CN111077974B - Remote wake-up power supply device based on differential communication - Google Patents
Remote wake-up power supply device based on differential communication Download PDFInfo
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- CN111077974B CN111077974B CN201911079331.8A CN201911079331A CN111077974B CN 111077974 B CN111077974 B CN 111077974B CN 201911079331 A CN201911079331 A CN 201911079331A CN 111077974 B CN111077974 B CN 111077974B
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- power supply
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- operational amplifier
- controllable power
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- 238000004891 communication Methods 0.000 title claims abstract description 35
- 239000003990 capacitor Substances 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000002618 waking effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 101000831940 Homo sapiens Stathmin Proteins 0.000 description 3
- 102100024237 Stathmin Human genes 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
- H03K5/2472—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using field effect transistors
- H03K5/2481—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using field effect transistors with at least one differential stage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/221—General power management systems
Abstract
The invention provides a remote wake-up power supply device based on differential communication, which comprises: a controllable power supply; the differential comparator remotely receives a starting command signal in a differential form through a differential communication bus and amplifies the starting command signal; the incremental integrator is connected with the differential comparator and is used for generating a corresponding driving control signal according to the amplified starting command signal; and the driver is connected with the incremental integrator and the controllable power supply and is used for waking up the controllable power supply according to the driving control signal. The invention is suitable for remote wake-up of the power supply, and has simple structure and lower power consumption.
Description
Technical Field
The invention relates to the technical field of power control, in particular to a remote wake-up power supply device based on differential communication.
Background
Electronic devices are widely applied in our life and production, and have more reasonable and humanized designs along with development of technology, for example, more and more electronic devices have a wake-up function, so that the electronic devices can be quickly awakened to enter a working state.
Currently, wake-up devices are typically configured to implement wake-up functions, and are available for different electronic devices having a variety of different wake-up devices. The device comprises a main power supply module which is started by adding a coprocessor and an acquisition unit, and a wake-up device for electronic equipment such as a mobile phone, a tablet personal computer and the like; a wake-up device for television products, which is provided with a main power supply started by a standby circuit with a multi-signal detection and multiplexer of the standby power supply; there is a wake-up device for products such as home projectors, etc. that is controlled to start a standby power supply by an inductive signal.
However, most of the circuits in the wake-up device have standby power, which is easy to generate additional power consumption, and the device is complicated by adding a processor or a controller.
Disclosure of Invention
The present invention aims to solve at least to some extent one of the technical problems in the above-described technology. Therefore, the invention aims to provide a remote wake-up power supply device based on differential communication, which is applicable to remote wake-up of a power supply, and has the advantages of simple structure and lower power consumption.
To achieve the above object, an embodiment of the present invention provides a remote wake-up power supply device based on differential communication, including: a controllable power supply; the differential comparator remotely receives a starting command signal in a differential form through a differential communication bus and amplifies the starting command signal; the incremental integrator is connected with the differential comparator and is used for generating a corresponding driving control signal according to the amplified starting command signal; and the driver is connected with the increment integrator and the controllable power supply and is used for waking up the controllable power supply according to the driving control signal.
According to the remote wake-up power supply device based on differential communication, the differential comparator is used for receiving and amplifying the starting command signal in a differential mode, the increment integrator is used for generating a corresponding driving control signal according to the amplified starting command signal, and finally the driver is used for waking up the controllable power supply according to the driving control signal, so that the remote wake-up power supply device based on differential communication is suitable for remote wake-up of the power supply, and is simple in structure and low in power consumption.
In addition, the remote wake-up power supply device based on differential communication according to the above embodiment of the present invention may further have the following additional technical features:
further, the remote wake-up power supply device based on differential communication further comprises: the self-locking control module is respectively connected with the controllable power supply and the driver, and is used for outputting corresponding locking signals to the driver according to the awakening or standby state of the controllable power supply so as to lock the awakening or standby state of the controllable power supply.
Further, the differential comparator comprises an operational amplifier, wherein the non-inverting input end of the operational amplifier is connected to a first differential line of the differential communication bus through a first resistor, the inverting input end of the operational amplifier is connected to a second differential line of the differential communication bus through a second resistor and is connected with the output end of the operational amplifier through a third resistor, and the power end of the operational amplifier is connected to a preset power supply.
Further, the increment integrator comprises a fourth resistor, a first diode and a first polarity capacitor, one end of the fourth resistor is connected with the output end of the operational amplifier, the anode of the first diode is connected with the other end of the fourth resistor, the anode of the first polarity capacitor is connected with the cathode of the first diode, the cathode of the first polarity capacitor is grounded, and the cathode of the first diode is used as the driving control signal output end of the increment integrator.
Further, the driver comprises an NMOS tube, the grid electrode of the NMOS tube is connected with the driving control signal output end of the increment integrator, and the source electrode of the NMOS tube is grounded.
Further, the controllable power supply comprises a switching voltage regulating chip, and a switching control pin of the switching voltage regulating chip is connected with the drain electrode of the NMOS tube.
Drawings
FIG. 1 is a schematic block diagram of a remote wake-up power supply device based on differential communication according to an embodiment of the present invention;
FIG. 2 is a block diagram of a remote wake-up power unit based on differential communication according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a remote wakeup power supply device based on differential communication according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a block diagram of a remote wake-up power supply device based on differential communication according to an embodiment of the present invention.
As shown in fig. 1, the remote wakeup power supply device based on differential communication according to an embodiment of the present invention includes a controllable power supply 10, a differential comparator 20, an incremental integrator 30, and a driver 40. Wherein, the differential comparator 20 receives the starting command signal in differential form remotely through the differential communication bus and amplifies the starting command signal; the incremental integrator 30 is connected with the differential comparator 20, and the incremental integrator 30 is used for generating a corresponding driving control signal according to the amplified starting command signal; a driver 40 is connected to the delta integrator 30 and the controllable power supply 10, the driver 40 being arranged to wake up the controllable power supply 10 in dependence of the drive control signal.
Further, as shown in fig. 2, the remote wake-up power supply device based on differential communication according to the embodiment of the present invention may further include a self-locking control module 50. The self-locking control module 50 is respectively connected to the controllable power supply 10 and the driver 40, and the self-locking control module 50 is configured to output a corresponding locking signal to the driver 40 according to the wake-up or standby state of the controllable power supply 10, so as to lock the wake-up or standby state of the controllable power supply 10.
In one embodiment of the present invention, as shown in fig. 3, the differential comparator 20 may include an operational amplifier PIC4, the non-inverting input terminal of the operational amplifier PIC4 may be connected to a first differential line of the differential communication bus through a first resistor PR24, the inverting input terminal of the operational amplifier PIC4 may be connected to a second differential line of the differential communication bus through a second resistor PR23, and may be connected to the output terminal of the operational amplifier PIC4 through a third resistor PR25, while the power terminal of the operational amplifier PIC4 may be connected to a preset power source, such as a +12v dc power source. When the differential communication bus is a CAN bus, as shown in fig. 3, the non-inverting input end of the operational amplifier PIC4 may be connected to a CANH line through a first resistor PR24, and the inverting input end of the operational amplifier PIC4 may be connected to a CANL line through a second resistor PR 23; the operational amplifier can be selected from an operational amplifier with the model of LMC6041AIM, and the overall current is smaller than 20uA, the high input impedance is larger than 5TΩ, the low input current is smaller than 100fA, the wide voltage range is larger than 12V, and the large output current is larger than 10mA, so that the operational amplifier can be ensured to have lower power consumption.
In one embodiment of the present invention, as shown in fig. 3, the incremental integrator 30 may include a fourth resistor PR22, a first diode PD2, and a first polarity capacitor PC23, wherein one end of the fourth resistor PR22 is connected to the output terminal of the operational amplifier, the anode of the first diode PD2 is connected to the other end of the fourth resistor PR22, the anode of the first polarity capacitor PC23 is connected to the cathode of the first diode PD2, and the cathode of the first polarity capacitor PC23 is grounded. The first diode PD2 is a diode with a model number of M7, and the cathode of the first diode PD2 may be used as a driving control signal output terminal of the incremental integrator.
In one embodiment of the present invention, as shown in fig. 3, the driver 40 may include an NMOS transistor Q6, and the gate of the NMOS transistor Q6 may be connected to the driving control signal output terminal of the delta integrator 30, i.e., the cathode of the first diode PD2, while the source of the NMOS transistor Q6 is connected to one end of the capacitor PC22 and grounded. The driver may include an NMOS transistor of the type AP2306, where the driver has a low start voltage of less than 2.5V, a low on-resistance of less than 40mΩ, a high input impedance of greater than 100mΩ, and a low control current of less than 100nA, so that the driver can be guaranteed to have low power consumption.
In one embodiment of the present invention, as shown in fig. 3, the controllable power supply 10 may include a switching voltage regulating chip PIC3, a switching control pin, i.e., an ON/OFF pin, of the switching voltage regulating chip PIC3 may be connected to a drain of the NMOS transistor Q6, and the switching control pin, i.e., the ON/OFF pin, of the switching voltage regulating chip PIC3 may be further connected to one end of a fifth resistor PR21 and the other end of the capacitor PC22, respectively, wherein the controllable power supply may include a switching voltage regulating chip of model LM2596-5, and a standby current of the controllable power supply is less than 80uA.
Further, as shown in fig. 3, the Vin pin of the switching voltage regulating chip PIC3 is connected to a preset power source, for example, a +12v dc power source and the other end of the fifth resistor PR21, the Output pin of the switching voltage regulating chip PIC3 is connected to the cathode of the second diode PD1 and one end of the coil PL1, the Freedback pin of the switching voltage regulating chip PIC3 is connected to the other end of the coil PL1 and one end of the second diode capacitor PC21, and the GND pin of the switching voltage regulating chip PIC3 is connected to the anode of the second diode PD1 and the other end of the second diode capacitor PC21 and is grounded, wherein the other end of the coil PL1 is used as the Output end of the +5v dc power source.
In one embodiment of the present invention, the self-locking control module 50 may be a communication processor, and may output a corresponding locking signal to the driver 40 after the controllable power supply 10 is woken up, i.e. started successfully, for example, continuously output the power supply signal PowerOn to the gate of the NMOS transistor Q6 through the sixth resistor PR26 shown in fig. 3, so as to lock the wake-up state, i.e. the power supply state, of the controllable power supply 10, and may perform locking of the standby state when the controllable power supply 10 is in the standby state.
Based on the above structure, after the remote wake-up power supply device based on differential communication according to the embodiment of the present invention receives a start command signal, that is, a voltage difference signal generated on a differential communication bus, remotely through a differential comparator, the voltage difference signal can be detected by a peak envelope of an RDC (Resistance-Diode-capacitor) circuit formed by a fourth resistor, a first Diode and a first polarity capacitor, so as to generate a corresponding level signal and control a driver to start a controllable power supply, for example, generate a high level signal to control the NMOS to turn on, so as to control a switching voltage regulator chip to output +5v dc power supply; when the remote wake-up power supply device based ON differential communication in the embodiment of the invention does not receive the start command signal, the driver, i.e. the NMOS transistor, is in the OFF state, and then the controllable power supply, i.e. the ON/OFF pin of the switching voltage regulating chip, may be connected to a preset power supply, for example, a +12v dc power supply, through the fifth resistor PR21, so as to stop the output of the +5v dc power supply.
According to the remote wake-up power supply device based on differential communication, the differential comparator is used for receiving and amplifying the starting command signal in a differential mode, the increment integrator is used for generating a corresponding driving control signal according to the amplified starting command signal, and finally the driver is used for waking up the controllable power supply according to the driving control signal, so that the remote wake-up power supply device based on differential communication is suitable for remote wake-up of the power supply, and is simple in structure and low in power consumption.
In the present invention, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A differential communication-based remote wakeup power supply apparatus, comprising:
a controllable power supply;
the differential comparator remotely receives a starting command signal in a differential form through a differential communication bus and amplifies the starting command signal;
the incremental integrator is connected with the differential comparator and is used for generating a corresponding driving control signal according to the amplified starting command signal;
a driver connected to the incremental integrator and the controllable power supply, the driver configured to wake up the controllable power supply based on the drive control signal,
the differential comparator comprises an operational amplifier, wherein the non-inverting input end of the operational amplifier is connected to a first differential line of the differential communication bus through a first resistor, the inverting input end of the operational amplifier is connected to a second differential line of the differential communication bus through a second resistor and is connected with the output end of the operational amplifier through a third resistor, the power end of the operational amplifier is connected to a preset power supply,
the increment integrator comprises a fourth resistor, a first diode and a first polarity capacitor, wherein one end of the fourth resistor is connected with the output end of the operational amplifier, the anode of the first diode is connected with the other end of the fourth resistor, the anode of the first polarity capacitor is connected with the cathode of the first diode, the cathode of the first polarity capacitor is grounded, wherein the cathode of the first diode is used as the driving control signal output end of the increment integrator,
the driver comprises an NMOS tube, the grid electrode of the NMOS tube is connected with the driving control signal output end of the increment integrator, the source electrode of the NMOS tube is grounded,
the controllable power supply comprises a switching voltage regulating chip, and a switching control pin of the switching voltage regulating chip is connected with the drain electrode of the NMOS tube.
2. The differential communication-based remote wakeup power supply apparatus according to claim 1, further comprising:
the self-locking control module is respectively connected with the controllable power supply and the driver, and is used for outputting corresponding locking signals to the driver according to the awakening or standby state of the controllable power supply so as to lock the awakening or standby state of the controllable power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911079331.8A CN111077974B (en) | 2019-11-07 | 2019-11-07 | Remote wake-up power supply device based on differential communication |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911079331.8A CN111077974B (en) | 2019-11-07 | 2019-11-07 | Remote wake-up power supply device based on differential communication |
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| Publication Number | Publication Date |
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| CN111077974A CN111077974A (en) | 2020-04-28 |
| CN111077974B true CN111077974B (en) | 2024-02-20 |
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| CN101964714A (en) * | 2010-10-28 | 2011-02-02 | 南京大学 | Method and system for awakening remote equipment |
| CN105653296A (en) * | 2014-11-10 | 2016-06-08 | 鸿富锦精密工业(武汉)有限公司 | Electronic device awaken system |
| CN206926605U (en) * | 2017-06-28 | 2018-01-26 | 北京经纬恒润科技有限公司 | A kind of motor-drive circuit |
| CN209299251U (en) * | 2018-12-14 | 2019-08-23 | 广东电网有限责任公司 | A kind of RS-485 telecommunication circuit and system |
| CN110254378A (en) * | 2019-06-25 | 2019-09-20 | 汉纳森（厦门）数据股份有限公司 | Vehicular electric power source device and vehicle power supply control circuit |
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2019
- 2019-11-07 CN CN201911079331.8A patent/CN111077974B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| CN101964714A (en) * | 2010-10-28 | 2011-02-02 | 南京大学 | Method and system for awakening remote equipment |
| CN105653296A (en) * | 2014-11-10 | 2016-06-08 | 鸿富锦精密工业(武汉)有限公司 | Electronic device awaken system |
| CN206926605U (en) * | 2017-06-28 | 2018-01-26 | 北京经纬恒润科技有限公司 | A kind of motor-drive circuit |
| CN209299251U (en) * | 2018-12-14 | 2019-08-23 | 广东电网有限责任公司 | A kind of RS-485 telecommunication circuit and system |
| CN110254378A (en) * | 2019-06-25 | 2019-09-20 | 汉纳森（厦门）数据股份有限公司 | Vehicular electric power source device and vehicle power supply control circuit |
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| 无线触发唤醒的无线数据采集系统设计;赵吉清;易灵芝;王根平;;计算机测量与控制(第08期);全文 * |
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