CN210053234U - Multiport charging sound box circuit - Google Patents
Multiport charging sound box circuit Download PDFInfo
- Publication number
- CN210053234U CN210053234U CN201921163653.6U CN201921163653U CN210053234U CN 210053234 U CN210053234 U CN 210053234U CN 201921163653 U CN201921163653 U CN 201921163653U CN 210053234 U CN210053234 U CN 210053234U
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- diode
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- port
- overcurrent protection
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Abstract
The utility model belongs to the technical field of the audio amplifier circuit technique and specifically relates to a multiport charging audio amplifier circuit, including Type-c port, Micro USB port, Mini USB port, overcurrent protection chip and the linear charger of voltage, the first pin of Type-c port passes through the second diode, the first pin of Micro USB port passes through the first diode, the first pin of Mini USB port passes through the fourth diode and all is connected with the VIN terminal foot of overcurrent protection chip, the OUT terminal foot of overcurrent protection chip is connected with the CHRG terminal foot of the linear charger of voltage through the third diode and the first resistance that establish ties in proper order; has the advantages that: different charging wires can be connected through the connected Type-c port, the Micro USB port and the Mini USB port, so that the sound box is charged, and the use of a user is facilitated; by arranging the first diode, the second diode and the fourth diode, reverse withstand voltage is small, and the adapter is prevented from being burnt out by reverse voltage; the voltage limiting and current limiting are carried out on external voltage and current by arranging the voltage linear charger, so that the original devices of the mainboard are prevented from being burnt out.
Description
Technical Field
The utility model belongs to the technical field of the audio amplifier circuit technique and specifically relates to a multiport charging audio amplifier circuit.
Background
The existing charging sound box only has a single port and can only be connected with a certain specific charging wire, so that inconvenience is brought to the use of a user, and the existing charging sound box can only use the specific charging wire and cannot be replaced.
Disclosure of Invention
To the not enough of existence among the above-mentioned prior art, the utility model aims to provide a multiport charging sound box circuit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a multiport charging audio amplifier circuit which characterized in that: including Type-c port, Micro USB port, miniUSB port, overcurrent protection chip and the linear charger of voltage, the first pin of Type-c port pass through the second diode with the VIN end foot of overcurrent protection chip is connected, the first pin of Micro USB port pass through first diode with the VIN end foot of overcurrent protection chip is connected, the first pin of Mini USB port pass through the fourth diode with the VIN end foot of overcurrent protection chip is connected, the OUT end foot of overcurrent protection chip through the third diode and the first resistance that establish ties in proper order with the CHRG end foot of the linear charger of voltage is connected.
Preferably, the fourth, fifth, sixth, seventh, eighth and ninth pins of the Type-c port and the Micro USB port are all grounded, and the fifth pin of the Mini USB port is grounded.
Preferably, the OUT terminal pin of the overcurrent protection chip is grounded through a third resistor and a second resistor which are sequentially connected in series, a DC DECT terminal pin is connected between the second resistor and the third resistor, the OUT terminal pin of the overcurrent protection chip is grounded through a first capacitor, and the GND terminal pin of the overcurrent protection chip is grounded.
Preferably, a PROG terminal pin of the voltage linear charger is grounded through a fourth resistor, a BAT terminal pin of the voltage linear charger is connected with a battery terminal of the sound box, a VCC terminal of the voltage linear charger is connected with an OUT terminal pin of the overcurrent protection chip, and a GND terminal pin of the voltage linear charger is grounded.
Preferably, the overcurrent protection chip is a TCS9225 chip.
Preferably, the voltage linear charger model may be a TP4054, TP4056 or TP7056 charger.
Preferably, the first diode, the second diode and the fourth diode are SS14 diodes, and the third diode is a light emitting diode.
Adopt above-mentioned scheme, the beneficial effects of the utility model are that:
the novel multi-port charging sound box circuit is designed, and charging wires of different types can be connected through the connected Type-c port, the MicroUSB port and the Mini USB port to charge the sound box, so that great convenience is brought to users; by arranging the first diode, the second diode and the fourth diode, reverse withstand voltage is small, and the adapter is prevented from being burnt out by reverse voltage; the voltage limiting and current limiting are carried out on external voltage and current through the arranged voltage linear charger, and the original devices of the mainboard are prevented from being burnt out.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
The reference numerals in the above description denote descriptions:
d1, a first diode, D2, a second diode, D3, a third diode, D4, a fourth diode, R18, a first resistor, R19, a second resistor, R20, a third resistor, R28, a fourth resistor,
u5, voltage linear charger, U6, overcurrent protection chip.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1, a multi-port charging speaker circuit includes a Type-c port, a Micro USB port, a MiniUSB port, an overcurrent protection chip U6 and a voltage linear charger U5, a first pin of the Type-c port is connected to a VIN pin of the overcurrent protection chip U6 through a second diode D2, a first pin of the Micro USB port is connected to a VIN pin of the overcurrent protection chip U6 through a first diode D1, a first pin of the Mini USB port is connected to a VIN pin of the overcurrent protection chip U6 through a fourth diode D4, and an OUT pin of the overcurrent protection chip U6 is connected to a CHRG pin of the voltage linear charger U5 through a third diode D3 and a first resistor R18 which are sequentially connected in series.
The utility model discloses in the preferred embodiment, the theory of operation: external voltage 5V enters from a Type-c port or a Micro USB port or a Mini USB port, passes through a second diode D2, a first diode D1 or a fourth diode D4, a first diode D1, a second diode D2 and a fourth diode D4 are SS14 diodes, an SS14 diode is high in working speed and high in current but low in reverse withstand voltage, so that the adapter can be prevented from being burnt out by reverse voltage, passes through an overcurrent protection chip U6, the overcurrent protection chip U6 is a TCS9225 chip, the overcurrent protection chip U6 is subjected to voltage limiting and current limiting, mainboard components are prevented from being burnt out, the voltage is limited to 6.2V, the adapter stops working when the voltage is higher than 6.2V, the current is limited to 2.3A, the adapter stops working when the current is higher than 2.3A, and finally the battery is charged through a voltage linear charger U5, and the voltage linear charger U5 can be a TP 394054, 4056 or a TP7056 Type charger.
The utility model discloses in the preferred embodiment, Type-c port and the fourth, fifth, sixth, seventh, eighth and ninth pin of Micro USB port all ground connection, and the fifth pin ground connection of Mini USB port.
The utility model discloses in the preferred embodiment, the OUT terminal pin of overcurrent protection chip U6 is connected with DC DECT terminal pin through third resistance R20 and the second resistance R19 ground connection that establishes ties in proper order between second resistance R19 and the third resistance R20, and the OUT terminal pin of overcurrent protection chip U6 is through first electric capacity C51 ground connection, and the GND terminal pin of overcurrent protection chip U6 is ground connection.
The utility model discloses in the preferred embodiment, the PROG terminal pin of the linear charger U5 of voltage passes through fourth resistance R28 ground connection, and the BAT terminal pin of the linear charger U5 of voltage is connected with the battery end of audio amplifier, and the VCC end of the linear charger U5 of voltage is connected with the OUT terminal pin of overcurrent protection chip U6, and the GND terminal pin ground connection of the linear charger U5 of voltage.
The utility model discloses in the preferred embodiment, overcurrent protection chip U6 is the TCS9225 chip, and the linear charger U5 model of voltage can be TP4054, TP4056 or TP7056 type charger.
The utility model discloses in the preferred embodiment, the linear charger U5 of voltage is that a complete single section lithium ion battery adopts the linear charger U5 of constant current/constant voltage, owing to adopted inside PMOSFET framework, in addition prevent the reverse charging circuit, so do not need outside detection resistor and isolation diode. The thermal feedback can regulate the charging current to limit the chip temperature under high power operation or high ambient temperature conditions. The charging voltage is fixed at 4.2V and the charging current can be set externally by a resistor. When the charging current drops to the set value 1/10 after reaching the final float voltage, the linear voltage charger U5 will automatically terminate the charging cycle, and when the input voltage (ac adapter or USB power supply) is removed, the linear voltage charger U5I will automatically enter a low current state, reducing the battery leakage current below 2 uA. The voltage linear charger U5 may also be placed in a shutdown mode to reduce the supply current.
The utility model discloses in the preferred embodiment, first diode D1, second diode D2 and fourth diode D4 are SS14 diode, and third D3 diode is emitting diode, and SS14 diode is the semiconductor device that an one-way (forward) switches on, and its main function has rectification, detection, follow current, protection etc. and SS14 diode operating speed is fast, and the electric current is big, but reverse withstand voltage is little, just so can prevent that reverse voltage from burning out the adapter.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides a multiport charging audio amplifier circuit which characterized in that: including Type-c port, Micro USB port, Mini USB port, overcurrent protection chip and the linear charger of voltage, the first pin of Type-c port pass through the second diode with the VIN end foot of overcurrent protection chip is connected, the first pin of Micro USB port pass through first diode with the VIN end foot of overcurrent protection chip is connected, the first pin of Mini USB port pass through the fourth diode with the VIN end foot of overcurrent protection chip is connected, the OUT end foot of overcurrent protection chip through the third diode and the first resistance that establish ties in proper order with the CHRG end foot of the linear charger of voltage is connected.
2. The multi-port rechargeable speaker circuit of claim 1, wherein: the fourth pin, the fifth pin, the sixth pin, the seventh pin, the eighth pin and the ninth pin of the Type-c port and the Micro USB port are all grounded, and the fifth pin of the Mini USB port is grounded.
3. The multi-port rechargeable speaker circuit of claim 1, wherein: the OUT terminal pin of the overcurrent protection chip is grounded through a third resistor and a second resistor which are sequentially connected in series, a DC DECT terminal pin is connected between the second resistor and the third resistor, the OUT terminal pin of the overcurrent protection chip is grounded through a first capacitor, and the GND terminal pin of the overcurrent protection chip is grounded.
4. The multi-port rechargeable speaker circuit of claim 1, wherein: the PROG terminal pin of the voltage linear charger is grounded through a fourth resistor, the BAT terminal pin of the voltage linear charger is connected with the battery terminal of the sound box, the VCC terminal of the voltage linear charger is connected with the OUT terminal pin of the overcurrent protection chip, and the GND terminal pin of the voltage linear charger is grounded.
5. The multi-port rechargeable speaker circuit of claim 1, wherein: the overcurrent protection chip is a TCS9225 chip.
6. The multi-port rechargeable speaker circuit of claim 1, wherein: the voltage linear charger model may be a TP4054, TP4056 or TP7056 charger.
7. The multi-port rechargeable speaker circuit of claim 1, wherein: the first diode, the second diode and the fourth diode are SS14 diodes, and the third diode is a light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921163653.6U CN210053234U (en) | 2019-07-23 | 2019-07-23 | Multiport charging sound box circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921163653.6U CN210053234U (en) | 2019-07-23 | 2019-07-23 | Multiport charging sound box circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210053234U true CN210053234U (en) | 2020-02-11 |
Family
ID=69399392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921163653.6U Expired - Fee Related CN210053234U (en) | 2019-07-23 | 2019-07-23 | Multiport charging sound box circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210053234U (en) |
-
2019
- 2019-07-23 CN CN201921163653.6U patent/CN210053234U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 Termination date: 20200723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |