CN220172906U - Compatible interface awakening and handshaking circuit and device - Google Patents
Compatible interface awakening and handshaking circuit and device Download PDFInfo
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- CN220172906U CN220172906U CN202321733646.1U CN202321733646U CN220172906U CN 220172906 U CN220172906 U CN 220172906U CN 202321733646 U CN202321733646 U CN 202321733646U CN 220172906 U CN220172906 U CN 220172906U
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Abstract
The utility model discloses a compatible interface wake-up and handshake circuit and a device, wherein the circuit mainly comprises: the device comprises an MCU control unit, a switch simulation wake-up circuit, a complete machine handshake unit and a charger handshake unit; the whole machine handshake unit is connected with the input end interface of the switch simulation wake-up circuit through a whole machine interface, and the output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit; the charger handshake unit is connected with the input end interface of the switch simulation wake-up circuit through a charger interface, and the output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit. The circuit design solves the problem that the battery pack is compatible with the adapting and awakening functions of the whole machine and the charger, avoids abnormal charge and discharge of the battery caused by incorrect use of the battery pack in various products in the market, forms matching and uniqueness for the application of the battery, the whole machine and the charger, and greatly improves the quality of battery products and the safety performance of using the battery products.
Description
Technical Field
The present utility model relates to the field of interface handshake circuits, and in particular, to a compatible interface wake-up and handshake circuit and device.
Background
The reliability of the connection between the battery pack interface of the battery pack and the interface of the external equipment is particularly high in many working occasions, the connection is reliable, the on-line state of the connected equipment is monitored constantly, otherwise, electric leakage and discharge can occur, equipment damage can occur, and safety accidents can be caused seriously. And when the battery pack enters a dormant state, the battery pack is required to wake up to be charged and discharged in a working state when being connected with the whole machine and the charger, so that the battery is compatible with the application scene of the whole machine and the charger in a matching manner, the uniqueness of the battery and the whole machine and the battery and the charger is formed, and the battery is prevented from being applied to the unmatched whole machine to cause abnormal discharging or applied to the unmatched charger to cause abnormal charging.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a compatible interface wake-up and handshake circuit and a device, wherein the circuit solves the problem that a battery pack is compatible with the adapting and wake-up functions of a complete machine and a charger at the same time, avoids abnormal charge and discharge of a battery caused by incorrect use of the battery pack in various products on the market, forms matching and uniqueness for the application of the battery, the complete machine and the charger, and improves the safety performance and convenience of interface connection.
To achieve the above object, the present utility model provides a compatible interface wake-up and handshake circuit, comprising:
the device comprises an MCU control unit, a switch simulation wake-up circuit, a complete machine handshake unit and a charger handshake unit; the whole machine handshake unit is connected with the input end interface of the switch simulation wake-up circuit through a whole machine interface, and the output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit; the charger handshake unit is connected with an input end interface of the switch simulation wake-up circuit through a charger interface, and an output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit; and an ON signal is arranged at an input end interface of the switch simulation wake-up circuit, and the MCU control unit is matched with the whole machine interface or the charger interface by identifying the ON signal.
In the present utility model, the switch simulates a wake-up circuit, comprising: diode D1, diode D2, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, transistor Q1, transistor Q2, zener diode ZD1, and capacitor C1.
Further, the input terminal interface of the switch simulation wake-up circuit is connected with the cathode of a diode D1, the anode of the diode D1 is connected with one end of a resistor R3, the other end of the resistor R3 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the emitter of a triode Q1, the collector of the triode Q1 is connected with the wake-up pin of the MCU control unit, the other end of the resistor R1 is further connected with the power anode 3.3V of the MCU control unit, the other end of the resistor R3 is further connected with one end of a resistor R2, the other end of the resistor R2 is connected with the base of the triode Q1, the collector of the triode Q1 is further connected with one end of a resistor R4, and the other end of the resistor R4 is grounded.
When the whole machine handshake unit is connected with an input end interface of the switch analog wake-up circuit through a whole machine interface, the ON signal is converted into a low-level signal after being connected with a pin PACK-of the whole machine handshake unit interface in a matching way.
In the utility model, the input end interface of the switch analog wake-up circuit is also connected with the cathode of a voltage stabilizing diode ZD1, the anode of the voltage stabilizing diode ZD1 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with one end of a resistor R6, the other end of the resistor R6 is grounded, the other end of the resistor R5 is also connected with the base electrode of a triode Q2, the emitter electrode of the triode Q2 is connected with the cathode of a diode D2, the anode of the diode D2 is connected with the other end of the resistor R3, the collector electrode of the triode Q2 is grounded, the input end interface of the switch analog wake-up circuit is also connected with one end of a capacitor C1, and the other end of the capacitor C1 is grounded.
When the charger handshake unit is connected with an input end interface of the switch analog wake-up circuit through a charger interface, the ON signal is converted into a high-level signal after being matched and connected with a pin PACK+ of the charger handshake unit interface.
In the utility model, when the input end interface of the switch analog wake-up circuit is a low level signal, the input end interface of the switch analog wake-up circuit, the diode D1, the resistor R3, the resistor R1 and the power supply anode 3.3V of the MCU control unit are sequentially connected in a conducting manner, a voltage drop larger than 0.7V exists between the emitter and the base of the triode Q1, the triode Q1 is also conducted, the voltage at the wake-up pin of the MCU control unit is converted from 0V to 3.3V, and the MCU control unit is waken according to the low level conversion of the wake-up pin of the MCU control unit to high level.
In the utility model, when the input end interface of the switch analog wake-up circuit is a high level signal, the input end interface of the switch analog wake-up circuit, the zener diode ZD1, the resistor R5, the resistor R6, the triode Q2, the diode D2, the resistor R3, the resistor R1 and the power supply positive electrode 3.3V of the MCU control unit are sequentially connected in a conducting manner, the voltage of the charger handshake unit is greater than the withstand voltage of the zener diode ZD1, the zener diode ZD1 works in a voltage stabilizing state, wherein the voltage drop of the resistor R6 is greater than 0.7V, the voltage drop between the base electrode and the emitter electrode of the triode Q2 is greater than 0.7V, the triode Q2 is conducted, the voltage at two ends of the diode D2 is converted from 3.3V to 0V, the triode Q1 is also conducted, the wake-up pin of the MCU control unit is converted from 0.3V to the low level, and the wake-up pin of the MCU control unit is converted from the low level to the high level.
In the utility model, the input end interface of the switch analog wake-up circuit is compatible with the whole machine handshake unit and the charger handshake unit.
In order to achieve the above object, the present utility model further provides a compatible interface wake-up and handshake apparatus, including:
the device comprises a battery pack module, a wake-up module, a complete machine module and a charger module.
The battery pack module at least comprises an MCU control unit and a battery pack interface.
The whole machine module at least comprises a whole machine interface; a wake-up module is also connected between the whole machine module and the battery pack module; the charger module at least comprises a charger interface; and the wake-up module is also connected between the charger module and the battery pack module.
In the utility model, the battery pack module identifies a complete machine interface connected with the complete machine module or a charger interface of the charger module through an ON signal at the battery pack interface, and the complete machine module or the charger module wakes up the MCU control unit through the wake-up module.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model provides a compatible interface wake-up and handshake circuit, which is characterized in that an ON signal is arranged at an input end interface of a switch analog wake-up circuit, and an MCU control unit is matched with a complete machine interface or a charger interface by identifying the ON signal, so that the problem that a single battery pack interface can be matched with the complete machine and the charger is solved, and faults such as abnormal discharge and the like caused in the unmatched process are avoided.
2. When the whole machine handshake unit is connected with an input end interface of the switch analog wake-up circuit through the whole machine interface, an ON signal is converted into a low-level signal after being connected with a pin PACK-of the whole machine handshake unit interface in a matching way, and then the MCU control unit is waken up through the switch analog wake-up circuit; when the charger handshake unit is connected with an input end interface of the switch simulation wake-up circuit through the charger interface, an ON signal is converted into a high-level signal after being in matched connection with a pin PACK+ of the interface of the charger handshake unit, then the MCU control unit is also woken up through the switch simulation wake-up circuit, and under the condition that extra equipment is not needed to be added, the battery PACK in a sleep state can be woken up through the switch simulation wake-up circuit to normally work after being connected with a compatible complete machine and the charger, so that the production quality is improved and the production cost is reduced.
Drawings
Fig. 1 is a schematic circuit diagram of a compatible interface wake-up and handshake circuit according to the present utility model.
Fig. 2 is a schematic circuit diagram of a compatible interface wake-up and handshake circuit according to the present utility model when the compatible interface wake-up and handshake circuit is connected to a complete machine interface.
Fig. 3 is a schematic circuit diagram of a compatible interface wake-up and handshake circuit according to the present utility model when the compatible interface wake-up and handshake circuit is connected to a charger interface.
Fig. 4 is a schematic diagram of a compatible interface wake-up and handshake device according to the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions will be clearly and completely described below in connection with the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
as shown in fig. 1, the present utility model provides a compatible interface wake-up and handshake circuit, in which a battery pack interface of a battery pack is not connected to a whole machine handshake unit or a charger handshake unit, and the battery pack enters a sleep state after waiting for a period of time.
The circuit mainly comprises: the device comprises an MCU control unit, a switch simulation wake-up circuit, a complete machine handshake unit and a charger handshake unit; the whole machine handshake unit is connected with the input end interface of the switch simulation wake-up circuit through a whole machine interface, and the output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit; the charger handshake unit is connected with an input end interface of the switch simulation wake-up circuit through a charger interface, and an output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit; and an ON signal is arranged at an input end interface of the switch simulation wake-up circuit, and the MCU control unit is matched with the whole machine interface or the charger interface by identifying the ON signal.
Preferably, the switch analog wake-up circuit may include: diode D1, diode D2, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, transistor Q1, transistor Q2, zener diode ZD1, and capacitor C1.
As shown in fig. 2, when the whole machine handshake unit is connected with the input end interface of the switch analog wake-up circuit through the whole machine interface, the ON signal is converted into a low level signal after being connected with a pin PACK-matching of the whole machine handshake unit interface.
The input end interface of the switch simulation wake-up circuit is connected with the negative electrode of a diode D1, the positive electrode of the diode D1 is connected with one end of a resistor R3, the other end of the resistor R3 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the emitting electrode of a triode Q1, the collecting electrode of the triode Q1 is connected with a wake-up pin of the MCU control unit, the other end of the resistor R1 is further connected with the positive electrode 3.3V of a power supply of the MCU control unit, the other end of the resistor R3 is further connected with one end of a resistor R2, the other end of the resistor R2 is connected with the base electrode of the triode Q1, the collecting electrode of the triode Q1 is further connected with one end of a resistor R4, and the other end of the resistor R4 is grounded.
At this time, the battery pack interface of the battery pack is connected to the whole machine handshake unit after being matched with the whole machine interface.
The principle that the circuit design wakes up the MCU control unit through accessing the whole machine handshake unit is as follows:
when the input end interface of the switch simulation wake-up circuit is a low level signal, the input end interface of the switch simulation wake-up circuit, the diode D1, the resistor R3, the resistor R1 and the power supply anode 3.3V of the MCU control unit are sequentially connected in a conducting mode, a voltage drop larger than 0.7V exists between the emitter and the base of the triode Q1, the triode Q1 is also conducted, the voltage at the wake-up pin of the MCU control unit is converted from 0V to 3.3V, and the MCU control unit is waken up according to the fact that the wake-up pin of the MCU control unit is converted from low level to high level.
In summary, when the whole machine handshake unit is connected with the input end interface of the switch analog wake-up circuit through the whole machine interface, the ON signal is converted into a low-level signal after being connected with the pin PACK-of the whole machine handshake unit interface in a matching way, and then the MCU control unit is waken up through the switch analog wake-up circuit, so that the whole machine interface compatible with the whole machine handshake unit is realized, the occurrence of safety faults is reduced, and the production quality is improved.
Embodiment two:
as shown in fig. 3, when the charger handshake unit is connected with the input end interface of the switch analog wake-up circuit through the charger interface, the ON signal is converted into a high level signal after being connected with a pin pack+ of the charger handshake unit interface in a matching manner.
The input end interface of the switch simulation wake-up circuit is further connected with the negative electrode of a voltage stabilizing diode ZD1, the positive electrode of the voltage stabilizing diode ZD1 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with one end of a resistor R6, the other end of the resistor R6 is grounded, the other end of the resistor R5 is further connected with the base electrode of a triode Q2, the emitting electrode of the triode Q2 is connected with the negative electrode of a diode D2, the positive electrode of the diode D2 is connected with the other end of the resistor R3, the collector electrode of the triode Q2 is grounded, the input end interface of the switch simulation wake-up circuit is further connected with one end of a capacitor C1, and the other end of the capacitor C1 is grounded.
At this time, the battery pack interface of the battery pack is connected to the charger handshake unit after being matched with the charger interface.
The circuit design wakes up the MCU control unit through the hand-shake unit of the access charger, the principle is:
when the input end interface of the switch analog wake-up circuit is a high-level signal, the input end interface of the switch analog wake-up circuit, the voltage stabilizing diode ZD1, the resistor R5, the resistor R6, the triode Q2, the diode D2, the resistor R3, the resistor R1 and the power supply anode 3.3V of the MCU control unit are sequentially connected in a conducting mode, the voltage of the charger handshake unit is greater than the withstand voltage of the voltage stabilizing diode ZD1, the voltage stabilizing diode ZD1 works in a voltage stabilizing state, wherein the voltage drop of the resistor R6 is greater than 0.7V when the resistor R5 and the resistor R6 form a voltage dividing network, the voltage drop of the triode Q2 is greater than 0.7V when the voltage drop between the base electrode and the emitter electrode of the triode Q2 is also present, the triode Q2 is conducted, the voltage at two ends of the diode D2 is converted from 3.3V to 0V, the triode Q1 is also conducted, the voltage at the wake-up pin of the MCU control unit is converted from 0V to 3.3V, and the wake-up pin of the MCU control unit is converted from the low level to the high level.
In summary, when the charger handshake unit is connected with the input end interface of the switch analog wake-up circuit through the charger interface, the ON signal is converted into a high-level signal after being matched and connected with the pin PACK+ of the interface of the charger handshake unit, and then the MCU control unit is also waken up through the switch analog wake-up circuit, so that the charger interface compatible with the charger handshake unit is realized ON the basis of the first embodiment, and the production quality and the use convenience are greatly improved.
Embodiment III:
as shown in fig. 4, to solve the above problem, the present utility model further provides a compatible interface wake-up and handshake device, including:
the device comprises a battery pack module, a wake-up module, a complete machine module and a charger module.
The battery pack module at least comprises an MCU control unit and a battery pack interface.
The whole machine module at least comprises a whole machine interface; a wake-up module is also connected between the whole machine module and the battery pack module; the charger module at least comprises a charger interface; and the wake-up module is also connected between the charger module and the battery pack module.
Preferably, the battery pack module identifies a complete machine interface of the complete machine module or a charger interface of the charger module through an ON signal at the battery pack interface, and the complete machine module or the charger module wakes up the MCU control unit through the wake-up module.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; while the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those skilled in the art that variations may be made in the techniques described in the foregoing embodiments, or equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A compatible interface wake-up and handshake circuit comprising:
the device comprises an MCU control unit, a switch simulation wake-up circuit, a complete machine handshake unit and a charger handshake unit;
the whole machine handshake unit is connected with the input end interface of the switch simulation wake-up circuit through a whole machine interface, and the output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit;
the charger handshake unit is connected with an input end interface of the switch simulation wake-up circuit through a charger interface, and an output end of the switch simulation wake-up circuit is connected with a wake-up pin of the MCU control unit;
and an ON signal is arranged at an input end interface of the switch simulation wake-up circuit, and the MCU control unit is matched with the whole machine interface or the charger interface by identifying the ON signal.
2. The compatible interface wake-up and handshake circuit of claim 1 wherein the switch simulates a wake-up circuit comprising: diode D1, diode D2, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, transistor Q1, transistor Q2, zener diode ZD1, and capacitor C1.
3. A compatible interface wake-up and handshake circuit as claimed in claim 2, characterized in that,
the input end interface of the switch simulation wake-up circuit is connected with the cathode of a diode D1, the anode of the diode D1 is connected with one end of a resistor R3, the other end of the resistor R3 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the emitter of a triode Q1, the collector of the triode Q1 is connected with a wake-up pin of the MCU control unit, the other end of the resistor R1 is further connected with the power supply anode 3.3V of the MCU control unit, the other end of the resistor R3 is further connected with one end of a resistor R2, the other end of the resistor R2 is connected with the base of the triode Q1, the collector of the triode Q1 is further connected with one end of a resistor R4, and the other end of the resistor R4 is grounded.
4. A compatible interface wake-up and handshake circuit as claimed in claim 3, characterized in that,
when the whole machine handshake unit is connected with the input end interface of the switch analog wake-up circuit through the whole machine interface, the ON signal is converted into a low-level signal after being connected with a pin PACK-matching of the whole machine handshake unit interface.
5. A compatible interface wake-up and handshake circuit as claimed in claim 4, wherein,
the input end interface of the switch simulation wake-up circuit is further connected with the negative electrode of a voltage stabilizing diode ZD1, the positive electrode of the voltage stabilizing diode ZD1 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with one end of a resistor R6, the other end of the resistor R6 is grounded, the other end of the resistor R5 is further connected with the base electrode of a triode Q2, the emitting electrode of the triode Q2 is connected with the negative electrode of a diode D2, the positive electrode of the diode D2 is connected with the other end of the resistor R3, the collector electrode of the triode Q2 is grounded, the input end interface of the switch simulation wake-up circuit is further connected with one end of a capacitor C1, and the other end of the capacitor C1 is grounded.
6. A compatible interface wake-up and handshake circuit as claimed in claim 5, wherein,
when the charger handshake unit is connected with the input end interface of the switch analog wake-up circuit through the charger interface, the ON signal is converted into a high-level signal after being matched and connected with a pin PACK+ of the charger handshake unit interface.
7. A compatible interface wake-up and handshake circuit as claimed in claim 6, wherein,
when the input end interface of the switch simulation wake-up circuit is a low level signal, the input end interface of the switch simulation wake-up circuit, the diode D1, the resistor R3, the resistor R1 and the power supply anode 3.3V of the MCU control unit are sequentially connected in a conducting mode, a voltage drop larger than 0.7V exists between the emitter and the base of the triode Q1, the triode Q1 is also conducted, the voltage at the wake-up pin of the MCU control unit is converted from 0V to 3.3V, and the MCU control unit is waken up according to the fact that the wake-up pin of the MCU control unit is converted from low level to high level.
8. A compatible interface wake-up and handshake circuit as claimed in claim 7, wherein,
when the input end interface of the switch analog wake-up circuit is a high-level signal, the input end interface of the switch analog wake-up circuit, the voltage stabilizing diode ZD1, the resistor R5, the resistor R6, the triode Q2, the diode D2, the resistor R3, the resistor R1 and the power supply anode 3.3V of the MCU control unit are sequentially connected in a conducting mode, the voltage of the charger handshake unit is greater than the withstand voltage of the voltage stabilizing diode ZD1, the voltage stabilizing diode ZD1 works in a voltage stabilizing state, wherein the voltage drop of the resistor R6 is greater than 0.7V when the resistor R5 and the resistor R6 form a voltage dividing network, the voltage drop of the triode Q2 is greater than 0.7V when the voltage drop between the base electrode and the emitter electrode of the triode Q2 is also present, the triode Q2 is conducted, the voltage at two ends of the diode D2 is converted from 3.3V to 0V, the triode Q1 is also conducted, the voltage at the wake-up pin of the MCU control unit is converted from 0V to 3.3V, and the wake-up pin of the MCU control unit is converted from the low level to the high level.
9. A compatible interface wake-up and handshake circuit as claimed in claim 8, wherein,
and an input end interface of the switch simulation wake-up circuit is compatible with the whole machine handshake unit and the charger handshake unit.
10. A compatible interface wake-up and handshake device comprising:
the device comprises a battery pack module, a wake-up module, a complete machine module and a charger module;
the battery pack module at least comprises an MCU control unit and a battery pack interface;
the whole machine module at least comprises a whole machine interface; a wake-up module is also connected between the whole machine module and the battery pack module;
the charger module at least comprises a charger interface; the wake-up module is also connected between the charger module and the battery pack module;
the battery pack module identifies a complete machine interface connected with the complete machine module or a charger interface of the charger module through an ON signal at the battery pack interface, and the complete machine module or the charger module wakes up the MCU control unit through the wake-up module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321733646.1U CN220172906U (en) | 2023-07-04 | 2023-07-04 | Compatible interface awakening and handshaking circuit and device |
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|---|---|---|---|
| CN202321733646.1U CN220172906U (en) | 2023-07-04 | 2023-07-04 | Compatible interface awakening and handshaking circuit and device |
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| CN220172906U true CN220172906U (en) | 2023-12-12 |
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| CN202321733646.1U Active CN220172906U (en) | 2023-07-04 | 2023-07-04 | Compatible interface awakening and handshaking circuit and device |
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