CN103594877B - A kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility - Google Patents
A kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility Download PDFInfo
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- CN103594877B CN103594877B CN201310578002.4A CN201310578002A CN103594877B CN 103594877 B CN103594877 B CN 103594877B CN 201310578002 A CN201310578002 A CN 201310578002A CN 103594877 B CN103594877 B CN 103594877B
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Abstract
The embodiment of the present invention provides a kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility, comprising: connecting line input connector; Connecting line output connecting head; Wire; To the first voltage signal acquisition circuit that the first voltage signal on wire gathers; To the second voltage signal acquisition circuit that the second voltage signal on the charging wire of wire gathers; Disconnect according to the first voltage signal determination connecting line input connector and power supply unit, or disconnect with charging device, export the first cue, and determine that described charging device is full of electricity according to the second voltage signal, export the MCU chip of the second cue; Perform the first cue circuit of the first prompting operation; Perform the second cue circuit of the second prompting operation.The embodiment of the present invention when power supply unit connecting line and power supply unit or charging device disconnect, can perform the first prompting operation, when charging device is full of electricity, performs the second prompting operation.
Description
Technical field
The present invention relates to electronic technology field, more particularly, relate to a kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility.
Background technology
Power supply unit connecting line refers to and connects power supply unit and charging device, and electric current is transferred to the connecting line of charging device by power supply unit, current power supply unit connecting line, except having charge function, also has data-transformation facility; The transfer of data of power supply unit connecting line and the realization of charge function are generally based on USB(UniversalSerialBus, USB) technology.
The present inventor is realizing finding in process of the present invention: when charging device is extracted from power supply unit connecting line, or when power supply unit connecting line and power supply unit disconnect, power supply unit connecting line without any suggesting effect, this makes power supply unit connecting line be easy to be missed; Meanwhile, the detection whether current charging device is full of electricity is all carried out at charging device end, and prior art is not a kind of connects at power supply unit the technology whether line end detection charging device is full of electricity.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility, extract from power supply unit connecting line at charging device to solve existing power supply unit connecting line, or when power supply unit connecting line and power supply unit disconnect, without any suggesting effect, and existing power supply unit connecting line does not have the problem of the function detecting the full electricity of charging device.
For achieving the above object, the embodiment of the present invention provides following technical scheme:
There is a power supply unit connecting line for anti-lost prompt facility and full electric prompt facility, comprising:
Connecting line input connector;
Connecting line output connecting head;
Connect the wire of described connecting line input connector and described connecting line output connecting head;
To the first voltage signal acquisition circuit that the first voltage signal on described wire gathers;
To the second voltage signal acquisition circuit that the second voltage signal on the charging wire of described wire gathers;
Be connected with described second voltage signal acquisition circuit with described first voltage signal acquisition circuit respectively, judge whether connecting line input connector disconnects with power supply unit according to described first voltage signal, or whether connecting line output connecting head disconnects with charging device, determining that connecting line input connector and power supply unit disconnect, or connecting line output connecting head and charging device are when disconnecting, export the first cue; And according to described second voltage signal, judge whether the charging device connected with described power supply unit connecting line is full of electricity, when determining that described charging device is full of electricity, exports the micro-control unit MCU chip of the second cue;
Connect with described MCU chip, receive described first cue, perform the first cue circuit of the first prompting operation;
Connect with described MCU chip, receive described second cue, perform the second cue circuit of the second prompting operation.
Wherein, described wire is general-purpose serial bus USB wire; Described first voltage signal acquisition circuit comprises: resistance voltage signal acquisition circuit;
Described resistance voltage signal acquisition circuit comprises: the first resistance, the second resistance and the first feedback link line;
Described first resistance is arranged on the ground wire of described USB wire;
Between the positive pole data wire that the first end of described first feedback link line is connected to described USB wire and ground wire, the second end connects with described MCU chip;
Between the first end that the first end of described second resistance is connected to described first feedback link line and the second end, the second end connects with ground;
First voltage signal of described first resistance, by described first feedback link line, after the second electric resistance partial pressure, transfers to described MCU chip;
Described MCU chip, when the magnitude of voltage of the first voltage signal described first resistance being detected is zero, is determined that connecting line output connecting head and charging device disconnect, is exported the first cue.
Wherein, described wire is general-purpose serial bus USB wire; Described first voltage signal acquisition circuit comprises: power supply voltage signal Acquisition Circuit;
Described power supply voltage signal Acquisition Circuit comprises: the 3rd resistance, the 4th resistance, the 5th resistance, the first diode, the first battery, the second feedback link line;
The first end of described 3rd resistance connects with the power line of described USB wire, and the second end connects with the positive pole of described first diode;
The first end of the 4th resistance connects with the positive pole of described first diode, and the second end connects with the first end of described 5th resistance;
Second end of described 5th resistance connects with the positive pole of described first battery;
The negative pole of described first diode connects with the negative pole of described first battery and external power supply respectively;
The plus earth of described first battery;
The first end of described second feedback link line is connected between described 4th resistance and the 5th resistance, and the second end connects with described MCU chip;
The first voltage signal on the power line of described USB wire, through described 3rd resistance, after the 4th resistance and the 5th electric resistance partial pressure, transfers to described MCU chip by described second feedback link line;
Described MCU chip, when the magnitude of voltage the first voltage signal that described second feedback link line feeds back being detected is zero, is determined that connecting line input connector and power supply unit disconnect, is exported the first cue.
Wherein, described wire is general-purpose serial bus USB wire; Described second voltage signal acquisition circuit comprises: the 6th resistance, the 7th resistance and the first electric capacity;
Described 6th resistance is arranged on the ground wire of described USB wire;
The first end of described 7th resistance connects with described 6th resistance, and the second end connects with described MCU chip;
The first end of described first electric capacity connects with the second end of described 7th resistance, the second end ground connection of described first electric capacity;
Described 6th ohmically second voltage signal, by the 7th resistance, transfers to described MCU chip after the first capacitor filtering;
Described MCU chip, when the magnitude of voltage described second voltage signal being detected is zero, is determined that described charging device is full of electricity, is exported the second cue.
Wherein, described first cue circuit and the second cue circuit comprise respectively: audible alarm circuit, and/or, optical alarm circuit.
Wherein, described audible alarm circuit comprises: inductance, loudspeaker, the 8th resistance and triode;
Wherein, described inductance and described loudspeaker are connected in parallel, and the first end of described loudspeaker connects with the collector electrode of described triode, and the second end connects with external power supply; The grounded emitter of described triode, base stage connects with the first end of described 8th resistance; Second end of described 8th resistance connects with described MCU chip.
Wherein, described optical alarm circuit comprises: the 9th resistance, the second diode, the tenth resistance, the 3rd diode;
Wherein, the first end of described 9th resistance connects with external power supply, and the second end connects with the positive pole of described second diode, and the negative pole of described second diode connects with described MCU chip;
The first end of described tenth resistance connects with external power supply, and the second end connects with the positive pole of described 3rd diode, and the negative pole of described 3rd diode connects with described MCU chip.
Wherein, described power supply unit connecting line also comprises: the automatic electrify restoration circuit of the MCU connected with described MCU chip.
Wherein, described power supply unit connecting line is the connecting line of charger, or the connecting line of adapter.
Wherein, described MCU chip is STM8S103T6 chip.
Based on technique scheme, what the embodiment of the present invention provided has anti-lost prompt facility and expires the power supply unit connecting line of electric prompt facility, by the first voltage signal acquisition circuit, the first voltage signal on wire is gathered, by the second voltage signal acquisition circuit, the second voltage signal on the charging wire of wire is gathered, disconnected according to the first voltage signal determination connecting line input connector and power supply unit by MCU chip, or connecting line output connecting head and charging device disconnect, and export the first cue to the first cue circuit, so that the first cue circuit performs the first prompting operation, electricity is full of according to the second voltage signal determination charging device by MCU chip, and export the second cue to the second cue circuit, so that the second cue circuit performs the second prompting operation.What the embodiment of the present invention provided has anti-lost prompt facility and expires the power supply unit connecting line of electric prompt facility, can disconnect at power supply unit connecting line and power supply unit, or power supply unit connecting line and charging device are when disconnecting, perform the first prompting operation, when charging device is full of electricity, perform the second prompting operation, solve existing power supply unit connecting line to extract from power supply unit connecting line at charging device, or when power supply unit connecting line and power supply unit disconnect, without any suggesting effect, and existing power supply unit connecting line does not have the problem of the function detecting the full electricity of charging device.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation with the power supply unit connecting line of anti-lost prompt facility and full electric prompt facility that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the first voltage signal acquisition circuit that Fig. 2 provides for the embodiment of the present invention;
Another structural representation of the first voltage signal acquisition circuit that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the second voltage signal acquisition circuit that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the audible alarm circuit that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the optical alarm circuit that Fig. 6 provides for the embodiment of the present invention;
Another structural representation with the power supply unit connecting line of anti-lost prompt facility and full electric prompt facility that Fig. 7 provides for the embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The structural representation with the power supply unit connecting line of anti-lost prompt facility and full electric prompt facility that Fig. 1 provides for the embodiment of the present invention, with reference to Fig. 1, this power supply unit connecting line can comprise:
Connecting line input connector 1, connecting line input connector 1 can be used for connecting with power supply unit, to realize the input of supply current; Optionally, connecting line input connector 1 can be attaching plug, for connecting with socket, realizes the input of supply current; Connecting line input connector 1 also can be the electric current input adapter of adapter;
Connecting line output connecting head 2, connecting line output connecting head 2 can be used for connecting with charging device, to be conveyed in charging device by supply current, realizes the charging to charging device;
Wire 3, connecting line is inputted connector 1 with wire 3 and connecting line output connecting head 2 couples together, and realizes supply current is inputted connector 1 to connecting line output connecting head 2 transmission by connecting line;
First voltage signal acquisition circuit 4, first voltage signal acquisition circuit 4 can gather the first voltage signal on wire 3;
Second voltage signal acquisition circuit 5, second voltage signal acquisition circuit 5 can gather the second voltage signal on the charging wire of wire 3;
MCU(MicroControlUnit, micro-control unit) chip 6, MCU chip 6 connects with the first voltage signal acquisition circuit 4 and the second voltage signal acquisition circuit 5 respectively, the first voltage signal that MCU chip 6 can gather according to the first voltage signal acquisition circuit 4 judges whether connecting line input connector disconnects with power supply unit, or whether connecting line output connecting head disconnects with charging device, determining that connecting line input connector and power supply unit disconnect, or connecting line output connecting head and charging device are when disconnecting, export the first cue; And the second voltage signal that MCU chip 6 can gather according to the second voltage signal acquisition circuit 5, judges whether the charging device connected with power supply unit connecting line is full of electricity, when determining that charging device is full of electricity, exports the second cue;
First cue circuit 7, first cue circuit 7 connects with MCU chip 6, can receive the first cue that MCU chip 6 exports, and performs the first prompting operation;
Second cue circuit 8, second cue circuit 8 connects with MCU chip 6, can receive the second cue that MCU chip 6 exports, and performs the second prompting operation.
What the embodiment of the present invention provided has anti-lost prompt facility and expires the power supply unit connecting line of electric prompt facility, by the first voltage signal acquisition circuit, the first voltage signal on wire is gathered, by the second voltage signal acquisition circuit, the second voltage signal on the charging wire of wire is gathered, disconnected according to the first voltage signal determination connecting line input connector and power supply unit by MCU chip, or connecting line output connecting head and charging device disconnect, and export the first cue to the first cue circuit, so that the first cue circuit performs the first prompting operation, electricity is full of according to the second voltage signal determination charging device by MCU chip, and export the second cue to the second cue circuit, so that the second cue circuit performs the second prompting operation.What the embodiment of the present invention provided has anti-lost prompt facility and expires the power supply unit connecting line of electric prompt facility, can disconnect at power supply unit connecting line and power supply unit, or power supply unit connecting line and charging device are when disconnecting, perform the first prompting operation, when charging device is full of electricity, perform the second prompting operation, solve existing power supply unit connecting line to extract from power supply unit connecting line at charging device, or when power supply unit connecting line and power supply unit disconnect, without any suggesting effect, and existing power supply unit connecting line does not have the problem of the function detecting the full electricity of charging device.
Optionally, by the voltage signal that the first voltage signal acquisition circuit gathers, MCU chip judges whether connecting line output connecting head disconnects with charging device; Corresponding, Fig. 2 shows the structure of the first voltage signal acquisition circuit that the embodiment of the present invention provides, and wire 3 shown in Fig. 2 is USB wire, and with reference to Fig. 2, the first voltage signal acquisition circuit can comprise: resistance voltage signal acquisition circuit 41; Resistance voltage signal acquisition circuit 41 can comprise: the first resistance R1, the second resistance R2 and the first feedback link line;
Wherein, the first resistance R1 is arranged on the ground wire of USB wire 3;
The first end of the first feedback link line is connected between the positive pole data wire of USB wire 3 and ground wire, and the second end connects with MCU chip 6;
Between the first end that the first end of the second resistance R2 is connected to the first feedback link line and the second end, the second end ground connection;
First voltage signal of the first resistance R1, by the first feedback link line, after the second resistance R2 dividing potential drop, transfers to MCU chip 6;
MCU chip 6 can when the magnitude of voltage of the first voltage signal the first resistance R1 being detected be zero, determine that connecting line output connecting head and charging device disconnect (namely power supply unit connecting line and charging device disconnect), export the first cue to the first cue circuit 7.
Optionally, MCU chip 6 can be STM8S103T6 chip, and the PC4 input port of STM8S103T6 chip can receive the first voltage signal that the signal acquisition circuit of resistance voltage shown in Fig. 2 41 gathers.
Shown in composition graphs 2, when power supply unit connecting line connects with charging device, the voltage signal being arranged at the first resistance R1 between ground wire feeds back to MCU chip 6 by the connecting line be connected with positive pole data wire, the magnitude of voltage that MCU chip 6 is detected is non-vanishing, when the magnitude of voltage that therefore can detect in MCU chip 6 is non-vanishing, determine that power supply unit connecting line connects with charging device; When power supply unit connecting line and charging device disconnect, the voltage signal being arranged at the first resistance R1 between ground wire disappears, and the magnitude of voltage that MCU chip 6 detects is zero, now can determine that power supply unit connecting line and charging device disconnect.
Optionally, by the voltage signal that the first voltage signal acquisition circuit gathers, MCU chip judges whether connecting line input connector disconnects with power supply unit; Corresponding, Fig. 3 shows another structure of the first voltage signal acquisition circuit that the embodiment of the present invention provides, and wire 3 shown in Fig. 3 is USB wire, and with reference to Fig. 3, the first voltage signal acquisition circuit can comprise: power supply voltage signal Acquisition Circuit 42; Power supply voltage signal Acquisition Circuit 42 can comprise: the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the first diode D1, the first battery BT1, the second feedback link line;
Wherein, the first end of the 3rd resistance R3 connects with the power line of USB wire 3, and the second end connects with the positive pole of the first diode D1;
The first end of the 4th resistance R4 connects with the positive pole of the first diode D1, and the second end connects with the first end of the 5th resistance R5;
Second end of the 5th resistance R5 connects with the positive pole of the first battery BT1;
The negative pole of the first diode D1 connects with the negative pole of the first battery BT1 and external power supply respectively;
The plus earth of the first battery BT1;
The first end of the second feedback link line is connected between the 4th resistance R4 and the 5th resistance R5, and the second end connects with MCU chip 6;
Voltage on the power line of USB wire 3, through the 3rd resistance R3, after the 4th resistance R4 and the 5th resistance R5 dividing potential drop, transfers to MCU chip 6 by the second feedback link line; MCU chip 6 is when the magnitude of voltage the first voltage signal that the second feedback link line feeds back being detected is zero, can determine that connecting line input connector and power supply unit disconnect (namely power supply unit connecting line and power supply unit disconnect), export cue to cue circuit 6.
Shown in composition graphs 3, when power supply unit connects with power supply unit connecting line, + 5V the power line of the USB wire of power supply unit connecting line there is voltage, MCU chip 6 can detect that the magnitude of voltage of the voltage signal gathered by power supply voltage signal Acquisition Circuit 42 is non-vanishing, now can determine that power supply unit connecting line connects with power supply unit; When power supply unit and power supply unit connecting line disconnect, + 5V the power line of the USB wire of power supply unit connecting line do not have voltage, MCU chip 6 can detect that the magnitude of voltage of the voltage signal gathered by power supply voltage signal Acquisition Circuit 42 is zero, now can determine that power supply unit connecting line and power supply unit disconnect, MCU chip 6 will export the second cue to the second cue circuit 8.
Optionally, by the voltage signal that the second voltage signal acquisition circuit gathers, MCU chip judges whether charging device is full of electricity; Corresponding, Fig. 4 shows the structure of the second voltage signal acquisition circuit that the embodiment of the present invention provides, and wire 3 shown in Fig. 4 is USB wire, and with reference to Fig. 4, the second voltage signal acquisition circuit can comprise: the 6th resistance R6, the 7th resistance R7 and the first electric capacity C1;
Wherein, the 6th resistance R6 is arranged on the ground wire of USB wire 3;
The first end of the 7th resistance R7 connects with the 6th resistance R6, and second end of the 7th resistance R7 connects with MCU chip 6;
The first end of the first electric capacity C1 connects with second end of the 7th resistance R7, and second end of the first electric capacity C1 connects with ground;
The second voltage signal on 6th resistance R6, by the 7th resistance R7, transfers to MCU chip 6 after the first electric capacity C1 filtering;
Shown in composition graphs 4, when charging device is when charging, flow through owing to having electric current the 6th resistance R6 be arranged on ground wire, therefore the magnitude of voltage that detects of MCU chip 6 is non-vanishing, therefore, when the magnitude of voltage that MCU chip 6 detects is non-vanishing, can determine that charging device is current and be in positive charged state; When charging device is full of electricity; due to mechanism such as power-off protections, flow through the 6th resistance R6 be arranged on ground wire by not having electric current, the magnitude of voltage that therefore MCU chip 6 detects is zero; therefore, when the magnitude of voltage that MCU chip 6 detects is zero, can determine that current being in of charging device is full of electricity condition.
Optionally, MCU chip 6 can be STM8S103T6 chip, and the ADC input port of the PC4 of STM8S103T6 chip can receive the second voltage signal that shown in Fig. 4, the second voltage signal acquisition circuit gathers.
Optionally, the prompting mode of the embodiment of the present invention can be auditory tone cues, also can be light prompt.Corresponding, the first cue circuit 7 of the embodiment of the present invention can be audible alarm circuit, and/or, optical alarm circuit; Second cue circuit 8 also can be audible alarm circuit, and/or, optical alarm circuit.
Optionally, Fig. 5 shows a kind of alternate configurations of audible alarm circuit, and with reference to Fig. 5, audible alarm circuit can comprise: inductance L, loudspeaker B, the 8th resistance R8 and triode Q;
Wherein, inductance L and loudspeaker B are connected in parallel, and the first end of loudspeaker B connects with the collector electrode of triode Q, and second end of loudspeaker B and external power supply (when wire is USB line, external power supply can be the external power supply of 5V) connect; The grounded emitter of triode Q, base stage connects with the first end of the 8th resistance R8, and second end of the 8th resistance R8 connects with MCU chip.
Optionally, Fig. 6 shows a kind of alternate configurations of optical alarm circuit, and with reference to Fig. 6, optical alarm circuit can comprise: the 9th resistance R9, the second diode D2, the tenth resistance R10, the 3rd diode D3;
Wherein, the first end of the 9th resistance R9 connects with external power supply, and the second end connects with the positive pole of the second diode D2, and the negative pole of the second diode D2 connects with MCU chip 6;
The first end of the tenth resistance R10 connects with external power supply, and the second end connects with the positive pole of the 3rd diode D3, and the negative pole of the 3rd diode D3 connects with MCU chip 6.
Another structural representation with the power supply unit connecting line of anti-lost prompt facility and full electric prompt facility that Fig. 7 provides for the embodiment of the present invention, shown in composition graphs 1 and Fig. 7, the connecting line of power supply unit shown in Fig. 7, on the basis of the connecting line of power supply unit shown in Fig. 1, also comprises: the automatic electrify restoration circuit 9 of the MCU connected with MCU chip 6; MCU chip 6 can perform automatic power on reset operation by the automatic electrify restoration circuit of MCU 9.
Optionally, power supply unit connecting line can be the connecting line of charger, or the connecting line of adapter.
What the embodiment of the present invention provided has anti-lost prompt facility and expires the power supply unit connecting line of electric prompt facility, can disconnect at power supply unit connecting line and power supply unit, or power supply unit connecting line and charging device are when disconnecting, perform the first prompting operation, when charging device is full of electricity, perform the second prompting operation.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. there is a power supply unit connecting line for anti-lost prompt facility and full electric prompt facility, it is characterized in that, comprising:
The connecting line connected with power supply unit inputs connector;
The connecting line output connecting head connected with charging device;
Connect the wire of described connecting line input connector and described connecting line output connecting head;
To the first voltage signal acquisition circuit that the first voltage signal on described wire gathers;
To the second voltage signal acquisition circuit that the second voltage signal on the charging wire of described wire gathers;
Be connected with described second voltage signal acquisition circuit with described first voltage signal acquisition circuit respectively, judge whether connecting line input connector disconnects with power supply unit according to described first voltage signal, or whether connecting line output connecting head disconnects with charging device, determining that connecting line input connector and power supply unit disconnect, or connecting line output connecting head and charging device are when disconnecting, export the first cue; And according to described second voltage signal, judge whether the charging device connected with described power supply unit connecting line is full of electricity, when determining that described charging device is full of electricity, exports the micro-control unit MCU chip of the second cue;
Connect with described MCU chip, receive described first cue, perform the first cue circuit of the first prompting operation;
Connect with described MCU chip, receive described second cue, perform the second cue circuit of the second prompting operation;
Wherein, described wire is general-purpose serial bus USB wire; Described second voltage signal acquisition circuit comprises: the 6th resistance, the 7th resistance and the first electric capacity;
Described 6th resistance is arranged on the ground wire of described USB wire;
The first end of described 7th resistance connects with described 6th resistance, and the second end connects with described MCU chip;
The first end of described first electric capacity connects with the second end of described 7th resistance, the second end ground connection of described first electric capacity;
Described 6th ohmically second voltage signal, by the 7th resistance, transfers to described MCU chip after the first capacitor filtering;
Described MCU chip, when the magnitude of voltage described second voltage signal being detected is zero, is determined that described charging device is full of electricity, is exported the second cue.
2. power supply unit connecting line according to claim 1, is characterized in that, described wire is general-purpose serial bus USB wire; Described first voltage signal acquisition circuit comprises: resistance voltage signal acquisition circuit;
Described resistance voltage signal acquisition circuit comprises: the first resistance, the second resistance and the first feedback link line;
Described first resistance is arranged on the ground wire of described USB wire;
Between the positive pole data wire that the first end of described first feedback link line is connected to described USB wire and ground wire, the second end connects with described MCU chip;
Between the first end that the first end of described second resistance is connected to described first feedback link line and the second end, the second end connects with ground;
First voltage signal of described first resistance, by described first feedback link line, after the second electric resistance partial pressure, transfers to described MCU chip;
Described MCU chip, when the magnitude of voltage of the first voltage signal described first resistance being detected is zero, is determined that connecting line output connecting head and charging device disconnect, is exported the first cue.
3. power supply unit connecting line according to claim 1, is characterized in that, described wire is general-purpose serial bus USB wire; Described first voltage signal acquisition circuit comprises: power supply voltage signal Acquisition Circuit;
Described power supply voltage signal Acquisition Circuit comprises: the 3rd resistance, the 4th resistance, the 5th resistance, the first diode, the first battery, the second feedback link line;
The first end of described 3rd resistance connects with the power line of described USB wire, and the second end connects with the positive pole of described first diode;
The first end of the 4th resistance connects with the positive pole of described first diode, and the second end connects with the first end of described 5th resistance;
Second end of described 5th resistance connects with the positive pole of described first battery;
The negative pole of described first diode connects with the negative pole of described first battery and external power supply respectively;
The plus earth of described first battery;
The first end of described second feedback link line is connected between described 4th resistance and the 5th resistance, and the second end connects with described MCU chip;
The first voltage signal on the power line of described USB wire, through described 3rd resistance, after the 4th resistance and the 5th electric resistance partial pressure, transfers to described MCU chip by described second feedback link line;
Described MCU chip, when the magnitude of voltage the first voltage signal that described second feedback link line feeds back being detected is zero, is determined that connecting line input connector and power supply unit disconnect, is exported the first cue.
4. the power supply unit connecting line according to any one of claim 1-3, is characterized in that, described first cue circuit and the second cue circuit comprise respectively: audible alarm circuit, and/or, optical alarm circuit.
5. power supply unit connecting line according to claim 4, is characterized in that, described audible alarm circuit comprises: inductance, loudspeaker, the 8th resistance and triode;
Wherein, described inductance and described loudspeaker are connected in parallel, and the first end of described loudspeaker connects with the collector electrode of described triode, and the second end connects with external power supply; The grounded emitter of described triode, base stage connects with the first end of described 8th resistance; Second end of described 8th resistance connects with described MCU chip.
6. power supply unit connecting line according to claim 4, is characterized in that, described optical alarm circuit comprises: the 9th resistance, the second diode, the tenth resistance, the 3rd diode;
Wherein, the first end of described 9th resistance connects with external power supply, and the second end connects with the positive pole of described second diode, and the negative pole of described second diode connects with described MCU chip;
The first end of described tenth resistance connects with external power supply, and the second end connects with the positive pole of described 3rd diode, and the negative pole of described 3rd diode connects with described MCU chip.
7. power supply unit connecting line according to claim 1, is characterized in that, also comprise: the automatic electrify restoration circuit of the MCU connected with described MCU chip.
8. power supply unit connecting line according to claim 1, is characterized in that, described power supply unit connecting line is the connecting line of charger, or the connecting line of adapter.
9. power supply unit connecting line according to claim 1, is characterized in that, described MCU chip is STM8S103T6 chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578002.4A CN103594877B (en) | 2013-11-18 | 2013-11-18 | A kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578002.4A CN103594877B (en) | 2013-11-18 | 2013-11-18 | A kind of power supply unit connecting line with anti-lost prompt facility and full electric prompt facility |
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| CN103594877A CN103594877A (en) | 2014-02-19 |
| CN103594877B true CN103594877B (en) | 2016-04-06 |
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|---|---|---|---|---|
| WO2015180015A1 (en) * | 2014-05-26 | 2015-12-03 | 华为技术有限公司 | Power adapter, cable, and charger |
| CN105630655B (en) * | 2015-12-17 | 2018-07-20 | 小米科技有限责任公司 | A kind of method and apparatus of prompt charging connection |
| CN106160102A (en) * | 2016-07-29 | 2016-11-23 | 芜湖迈特电子科技有限公司 | A kind of small size charger of improvement |
| CN106208203A (en) * | 2016-07-29 | 2016-12-07 | 芜湖迈特电子科技有限公司 | A kind of onboard charger with prompting function |
| CN106208202A (en) * | 2016-07-29 | 2016-12-07 | 芜湖迈特电子科技有限公司 | A kind of onboard charger with safety hammer |
| FR3056035A1 (en) * | 2016-09-14 | 2018-03-16 | Stmicroelectronics (Grenoble 2) Sas | METHOD AND SYSTEM FOR MANAGING THE POWER SUPPLY VOLTAGE OF A TYPE C USB SOURCE DEVICE |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201638358U (en) * | 2010-01-29 | 2010-11-17 | 卢宇聪 | Intelligent radio-frequency wireless anti-lost device |
| CN201741232U (en) * | 2010-08-26 | 2011-02-09 | 沈阳天和电子工程有限公司 | Charging theftproof alarm device of electronic goods |
| CN202221605U (en) * | 2011-08-18 | 2012-05-16 | 深圳市东峰盛五金制品有限公司 | Burglar alarm for display of digital product |
| CN202795619U (en) * | 2012-08-14 | 2013-03-13 | 曾维杰 | Display burglar alarm with no false alarm or failure in report |
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Effective date of registration: 20160722 Address after: 315192 Zhejiang city of Ningbo province Yinzhou District Zhonggongmiao garden building 42, room 505, Metro 12 Patentee after: Gao Liheng Address before: 468, Julong Industrial Park, three Ningbo Road, Hangzhou Bay New District, Zhejiang 315336, China Patentee before: NINGBO HENTEK DRAGON ELECTRONICS CO., LTD. |