one:
Referring to Fig.1, Fig. 2, a kind of intelligence system disclosed in the present embodiment frequently power off boot-strap circuit optimization device, including triggering is single
Member 1, control unit 2, the switch unit 3 coupled respectively with trigger unit 1 and control unit 2.
Do not marked in trigger unit 1(figure), PMIC is coupled to receive PMIC power on signal and export trigger signal.Control
Unit 2 is coupled to external dc electricity to receive external power on signal and export control signal.Switch unit 3 is respectively coupled to touching
Bill member 1 is to receive trigger signal, be coupled to control unit 2 to receive control signal and output switching signal；VCC_SYST coupling
Switch unit 3 is connected to receive switching signal and in response to switching signal to be switched on.Wherein define: PMIC is integrated for power management
Circuit, VCC_SYST are central processing unit system.
When trigger unit 1 receives the trigger signal of PMIC power on signal output high level, conversely, exporting low level touching
It signals；When control unit 2 receives the control signal of external power on signal output high level, conversely, exporting low level control
Signal processed.The switch of high level is exported when switch unit 3 receives the control signal of low level trigger signal and high level
Signal, VCC_SYST booting；Conversely, VCC_SYST is not switched on.
Referring to Fig.1, control unit 2 includes being coupled to external dc electricity to receive external power on signal and output buck signal
Decompression portion 21, be coupled to decompression portion 21 with receive buck signal and export control signal decompression control unit 22.Decompression control
Portion 22 includes being coupled to decompression portion 21 to receive buck signal and export the decompression charging of control signal in response to buck signal
Circuit 221, be series at decompression charging circuit 221 prevent it is reversed with burn out decompression charging circuit 221 decompression charge protector
222。
Decompression portion 21 is synchronous buck converter A, the model TPS54620 of synchronous buck converter A.It is depressured charger
Protection circuit 222 is switching diode D1, the model 1N4148 of switching diode D1.Switch unit 3 is switching transistor Q1, is opened
Pass triode Q1 is NPN type triode, and its model MMBT3904.
1 foot of synchronous buck converter A is connect with one end of resistance R1, and the other end of resistance R1 is connected to ground, synchronous drop
2 feet, 3 feet, 15 feet of pressure converter A are connected to ground.Direct current of 4 feet, 5 feet of synchronous buck converter A with external 12V
Connection, branch circuit parallel connection where capacitor C1, C2, C3, C4, and one end of capacitor C1, C2, C3, C4 are connected to ground, capacitor C1, C2,
The other end of C3 is electrically connected with the direct current of external 12V, the other end of capacitor C4 respectively with 6 feet of synchronous buck converter A, outer
The direct current of portion 12V is electrically connected；Wherein the numerical value of capacitor C1 is 680uF, and the numerical value of capacitor C2 is 10uF, the numerical value of capacitor C3 is
10uF, capacitor C4 numerical value be 0.1uF, the resistance value of resistance R1 is 100K.
14 feet, 10 feet of synchronous buck converter A are vacancy, and one end of capacitor C6, C7, C8 are connected to ground, capacitor C6
The other end connect with one end of resistance R2, the other end of resistance R2 is connect with 8 feet of synchronous buck converter A, capacitor C7's
The other end is connect with the other end of 8 feet of synchronous buck converter A, resistance R2 respectively, the other end and synchronous buck of capacitor C8
9 feet of converter A connect；The numerical value of capacitor C6 is 82uF, the numerical value of capacitor C7 is 0.01uF, the numerical value of capacitor C8 is
The resistance value of 0.01uF, resistance R2 are 1.62K.
13 feet of synchronous buck converter A are connect with one end of capacitor C5, one end of capacitor C5 respectively with inductance L1 one
The 11 feet connection at end, 12 feet of synchronous buck converter A, synchronous buck converter A.The other end of inductance L1 respectively with resistance R4
One end, one end of capacitor C9, capacitor C10 one end connection, the other end of resistance R4 respectively with one end of resistance R3, synchronous drop
7 feet of pressure converter A connect, and the other end of resistance R3 is connected to ground.The other end of capacitor C9 is another with capacitor C10 respectively
End, connect；The numerical value of capacitor C5 is 0.1uF, the numerical value of capacitor C8 is 47uF, the numerical value of capacitor C9 is 220uF, resistance R2's
Resistance value is 41.2K, and the numerical value of inductance L1 is 3.6UH.Wherein Fig. 1 middle-end is the positive terminal of the direct current of external 12V, the b in Fig. 2
End is the positive terminal of PMIC, the positive terminal that the end W in Fig. 2 is VCC_SYST.
The anode of switching diode D1 is connect with the end VBAT+, the cathode of switching diode D1 respectively with one end of resistance R9,
One end of capacitor C12 connects, and the other end of capacitor C12 is connect with one end of resistance R10.
When synchronous buck converter A is electrically connected with the direct current of outside 12V the buck signal of output high level, conversely, then defeated
Low level buck signal out.
Referring to Fig. 2, trigger unit 1 include resistance value be 47K resistance R8, resistance value be 100K resistance R5, resistance value be 1K's
Capacitor C11, the triode Q1 that resistance R7 that resistance R6, resistance value are 510K, numerical value are 1uF；Triode Q2 is NPN type triode,
And its model MMBT3904.
The positive terminal of one end of resistance R8 and power management integrated circuit connects, the other end of resistance R8 respectively with capacitor
The base stage connection of one end of C11, one end of resistance R5, triode Q1, the other end of capacitor C11, the other end of resistance R5, three poles
The emitter of pipe Q1 is connected to ground.The collector of triode Q1 is connect with one end of resistance R6, the other end difference of resistance R6
It is connect with the base stage of the other end of resistance R9, one end of resistance R7, switching transistor Q2, the other end of resistance R7, three pole of switch
The emitter of pipe Q2 is connected to ground, the collector and VCC_SYST of switching transistor Q2.
The working principle of the present embodiment: the direct current of external 12V drops to VBATT+ after synchronous buck converter A and is about
4.1V or so, VBATT+ are powered on and are charged to capacitor C12, and the base stage of switching transistor Q1 adds a voltage, so that switch
The collector (namely the end W) of triode Q1 drags down；Once PMIC is powered on, the base stage of triode Q2 adds a voltage, triode Q2
Collector drag down, then the base stage of switching transistor Q1 drags down, then the collector (namely the end W) of switching transistor Q1 is restored to height
Voltage；Therefore only the collector (namely the end W) of switching transistor Q1 need to be dragged down the time be greater than booting required for press the time,
Realize VCC_SYST booting.
Embodiment two:
Referring to Fig. 3, the difference is that by the component in the control unit 2 of embodiment one in embodiment one and embodiment two
Replacement.Control unit 2 includes being coupled to external dc electricity to receive external power on signal and for detecting external action to export
It detects the test section 23 of signal, be coupled to test section 23 to receive detection signal and in response to detection signal to export control signal
Detection control unit 24.Detection control unit 24 include be coupled to test section 23 with receive detection signal and in response to detection signal with
Output control signal detection charging circuit 241, be series at detection charging circuit 241 prevent it is reversed to burn out detection charging circuit
241 detection charge protector 242.
Test section 23 is acceleration transducer B, the model BMA250 of acceleration transducer B.Detect charge protector
242 be switching diode D2, wherein the model 1N4148 of switching diode D2.
2 feet of acceleration transducer B, 12 feet, 5 foot vacancy；1 foot of acceleration transducer B and one end of resistance R11 connect
It connects, the other end of resistance R11 is electrically connected with the direct current of outside 12V.10 feet of acceleration transducer B and one end of resistance R10 connect
It connects, the other end of resistance R10 is electrically connected with the direct current of 11 feet of acceleration transducer B, outside 12V respectively, acceleration transducer B
3 feet be electrically connected with the direct current of outside 12V.
7 feet of acceleration transducer B be electrically connected respectively with the direct current of one end of capacitor C14, outside 12V, acceleration pass
8 feet of sensor B, 9 feet of acceleration transducer B are connected to ground, and the other end of capacitor C14, one end of capacitor C15 connect with ground
It connects, the other end of capacitor C15 is electrically connected with the direct current of outside 12V；Wherein in Fig. 3, the end c, the end d, the end e are the straight of external 12V
The positive terminal of galvanic electricity.Wherein resistance R10 resistance value and resistance R10 resistance value are 10K, and the numerical value of capacitor C14 is 100nF, capacitor C15
Numerical value be 1uF.
When acceleration transducer B is electrically connected and acceleration transducer B detects shock or vibration with the direct current of outside 12V
The detection signal of high level is then exported, conversely, exporting low level detection signal.
Detecting charging circuit 241 includes capacitor C12, capacitor C13 and resistance R9.6 feet of acceleration transducer B respectively with open
One end connection of the anode, capacitor C12 of diode D2 is closed, the other end of capacitor C12 is connected to ground, the cathode of switching diode D2
It is connect respectively with one end of one end of capacitor C13, resistance R9, the other end of capacitor C13 is connected to ground, the other end point of resistance R9
It is not connect with the base stage of the other end of resistance R6, one end of resistance R7, switching transistor Q1, wherein the numerical value of capacitor C12 is
10nF, capacitor C13 numerical value be 1uF.
The working principle of the present embodiment: acceleration transducer B is electrically connected with the direct current of outside 12V and acceleration transducer B
Detect shock or vibration, then the base stage of switching transistor Q1 adds a voltage so that switching transistor Q1 collector (
That is the end W) it drags down；Once PMIC is powered on, the base stage of triode Q2 adds a voltage, and the collector of triode Q2 is dragged down, then switched
The base stage of triode Q1 drags down, then the collector (namely the end W) of switching transistor Q1 is restored to high voltage；Therefore it need to will only switch
The collector (namely the end W) of triode Q1 drags down the time greater than pressing the time required for being switched on, i.e. realization VCC_SYST is switched on.
More than, above embodiments are only described in detail to the technical solution to the application, but above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention, should not be construed as limiting the invention.This technology
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by the technical staff in field, should all cover in this hair
Within bright protection scope.
Claims (10)
1. a kind of intelligence system frequently powers off boot-strap circuit optimization device characterized by comprising
Trigger unit (1) is coupled to PMIC to receive PMIC power on signal and export trigger signal；
Control unit (2) is coupled to external dc electricity to receive external power on signal and export control signal；
Switch unit (3) is respectively coupled to trigger unit (1) to receive trigger signal, be coupled to control unit (2) to receive control
Signal processed and output switching signal；VCC_SYST is coupled to switch unit (3) to receive switching signal and in response to switching signal
With booting；
When trigger unit (1) receives the trigger signal of PMIC power on signal output high level, conversely, exporting low level triggering
Signal；When control unit (2) receives the control signal of external power on signal output high level, conversely, exporting low level control
Signal processed；
The switch letter of output high level when switch unit (3) receives the control signal of low level trigger signal and high level
Number, VCC_SYST booting；Conversely, VCC_SYST is not switched on；
Wherein define: PMIC is power management integrated circuit, and VCC_SYST is central processing unit system.
2. a kind of intelligence system according to claim 1 frequently powers off boot-strap circuit optimization device, it is characterized in that: described open
Closing unit (3) is switching transistor.
3. a kind of intelligence system according to claim 1 frequently powers off boot-strap circuit optimization device, it is characterized in that: the control
Unit (2) processed includes:
Decompression portion (21) is coupled to external dc electricity to receive external power on signal and output buck signal；
It is depressured control unit (22), is coupled to decompression portion (21) to receive buck signal and export control signal；
When decompression portion (21) receive the buck signal of external power on signal output high level, conversely, then exporting low level decompression
Signal；When decompression control unit (22) receives the control signal of the buck signal output high level of high level, conversely, then exporting low
The control signal of level.
4. a kind of intelligence system according to claim 3 frequently powers off boot-strap circuit optimization device, it is characterized in that: the drop
Splenium (21) is synchronous buck converter.
5. a kind of intelligence system according to claim 3 frequently powers off boot-strap circuit optimization device, it is characterized in that: the drop
Pressure control unit (22) include:
It is depressured charging circuit (221), is coupled to decompression portion (21) to receive buck signal and export control in response to buck signal
Signal processed；
Be depressured charge protector (222), be series at decompression charging circuit (221) prevent it is reversed to burn out decompression charging circuit
(221).
6. a kind of intelligence system according to claim 5 frequently powers off boot-strap circuit optimization device, it is characterized in that: the drop
Pressing charge protector (222) is switching diode.
7. a kind of intelligence system according to claim 1 frequently powers off boot-strap circuit optimization device, it is characterized in that: the control
Unit (2) processed includes:
Test section (23) is coupled to external dc electricity to receive external power on signal and for detecting external action to export detection
Signal；
It detects control unit (24), is coupled to test section (23) to receive detection signal and export control letter in response to detection signal
Number；
When test section (23) receives external power on signal and detects that external action then exports the detection signal of high level, instead
It, exports low level detection signal；When the detection signal that detection control unit (24) receives high level then exports high level
Signal is controlled, conversely, exporting low level control signal.
8. a kind of intelligence system according to claim 7 frequently powers off boot-strap circuit optimization device, it is characterized in that: the inspection
Survey portion (23) is acceleration transducer.
9. a kind of intelligence system according to claim 7 frequently powers off boot-strap circuit optimization device, it is characterized in that: the inspection
Surveying control unit (24) includes:
It detects charging circuit (241), is coupled to test section (23) to receive detection signal and in response to detection signal to export control
Signal processed；
Detect charge protector (242), be series at detection charging circuit (241) prevent it is reversed to burn out detection charging circuit
(241).
10. a kind of intelligence system according to claim 9 frequently powers off boot-strap circuit optimization device, it is characterized in that: described
Detecting charge protector (242) is switching diode.
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| CN201811259385.8A CN109189195B (en) | 2018-10-26 | 2018-10-26 | Frequent outage start-up circuit optimizing device of intelligent system |
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| CN201811259385.8A CN109189195B (en) | 2018-10-26 | 2018-10-26 | Frequent outage start-up circuit optimizing device of intelligent system |
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| CN205986311U (en) * | 2016-07-25 | 2017-02-22 | 深圳市大公检测技术有限公司 | Gas chromatograph's power protection devices |
| CN207369007U (en) * | 2017-08-11 | 2018-05-15 | 南京启越机电设备有限公司 | Soft-touch control |
| CN107769318A (en) * | 2017-11-03 | 2018-03-06 | 深圳锐源微电子科技有限公司 | Charging circuit, device, intelligent terminal and charging method |
| CN207516929U (en) * | 2017-11-23 | 2018-06-19 | 深圳市柔宇科技有限公司 | Switching on and shutting down control circuit and mobile terminal |
| CN209132717U (en) * | 2018-10-26 | 2019-07-19 | 深圳市宇通联发科技有限公司 | A kind of intelligence system frequently powers off boot-strap circuit optimization device |
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