CN219351733U - Interphone circuit with functions of charging and soft shutdown and interphone - Google Patents
Interphone circuit with functions of charging and soft shutdown and interphone Download PDFInfo
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- CN219351733U CN219351733U CN202223164948.XU CN202223164948U CN219351733U CN 219351733 U CN219351733 U CN 219351733U CN 202223164948 U CN202223164948 U CN 202223164948U CN 219351733 U CN219351733 U CN 219351733U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model relates to the technical field of interphones, in particular to an interphone circuit with functions of charging while using and soft shutdown and an interphone. The circuit comprises a power supply manager, a main circuit power supply module, a battery, a charging interface, a charging module, a microcontroller, a first band-stop triode and a second band-stop triode; when the charging interface is powered on, the charging interface supplies power, the battery is disconnected to supply power, normal operation of the interphone and battery charging are guaranteed, charging is achieved while the interphone is charged, charging time of the battery is reduced, and service life of the battery is prolonged. The interphone has a soft shutdown function, and can provide charging information indication for a user in the state of the interphone.
Description
Technical Field
The utility model relates to the technical field of interphones, in particular to an interphone circuit with functions of charging while using and soft shutdown and an interphone.
Background
A radio interphone is one of the earliest wireless mobile communication devices used by humans, and has been used as early as the 30 s of the 20 th century. The current interphone generally adopts a rechargeable battery to supply power, and the charging circuit of the current interphone generally charges the battery through a charging module directly for a charging interface, and the power supply adopted by the working of the interphone is still provided for the battery. Because the charging current is smaller when the battery is charged and the discharging current is larger when the interphone works, the situation that the battery power is used less and less is caused if the interphone is continuously used in the charging process, and finally the interphone is damaged even.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides an interphone circuit with functions of charging while using and soft shutdown and an interphone.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an interphone circuit with functions of charging and soft shutdown, which is characterized in that: the device comprises a power supply manager, a main circuit power supply module, a battery, a charging interface, a charging module, a microcontroller, a first band-stop triode and a second band-stop triode;
the power supply manager is connected with the main circuit power supply module, the battery is connected with the power supply manager through a first power supply line, the charging interface is connected with the power supply manager through a second power supply line, a field effect tube is arranged on the first power supply line, the D pole of the field effect tube is connected to the anode of the battery, the S pole is connected to the input pin of the power supply manager, the G pole is connected to the second power supply line, a first diode is arranged on the second power supply line, the anode of the first diode is connected to the charging interface, the cathode of the first diode is connected to the input pin of the power supply manager, and the connection position of the G pole of the field effect tube and the second power supply line is located at one side of the anode of the first diode;
the charging interface is connected with the battery through a charging module;
the E pole of first band elimination triode is connected the input foot of second power supply line power manager, and the C pole is connected to power manager's control foot, and the B utmost point is connected to the earthing terminal through switch all the way, is connected to the C pole of second band elimination triode all the way, the E pole of second band elimination triode is connected to the earthing terminal, and the B utmost point is connected to second power supply line and hookup location and is in the anodal one side of first diode, microcontroller is connected with main circuit power module, and microcontroller's detection foot is connected to the earthing terminal through switch.
Further, the power amplifier power supply system further comprises a power amplifier power supply module, and the first power supply line and the second power supply line are connected to the power amplifier power supply module.
Further, the power supply circuit further comprises a first resistor, one end of the first resistor is grounded, the other end of the first resistor is connected to the second power supply circuit, and the connection position is located at the connection position and located at the positive electrode side of the first diode.
Further, the circuit further comprises a second resistor and a third resistor, one end of the second resistor is connected to the second power supply circuit, the connection position of the second resistor is located at one side of the positive electrode of the first diode, the other end of the second resistor is connected with the third resistor, the other end of the third resistor is grounded, and the B electrode of the second band-stop triode is connected between the second resistor and the third resistor.
Further, the circuit further comprises a second diode, wherein the anode of the second diode is connected to the B pole of the first band-stop triode, and the cathode of the second diode is connected to the power switch.
Further, the micro-controller also comprises a third diode, wherein the anode of the third diode is connected to the detection pin of the micro-controller, and the cathode of the third diode is connected to the power switch.
Further, the second band-stop triode is an NPN tube.
An interphone is characterized in that: the interphone circuit with the functions of charging while using and soft shutdown comprises any one of the interphone circuits.
As can be seen from the above description of the present utility model, compared with the prior art, the interphone circuit with the functions of charging while and soft shutdown provided by the present utility model has the following advantages: when the charging interface is powered on, the charging interface supplies power, the battery is disconnected to supply power, normal operation of the interphone and battery charging are guaranteed, charging is achieved while the interphone is charged, charging time of the battery is reduced, and service life of the battery is prolonged. The interphone has a soft shutdown function, and can provide charging information indication for a user in the state of the interphone.
Drawings
Fig. 1 is a circuit diagram of an intercom circuit with functions of charging while and soft-off according to the present utility model.
The correspondence identified in the figure is as follows: q1-field effect transistor, Q2-first band-stop triode, Q3-second band-stop triode, D1-first diode, D2-second diode, D3-third diode, R1-first resistor, R2-second resistor, R3-third resistor.
Detailed Description
The utility model is further described below by means of specific embodiments.
Referring to fig. 1, an interphone circuit with functions of charging while and soft shutdown comprises a power manager, a main circuit power supply module, a battery, a charging interface, a charging module, a microcontroller, a first band-stop triode, a second band-stop triode Q3 and a power amplifier power supply module;
the power supply manager is connected with the main circuit power supply module, the battery is connected with the power supply manager through a first power supply line, the charging interface is connected with the power supply manager through a second power supply line, a field effect tube Q1 is arranged on the first power supply line, the D pole of the field effect tube Q1 is connected to the positive pole of the battery, the S pole is connected to the input pin of the power supply manager, the G pole is connected to a second power supply line, a first diode D1 is arranged on the second power supply line, the positive pole of the first diode D1 is connected to the charging interface, the negative pole of the first diode D1 is connected to the input pin of the power supply manager, and the connection position of the G pole of the field effect tube Q1 and the second power supply line is positioned on one side of the positive pole of the first diode D1;
the charging interface is connected with the battery through a charging module;
the E pole of first band elimination triode is connected the input foot of second power supply line power manager, and the C pole is connected to power manager's control foot, and the B utmost point is connected to the earthing terminal through switch all the way, is connected to the C pole of second band elimination triode Q3 all the way, the E pole of second band elimination triode Q3 is connected to the earthing terminal, and the B utmost point is connected to second power supply line and hookup location and is in the anodal one side of first diode D1, microcontroller is connected with main circuit power module, and microcontroller's detection foot is connected to the earthing terminal through switch.
The first power supply line and the second power supply line are connected to the power amplifier power supply module.
The power supply circuit further comprises a first resistor R1, one end of the first resistor R1 is grounded, the other end of the first resistor R1 is connected to the second power supply circuit, and the connection position is located at the positive electrode side of the first diode D1. The circuit further comprises a second resistor R2 and a third resistor R3, one end of the second resistor R2 is connected to the second power supply circuit, the connection position is located on one side of the positive electrode of the first diode D1, the other end of the second resistor R2 is connected with the third resistor R3, the other end of the third resistor R3 is grounded, and the B electrode of the second band-stop triode Q3 is connected between the second resistor R2 and the third resistor R3. The second band-stop triode Q3 is an NPN tube.
The LED further comprises a second diode D2, wherein the anode of the second diode D2 is connected to the B pole of the first band-stop triode, and the cathode of the second diode D2 is connected to the power switch. The micro-controller further comprises a third diode D3, wherein the anode of the third diode D3 is connected to the detection pin of the micro-controller, and the cathode of the third diode D3 is connected to the power switch.
An interphone comprises the interphone circuit with functions of charging while using and soft shutdown.
The working principle of the interphone circuit with the functions of charging and soft shutdown is as follows:
when the charging interface is not connected with electricity, the G pole of the field effect tube Q1 is in a low level, the D pole and the S pole of the field effect tube Q1 are conducted, the first power supply circuit is conducted, and the battery supplies power to the power manager and the power amplifier power supply module. When the power switch is disconnected, the E pole of the first band-stop triode Q2 connected with the S pole of the field effect tube Q1 supplies power to the B pole of the first band-stop triode through a built-in resistor, so that the C pole and the E pole of the first band-stop triode are disconnected, namely, the control pin of the power manager is in a low level, and the output of the power manager is closed; when the power switch is turned off, the B pole of the first band-stop triode is pulled to be low level, so that the C pole and the E pole of the first band-stop triode are conducted, namely, the control pin of the power manager is high level, and the output of the power manager is started.
When the charging interface is powered on, the charging interface charges the battery through the charging module; the charging interface is connected with the G pole of the field effect tube Q1, so that the G pole of the field effect tube Q1 is in a high level, the D pole and the S pole of the field effect tube Q1 are disconnected, and even if the first power supply circuit is disconnected, the second power supply circuit only supplies power; the second power supply circuit supplies power for the power manager and the power amplifier power supply module at the same time, and the power of the power amplifier can be improved by adopting the second power supply circuit for supplying power because the charging voltage of the charging interface is larger than the battery voltage, so that the transmitting power is improved.
When the charging interface is powered on, the interphone has a soft power-off function, and can provide charging information indication for a user in the state of the interphone, and the specific working principle is as follows: the second power supply circuit supplies power to the B pole of the second band-stop triode Q3 through the voltage dividing circuit of the second resistor R2 and the third resistor R3, so that the E pole and the C pole of the second band-stop triode Q3 are conducted, the B pole of the first band-stop triode Q2 is pulled to be low level, namely the E pole and the C pole of the first band-stop triode Q2 are conducted, the control pin of the power manager is high level, and the output of the power manager is kept on. The detection pin of the microcontroller is used for identifying the state of the power switch and further controlling the starting-up or soft-off of the interphone, specifically, the detection pin of the microprocessor is set to be strongly pulled up, when the power switch is disconnected, the detection pin of the microcontroller is at a high level and enters a soft-off state, and when the power switch is closed, the detection pin of the microcontroller is at a low level and enters a starting-up state.
The foregoing is merely one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the concept shall belong to the behavior of infringement of the protection scope of the present utility model.
Claims (8)
1. An interphone circuit with functions of charging and soft shutdown, which is characterized in that: the device comprises a power supply manager, a main circuit power supply module, a battery, a charging interface, a charging module, a microcontroller, a first band-stop triode and a second band-stop triode;
the power supply manager is connected with the main circuit power supply module, the battery is connected with the power supply manager through a first power supply line, the charging interface is connected with the power supply manager through a second power supply line, a field effect tube is arranged on the first power supply line, the D pole of the field effect tube is connected to the anode of the battery, the S pole is connected to the input pin of the power supply manager, the G pole is connected to the second power supply line, a first diode is arranged on the second power supply line, the anode of the first diode is connected to the charging interface, the cathode of the first diode is connected to the input pin of the power supply manager, and the connection position of the G pole of the field effect tube and the second power supply line is located at one side of the anode of the first diode;
the charging interface is connected with the battery through a charging module;
the E pole of first band elimination triode is connected the input foot of second power supply line power manager, and the C pole is connected to power manager's control foot, and the B utmost point is connected to the earthing terminal through switch all the way, is connected to the C pole of second band elimination triode all the way, the E pole of second band elimination triode is connected to the earthing terminal, and the B utmost point is connected to second power supply line and hookup location and is in the anodal one side of first diode, microcontroller is connected with main circuit power module, and microcontroller's detection foot is connected to the earthing terminal through switch.
2. The interphone circuit with functions of charging while and soft shutdown according to claim 1, wherein: the power amplifier circuit further comprises a power amplifier power supply module, and the first power supply circuit and the second power supply circuit are connected to the power amplifier power supply module.
3. The interphone circuit with functions of charging while and soft shutdown according to claim 1, wherein: the first resistor is grounded at one end, the other end is connected to the second power supply line, and the connection position is positioned at the positive electrode side of the first diode.
4. The interphone circuit with functions of charging while and soft shutdown according to claim 1, wherein: the second resistor is connected to the second power supply line at one end, the connecting position is located on one side of the positive electrode of the first diode at the connecting position, the other end of the second resistor is connected with the third resistor, the other end of the third resistor is grounded, and the B electrode of the second triode with resistance is connected between the second resistor and the third resistor.
5. The interphone circuit with functions of charging while and soft shutdown according to claim 1, wherein: the circuit further comprises a second diode, wherein the positive electrode of the second diode is connected to the B electrode of the first band-stop triode, and the negative electrode of the second diode is connected to the power switch.
6. The interphone circuit with functions of charging while and soft shutdown according to claim 1, wherein: the micro-controller also comprises a third diode, wherein the anode of the third diode is connected to the detection pin of the micro-controller, and the cathode of the third diode is connected to the power switch.
7. The interphone circuit with functions of charging while and soft shutdown according to claim 1, wherein: the second band-stop triode is an NPN tube.
8. An interphone is characterized in that: an interphone circuit comprising the charging-while-soft-off function of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223164948.XU CN219351733U (en) | 2022-11-28 | 2022-11-28 | Interphone circuit with functions of charging and soft shutdown and interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223164948.XU CN219351733U (en) | 2022-11-28 | 2022-11-28 | Interphone circuit with functions of charging and soft shutdown and interphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219351733U true CN219351733U (en) | 2023-07-14 |
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ID=87095768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223164948.XU Active CN219351733U (en) | 2022-11-28 | 2022-11-28 | Interphone circuit with functions of charging and soft shutdown and interphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219351733U (en) |
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2022
- 2022-11-28 CN CN202223164948.XU patent/CN219351733U/en active Active
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