CN103529725A - Startup and shutdown circuit capable of realizing zero-power consumption shutdown - Google Patents
Startup and shutdown circuit capable of realizing zero-power consumption shutdown Download PDFInfo
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- CN103529725A CN103529725A CN201310321214.4A CN201310321214A CN103529725A CN 103529725 A CN103529725 A CN 103529725A CN 201310321214 A CN201310321214 A CN 201310321214A CN 103529725 A CN103529725 A CN 103529725A
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Abstract
Provided is a startup and shutdown circuit capable of realizing zero-power consumption shutdown. The startup and shutdown circuit comprises a startup and shutdown management chip, an analog switch, an OR gate chip and an inverter. The output end of the analog switch is connected with the power supply end of the startup and shutdown management chip. The OR gate chip is used for controlling on and off of the analog switch. The OR gate chip comprises two input ends and one output end. A triggering signal generated by an embedded type electronic device startup and shutdown button is connected with one path of input phase of the OR gate chip via the inverter. A system startup and shutdown signal generated by the startup and shutdown management chip is connected with the other path of input end of the OR gate chip. The output end of the OR gate chip is connected with the control end of the analog switch. Different inputs of the OR gate chip are acquired so that power supply control of the whole startup and shutdown circuit is realized. After shutdown of an embedded type electronic device, working voltage of the startup and shutdown circuit can be cut off so that zero-power consumption shutdown is realized.
Description
Technical field
The present invention relates to EMBEDDED AVIONICS on/off circuit field, be particularly useful for only having on/off circuit still to need the EMBEDDED AVIONICS of work, specifically a kind of on/off circuit of realizing closedown zero power consumption after shutdown.
Background technology
At present, for EMBEDDED AVIONICS, the on/off circuit part that is absolutely necessary.The principle of work of on/off circuit is: at switching on and shutting down managing chip, obtain after operating voltage, if input end obtains effective trigger pip, chip output is understood corresponding output system starting-up signal or system closedown signal and is delivered to the power circuit in EMBEDDED AVIONICS Circuits System so, and equipment is correspondingly made start or shutdown action.
On/off circuit adopts normal power supply mode conventionally, and the operating voltage of switching on and shutting down managing chip remains unchanged always, so on/off circuit is still in normal operation after shutdown, equipment exists certain shutdown power consumption.
How to realize closedown zero power consumption with improving product performance and energy-saving and emission-reduction, for EMBEDDED AVIONICS, seem particularly important.
Summary of the invention
After the object of the invention is to be directed to shutdown, only have on/off circuit still in the EMBEDDED AVIONICS of work, to have the problem of certain shutdown power consumption, propose a kind of on/off circuit of realizing closedown zero power consumption.
Technical scheme of the present invention is: a kind of on/off circuit of realizing closedown zero power consumption, comprise switching on and shutting down managing chip, analog switch or door chip and phase inverter, and analoging switch output end is connected with the feeder ear of switching on and shutting down managing chip; Described or door chip is used for the break-make of control simulation switch; Described or door chip has two input ends and an output terminal, the trigger pip that EMBEDDED AVIONICS switching on and shutting down button produces after phase inverter with or door chip Yi road input and be connected, the system switching machine signal that switching on and shutting down managing chip produces with or another road input end of door chip be connected, or an output terminal of chip and the control end of analog switch are connected.
After the control end acquisition useful signal of analog switch, analog switch is in open mode, and switching on and shutting down managing chip will obtain operating voltage; When the control end place of analog switch is invalid signals, analog switch is in closed condition, and the operating voltage of switching on and shutting down managing chip is zero; When or a door chip obtain after effective input at least one road, output terminal will produce effective output, because this output terminal is connected with the control end of analog switch, so analog switch will be in open mode; When or the two-way input of door chip while being all invalid signals, analog switch is in closed condition.
Described phase inverter is for the level of switch machine button trigger pip.The input end of phase inverter is connected with the switching on and shutting down button trigger pip of EMBEDDED AVIONICS, output terminal with or door chip Yi road input be connected.When pressing switching on and shutting down button, phase inverter obtains a road and effectively inputs, and can produce accordingly that effective input is sent into or the input end of door chip; When switching on and shutting down button is in releasing orientation, the invalid output of corresponding generation send into or door chip input end.
Described analog switch output voltage is for connecting the also operating voltage of gauge tap machine managing chip, and the input voltage of this analog switch is by the battery of EMBEDDED AVIONICS Circuits System.
The system switching machine signal producing by the switching on and shutting down button trigger pip in collection EMBEDDED AVIONICS Circuits System and switching on and shutting down managing chip is realized the management to on/off circuit operating voltage, realizes the closedown zero power consumption of equipment.
Circuit of the present invention need to be embedded in the Circuits System of EMBEDDED AVIONICS, with the Circuits System collaborative work of equipment.
Described switching on and shutting down managing chip is for generation of the switching on and shutting down signal of system.The principle of work of switching on and shutting down managing chip is: at switching on and shutting down managing chip, obtains after operating voltage, and when input end obtains effective trigger pip, the corresponding generation system boot of output terminal signal; When input end obtains effective trigger pip again, output terminal produces system closedown signal.The every acquisition of input end is effective trigger pip once, and output terminal can produce system boot signal and systems off signal in compartment of terrain.
The power supply of on/off circuit derives from an analog switch of controlling with EN, the system switching machine signal that the trigger pip that switching on and shutting down button produces and on/off circuit produce forms disjunction gate Er road, be connected with the EN pin of voltage transitions chip, for unclamping the EN signal that maintains voltage transitions chip after key; Press switching on and shutting down button and keep, the signal that interior button produces during this period of time has two effects: an EN signal that is used as the short time is opened analog switch, and another sends into on/off circuit as starting-up signal; By or door chip for the break-make of control simulation switch, height definition according to different on/off circuits to input/output signal level, determining whether to increase phase inverter, the object that increases phase inverter also makes shutdown output rear or door that voltage transitions chip is quit work, and realizes closedown zero power consumption.
For conventional desk-top computer, all-in-one, industrial computer and embedded board apparatus such as computer, the present invention need to replace its on/off circuit power supply chip, and adds one or a chip OR.Trigger pip trigger after anti-phase as or door chip OR mono-tunnel input, switching on and shutting down signal Power ON/OFF as or another road input of door chip OR, or the output terminal of door chip OR is connected with the control end EN that enables of power supply chip.Power ON signal or/and press switching on and shutting down button (contact or elastic switch also can) and be or effective input of door chip OR, Power OFF signal or/and trip switch machine button (contact or elastic switch also can) belong to or the invalid input of a chip OR.Or a door chip OR is while obtaining effective input at least one road, produces effectively and exports; While obtaining the invalid input of two-way, produce invalid output.After shutdown, Power OFF and switching on and shutting down button are in disarmed state, and power supply chip stops Voltage-output, and equipment can be realized closedown zero power consumption.
The course of work of the present invention comprises the following steps:
(a) user, by after the switching on and shutting down button of EMBEDDED AVIONICS, can produce trigger pip and send into on/off circuit, and this effective trigger pip is sent into or the input end of door chip after phase inverter, or door chip obtains effectively input, produces effectively output;
(b) due to the control end of analog switch with or the output terminal of door chip be connected, the control end of analog switch, will be in open mode after obtaining useful signal, switching on and shutting down managing chip obtains operating voltage, on/off circuit is started working;
(c) because switching on and shutting down button is in down state, the input end of switching on and shutting down managing chip obtains after effective trigger pip, and generation system boot signal is sent into or another road input end of door chip and the Circuits System of EMBEDDED AVIONICS, device power-up;
(d) after user's trip switch machine button, trigger pip is disarmed state, in this correspondence or a door chip input end be disarmed state; Simultaneously, due to system boot signal as useful signal, send into or door chip another road input end, so or door chip output terminal be still useful signal, analog switch is in open mode, the operating voltage of switching on and shutting down managing chip remains unchanged, on/off circuit normal operation;
(e), after user's touch-switch machine button shuts down, on/off circuit is sent into or the input end of door chip as invalid signals producing system closedown signal; Meanwhile, switching on and shutting down button is in releasing orientation, with respect to or a door chip input end be also disarmed state, so or the output terminal of door chip produces invalid output and sends into analog switch, the operating voltage of switching on and shutting down managing chip is zero, and on/off circuit quits work, and equipment shutdown power consumption is zero.
, so still there is power consumption after shutdown in beneficial effect of the present invention: conventional desk-top computer, all-in-one, industrial computer and embedded board apparatus such as computer still need on/off circuit normal operation when off-mode.But these electronic equipments still need on/off circuit normal operation when off-mode, so still there is power consumption after shutdown.For this kind equipment, the present invention can be by adding switching on and shutting down managing chip, analog switch or door chip and phase inverter to form on/off circuit.This circuit can cut off the operating voltage of on/off circuit after equipment shutdown, realizes on/off circuit in the state of quitting work, and equipment power consumption after shutdown is zero.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Fig. 2 is realization flow figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.In Fig. 1, can realize the on/off circuit method for managing power supply of closedown zero power consumption.Core is the disjunction gate circuit of light line mark, by button trigger pip and switching on and shutting down signal, voltage transitions chip is realized to joint control.Realization flow figure of the present invention in Fig. 2, the concrete management method while being applied to built-in terminal.Built-in terminal is generally outside DC adapter power supply, sometimes also adds battery continuation of the journey, and the supply of the power supply of mainboard generally derives from DC-DC group.
Conventionally embedded-type electric pipeline equipment has independent on/off circuit, and this circuit is the operation for facility switching machine button according to user, correspondingly produces the Circuits System that system switching machine signal is sent into EMBEDDED AVIONICS, to realize device power-up and shutdown.The on/off circuit of common EMBEDDED AVIONICS adopts normal power supply mode, and whole Circuits System only has on/off circuit still in normal operation, so there is certain shutdown power consumption after shutdown.
The present invention realizes the thinking of closedown zero power consumption, is mainly after carrying out power-off operation, cuts off the operating voltage of switching on and shutting down managing chip, makes on/off circuit in the state of quitting work, and realizes closedown zero power consumption.In figure, VIN is the battery that is provided with of electronic equipment internal or the voltage of power supply adaptor.
Hardware implementation procedure: circuit of the present invention comprises switching on and shutting down managing chip, analog switch or door chip and phase inverter.
Switching on and shutting down managing chip, for generation of system switching machine signal, when chip obtains after operating voltage, can correspondingly produce system boot signal and systems off signal according to the trigger pip of input end, can adopt common I/O chip NCT6106D.The input end of switching on and shutting down managing chip is connected with the switching on and shutting down button trigger pip in EMBEDDED AVIONICS Circuits System, output terminal with or door chip Yi road input be connected and be sent to the power circuit in EMBEDDED AVIONICS Circuits System simultaneously.
Analog switch is for the operating voltage break-make of gauge tap machine managing chip, and it comprises road input ,Yi road output and a control end, as conventional analog switch DG2018.The input end of analog switch derives from the power circuit in EMBEDDED AVIONICS Circuits System, and output terminal is connected with the feeder ear of switching on and shutting down managing chip, control end with or door chip output terminal be connected.When or door chip produce after effectively output, analog switch will be in open mode, switching on and shutting down managing chip obtains operating voltage, on/off circuit is started working.
Or door chip is for the break-make of control simulation switch, this chip has two-way input He Yi road output, as conventional 74LS32.Switching on and shutting down button trigger pip in EMBEDDED AVIONICS Circuits System is sent into or door chip Yi road input end after anti-phase, the system switching machine signal that switching on and shutting down managing chip produces is sent into or another road input end of door chip, or the door output terminal of chip and the control end of analog switch are connected.When or a door chip obtain a road or two-way effectively after input, by producing effectively output, deliver to the control end of analog switch, thereby open analog switch.
Phase inverter, for the level of switch machine button trigger pip, can adopt conventional NPN triode MMBT9014 to carry out anti-phase.The input end of phase inverter derives from the switching on and shutting down button trigger pip in EMBEDDED AVIONICS Circuits System, output terminal with or door chip Yi road input be connected.Concrete connected mode is as Fig. 1.
Implementation procedure of the present invention: user is by after the switching on and shutting down button of EMBEDDED AVIONICS, can produce trigger pip and send into on/off circuit, this effective trigger pip is sent into or the input end of door chip after phase inverter, or door chip obtains effectively input, produces effectively output.
Due to the control end of analog switch with or the output terminal of door chip be connected, the control end of analog switch, will be in open mode after obtaining useful signal, switching on and shutting down managing chip obtains operating voltage, on/off circuit is started working.
Because switching on and shutting down button is in down state, the input end of switching on and shutting down managing chip obtains after effective trigger pip, and generation system boot signal is sent into or another road input end of door chip and the Circuits System of EMBEDDED AVIONICS, device power-up.
After user's trip switch machine button, trigger pip is disarmed state, in this correspondence or a door chip input end be disarmed state; Simultaneously, due to system boot signal as useful signal, send into or door chip another road input end, so or door chip output terminal be still useful signal, analog switch is in open mode, the operating voltage of switching on and shutting down managing chip remains unchanged, on/off circuit normal operation.
After user's touch-switch machine button shuts down, on/off circuit is sent into or the input end of door chip as invalid signals producing system closedown signal; Meanwhile, switching on and shutting down button is in releasing orientation, with respect to or a door chip input end be also disarmed state, so or the output terminal of door chip produces invalid output and sends into analog switch, the operating voltage of switching on and shutting down managing chip is zero, and on/off circuit quits work, and equipment shutdown power consumption is zero.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.Although the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on claims person of defining.
Claims (3)
1. can realize an on/off circuit for closedown zero power consumption, it is characterized in that comprising switching on and shutting down managing chip, analog switch or door chip and phase inverter, analoging switch output end is connected with the feeder ear of switching on and shutting down managing chip; Described or door chip is used for the break-make of control simulation switch; Described or door chip has two input ends and an output terminal, the trigger pip that EMBEDDED AVIONICS switching on and shutting down button produces after phase inverter with or door chip Yi road input and be connected, the system switching machine signal that switching on and shutting down managing chip produces with or another road input end of door chip be connected, or an output terminal of chip and the control end of analog switch are connected.
2. the on/off circuit of realizing closedown zero power consumption according to claim 1, is characterized in that the input end of phase inverter and the switching on and shutting down button trigger pip of EMBEDDED AVIONICS are connected, output terminal with or door chip Yi road input be connected.
3. the on/off circuit of realizing closedown zero power consumption according to claim 1, it is characterized in that described analog switch output voltage is for connecting the also operating voltage of gauge tap machine managing chip, the input voltage of this analog switch is by the battery of EMBEDDED AVIONICS Circuits System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321214.4A CN103529725A (en) | 2013-07-29 | 2013-07-29 | Startup and shutdown circuit capable of realizing zero-power consumption shutdown |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310321214.4A CN103529725A (en) | 2013-07-29 | 2013-07-29 | Startup and shutdown circuit capable of realizing zero-power consumption shutdown |
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| CN103529725A true CN103529725A (en) | 2014-01-22 |
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| CN201310321214.4A Pending CN103529725A (en) | 2013-07-29 | 2013-07-29 | Startup and shutdown circuit capable of realizing zero-power consumption shutdown |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105302319A (en) * | 2014-07-22 | 2016-02-03 | 中国长城计算机深圳股份有限公司 | Key locking control circuit and portable mobile terminal |
| CN107357413A (en) * | 2017-07-18 | 2017-11-17 | 山东超越数控电子有限公司 | A kind of method for effectively reducing adapter end power consumption under computer shutdown state |
| CN114138100A (en) * | 2021-12-02 | 2022-03-04 | 无锡睿勤科技有限公司 | Low-power-consumption startup and shutdown method, startup and shutdown circuit and intelligent terminal |
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| EP0604270A1 (en) * | 1992-12-22 | 1994-06-29 | STMicroelectronics S.A. | Power-on reset circuit with protection against power failures for an integrated circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105302319A (en) * | 2014-07-22 | 2016-02-03 | 中国长城计算机深圳股份有限公司 | Key locking control circuit and portable mobile terminal |
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| CN114138100A (en) * | 2021-12-02 | 2022-03-04 | 无锡睿勤科技有限公司 | Low-power-consumption startup and shutdown method, startup and shutdown circuit and intelligent terminal |
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Application publication date: 20140122 |