CN211556946U - Power supply charging management module - Google Patents
Power supply charging management module Download PDFInfo
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- CN211556946U CN211556946U CN202020599508.9U CN202020599508U CN211556946U CN 211556946 U CN211556946 U CN 211556946U CN 202020599508 U CN202020599508 U CN 202020599508U CN 211556946 U CN211556946 U CN 211556946U
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- 101710116852 Molybdenum cofactor sulfurase 1 Proteins 0.000 abstract 3
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- 230000008569 process Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a power supply charging management module, including resistance R16, resistance R8, field effect transistor MOS1, PNP triode Q1, ringing elimination circuit and mobile phone battery, ringing elimination circuit's one end and field effect transistor MOS 1's source electrode are connected, ringing elimination circuit's the other end and PNP triode Q1's base are connected, field effect transistor MOS 1's drain electrode and mobile phone owner chip are connected, resistance R16's one end and field effect transistor MOS 1's grid are connected, resistance R16's the other end is as the second port that charges, PNP triode Q1's projecting pole and first port that charges are connected, resistance R8's one end and PNP triode Q1's collecting electrode are connected, resistance R8's the other end and mobile phone battery are connected, be equipped with first node on the circuit between resistance R8 and the collecting electrode of PNP triode Q1, first node is connected with mobile phone owner chip; the ringing phenomenon in the power supply charging management module is effectively eliminated by adding the ringing elimination circuit, so that the stability of an integrated circuit signal in the power supply charging management module is enhanced.
Description
Technical Field
The utility model relates to a function cell-phone power module field specifically is power management module that charges.
Background
A power supply is a device, also called a power supply, that supplies power to an electronic device, which supplies the electrical energy required by all components in the electronic device. The power of the power supply, and whether the current and the voltage are stable directly influence the working performance and the service life of the mobile phone.
When the functional mobile phone is charged, the accumulation of the scores of current and potential difference in time is actually completed, in the charging process, the negative electrode of the charger connector is contacted with the negative electrode of the battery, the positive electrode of the charger is contacted with the positive electrode of the battery, and electrons are pumped out from the positive electrode and returned to the power grid while injecting electrons from the power grid to the negative electrode of the battery by applying a higher voltage in the same direction. On the other hand, the charger also provides a part of redundant electrons to flow to the mobile phone from the position of the negative electrode, so that the normal operation of the mobile phone is kept, and the electrons return to the vicinity of the positive electrode and return to the power grid after passing through the components, thereby completing the charging of the functional mobile phone.
In the development and application of the existing functional mobile phone, the configuration position of the power supply is more and more important, while the power supply of the ordinary functional mobile phone usually experiences the reflection of the electrical signal due to the change of the sensed impedance in the transmission process of the electrical signal, when the sensed impedance of the signal is reduced, the negative reflection occurs, the reflected negative voltage can enable the electrical signal in the integrated circuit of the power supply to generate undershoot, so that the electrical signal can generate signal ringing, and the ringing power can be generated by the signal ringing to cause the instability of the signal of the integrated circuit in the power supply management module, thereby affecting the movement of the electronic in the power supply management module and greatly affecting the charging of the functional mobile phone. Therefore, the ringing needs to be eliminated, and how to eliminate the ringing phenomenon in the power management module while ensuring the charging of the functional mobile phone becomes a problem to be solved urgently in the field of the power module of the functional mobile phone.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome thereby prior art's functional mobile phone can not effectively eliminate the ringing when charging and lead to the unstable not enough of integrated circuit signal transmission, provide a power management module that charges, eliminate the effectual ringing phenomenon with in the power management module that charges of circuit through increasing the ringing to strengthen the stability of the integrated circuit signal among the power management module that charges.
The purpose of the utility model is mainly realized through the following technical scheme:
the power supply charging management module comprises a resistor R8, a field effect transistor MOS1, a PNP triode Q1, a ringing elimination circuit and a mobile phone battery, wherein one end of the ringing elimination circuit is connected with the drain electrode of the field effect transistor MOS1, the other end of the ringing elimination circuit is connected with the base electrode of the PNP triode Q1, the source electrode of the field effect transistor MOS1 is connected with a main chip of the mobile phone, the emitter electrode of the PNP triode Q1 is connected with a first charging port, the grid electrode of the field effect transistor is connected with a second charging port, a filter circuit is arranged on a line between the emitter electrode of the PNP triode Q1 and the first charging port and a line between the grid electrode of the field effect transistor MOS1 and the second charging port, one end of the resistor R8 is connected with the collector electrode of the PNP triode Q1, the other end of the resistor R8 is connected with the mobile phone battery, a first node is arranged on a, the first node is connected with the mobile phone main chip.
The utility model provides a field effect transistor MOS1 and PNP triode Q1 constitute power charge management module's core, and it is more difficult to really accomplish impedance match usually in circuit design, and the reason has two: first, the impedance of the wiring receives the restriction in the design aspects such as area on the actual printed board, and the second, the input impedance and the output impedance of circuit are not fixed basically like analog circuit, but a nonlinear thing, so can produce ringing, the utility model discloses in through setting up the ringing elimination circuit, consume the ringing power among the integrated circuit to it is stable to have ensured the integrated circuit signal transmission of power charging management module, and through the circuit control input current who uses resistance R8 as the core, and charge to the cell-phone battery through the core that field effect transistor MOS1 and PNP triode Q1 constitute power charging management module, the main process of charging is: an external charger introduces current into a field effect transistor MOS1 and a PNP triode Q1 through a first charging port to form the core of a power supply charging management module, the field effect transistor MOS1 and the PNP triode Q1 form the core of the power supply charging management module, the input current is controlled through a circuit taking a resistor R8 as the core, and then a mobile phone battery is charged through a resistor R8; the utility model provides a first charging port and second charging port are connected with outside charger, first charging port is VCHG circuit, second charging port and is VCHG-D circuit, use resistance R8 to be connected with mobile phone battery directly for the circuit of core, under the three combined action, the effectual normal charge who ensures power management module that charges to eliminate the effectual ringing phenomenon with in the power management module that charges through increasing the ringing elimination circuit, thereby strengthen the stability of the integrated circuit signal among the power management module that charges.
Further, the filter circuit comprises a resistor R16, and the resistor R16 is arranged on a line between the gate of the field effect transistor MOS1 and the second charging port. When the function cell-phone charges, the spike pulse often can be produced in the twinkling of an eye of switch-on and outage, and the spike pulse has very big burning out and punctures the possibility of charging management module, in order to eliminate the influence of spike pulse, the utility model discloses filter circuit has been set up the utility model provides a spike pulse that filter circuit can the filtering plug charging wire brought to protection field effect transistor MOS1 and PNP triode Q1 do not receive the harm.
Furthermore, the filter circuit further comprises a resistor R15 and a capacitor C46, one end of the resistor R15 is connected to a line between the emitter of the PNP triode Q1 and the first charging port, the other end of the resistor R15 is connected with the other end, opposite to the gate end, of the resistor R16 connected with the field effect transistor MOS1, the connection node is a fourth node, one end of the capacitor C46 is connected with the fourth node, and the other end of the capacitor C46 is grounded. The filter circuit composed of the resistor R15 and the capacitor C46 can effectively filter high-frequency waves, so that spike pulses disappear, and the field effect transistor MOS1 and the PNP triode Q1 cannot be influenced or damaged.
Further, the ringing elimination circuit comprises a resistor R11, one end of the resistor R11 is connected with the drain electrode of the field-effect transistor MOS1, the other end of the resistor R11 is connected with the base electrode of the PNP triode Q1, a second node is arranged on a line between the resistor R11 and the drain electrode of the field-effect transistor MOS1, and the second node is connected with the drain electrode of the field-effect transistor MOS1 through two lines. In the charging circuit, the second node is connected with the source of the field effect transistor MOS1 by two lines, so as to avoid ringing of the signal, the principle is that the resistor consumes ringing power, it can also be considered as reducing the Q value of the transmission line, the resistor is arranged on the signal line with higher requirement on signal integrity, and because the core formed by the field effect transistor MOS1 and the PNP triode Q1 has a stable time and a holding time, the ringing phenomenon can be eliminated through the consumption of the resistor R11, and the charging stability of the power supply charging management module is ensured.
Furthermore, a third node is arranged on a line between the collector of the PNP triode Q1 and the first node, and the third node and the collector of the PNP triode Q1 are connected by two lines. The third node is connected with the collector of the PNP triode Q1 by two lines, so that the ringing phenomenon leading to the mobile phone battery is eliminated in order to avoid the ringing of the signal.
To sum up, compared with the prior art, the utility model has the following beneficial effects:
(1) first charging port is VCHG circuit, second charging port and is VCHG-D circuit to resistance R8 is direct to be connected with mobile phone battery for the circuit of core, under the three combined action, the effectual normal charge who ensures power management module that charges to eliminate the effectual ringing phenomenon with in the power management module that charges through increasing the ringing, thereby strengthen the stability of the integrated circuit signal among the power management module that charges.
(2) The utility model discloses with the resistance setting on requiring higher signal line to signal integrality to because the core that field effect transistor MOS1 and PNP triode Q1 formed has a stabilization time and hold time, so through resistance R11's consumption, can eliminate ringing, guarantee power charge management module's the stability of charging.
(3) The utility model provides a peak pulse that filter circuit can the filtering plug charging wire brought to protection field effect transistor MOS1 and PNP triode Q1 do not receive the harm.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic circuit diagram of the power charging management module of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example (b):
as shown in fig. 1, the CHG-DRV line, VCHG-D line and I-SENSE line in this embodiment are all connected to the main chip of the functional handset, the model of the main chip is ASIC-SC6531F-175-0.4, and the VCHG line and VCHG-D line are also connected to the external charger.
The power supply charging management module in this embodiment includes a resistor R8, a fet MOS1, a PNP triode Q1, a ringing cancellation circuit, and a mobile phone battery, one end of the ringing cancellation circuit is connected to the drain of the fet MOS1, the other end of the ringing cancellation circuit is connected to the base of the PNP triode Q1, the source of the fet MOS1 is connected to the mobile phone main chip, the emitter of the PNP triode Q1 is connected to a first charging port, the gate of the fet MOS1 is connected to a second charging port, a filter circuit is disposed on the line between the emitter of the PNP triode Q1 and the first charging port, and the line between the gate of the fet and the second charging port, one end of the resistor R8 is connected to the collector of the PNP triode Q1, the other end of the resistor R8 is connected to the mobile phone battery, a first node is disposed on the line between the resistor R8 and the collector of the PNP triode Q1, the first node is connected with the mobile phone main chip.
The R16 of this embodiment plays a role of protecting a core formed by a fet MOS1 and a PNP triode Q1 in a circuit with a resistor R8 as a core, a connection end of the fet MOS1 and a main chip of the mobile phone is a CHG-DRV end, the charging is controlled to be turned on and off by a control signal of the main chip of the mobile phone sent from the CHG-DRV end, so as to control the charging module, the first charging port is a VCHG line, the second charging port is a VCHG-D line, the VCHG line and the VCHG-D line are connected to an external charger, wherein the VCHG-D line plays a role of controlling a charging state, the first node is connected to an I-SENSE end of the main chip of the mobile phone, the I-SENSE end is directly connected to a voltage monitor, and the voltage of R8 at a charging position of the battery of the mobile phone is monitored by the voltage monitor, so that the CHG-DRV end and the VCHG-D line can effectively control the charging current, therefore, the aim of controlling the stable and safe charging of the functional mobile phone is fulfilled.
On the basis, the filter circuit comprises a resistor R16, and the resistor R16 is arranged on a line between the grid electrode of the field effect transistor MOS1 and the second charging port; the filter circuit further comprises a resistor R15 and a capacitor C46, one end of the resistor R15 is connected to a line between an emitter of the PNP triode Q1 and the first charging port, the other end of the resistor R15 is connected with the other end, opposite to the gate end of the field-effect transistor MOS1 connected with the resistor R16, of the other end of the resistor R15, the connection node is a fourth node, one end of the capacitor C46 is connected with the fourth node, and the other end of the capacitor C46 is grounded; the ringing elimination circuit comprises a resistor R11, one end of a resistor R11 is connected with the drain electrode of a field-effect transistor MOS1, the other end of the resistor R11 is connected with the base electrode of a PNP triode Q1, a second node is arranged on a line between a resistor R11 and the drain electrode of a field-effect transistor MOS1, and the second node is connected with the drain electrode of a field-effect transistor MOS1 by two lines; and a third node is arranged on a line between the collector of the PNP triode Q1 and the first node, and the third node and the collector of the PNP triode Q1 are connected by two lines.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The power supply charging management module is characterized by comprising a resistor R8, a field effect transistor MOS1, a PNP triode Q1, a ringing elimination circuit and a mobile phone battery, wherein one end of the ringing elimination circuit is connected with the drain electrode of the field effect transistor MOS1, the other end of the ringing elimination circuit is connected with the base electrode of the PNP triode Q1, the source electrode of the field effect transistor MOS1 is connected with a mobile phone main chip, the emitter electrode of the PNP triode Q1 is connected with a first charging port, the grid electrode of the field effect transistor MOS1 is connected with a second charging port, a filter circuit is arranged on a line between the emitter electrode of the PNP triode Q1 and the first charging port and a line between the grid electrode of the PNP triode Q1 and the second charging port, one end of the resistor R8 is connected with the collector electrode of the PNP triode Q1, the other end of the resistor R8 is connected with the mobile phone battery, a first node is arranged on a, the first node is connected with the mobile phone main chip.
2. The power supply charge management module of claim 1, wherein the filter circuit comprises a resistor R16, and the resistor R16 is provided on a line between the gate of the fet MOS1 and the second charging port.
3. The power supply charge management module of claim 2, wherein the filter circuit further comprises a resistor R15 and a capacitor C46, one end of the resistor R15 is connected to a line between the emitter of the PNP transistor Q1 and the first charge port, the other end of the resistor R15 is connected to the other end of the resistor R16 opposite to the gate end of the field effect transistor MOS1, the connection node is a fourth node, and one end of the capacitor C46 is connected to the fourth node, and the other end is grounded.
4. The power supply charge management module of claim 1, wherein the ringing cancellation circuit comprises a resistor R11, one end of the resistor R11 is connected to the drain of the fet MOS1, the other end of the resistor R11 is connected to the base of the PNP transistor Q1, a second node is provided on a line between the resistor R11 and the drain of the fet MOS1, and the second node is connected to the drain of the fet MOS1 in two lines.
5. The power supply charge management module of claim 1, wherein a third node is provided on a line between the collector of the PNP transistor Q1 and the first node, and the third node is connected to the collector of the PNP transistor Q1 in two lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020599508.9U CN211556946U (en) | 2020-04-20 | 2020-04-20 | Power supply charging management module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020599508.9U CN211556946U (en) | 2020-04-20 | 2020-04-20 | Power supply charging management module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211556946U true CN211556946U (en) | 2020-09-22 |
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ID=72496631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020599508.9U Expired - Fee Related CN211556946U (en) | 2020-04-20 | 2020-04-20 | Power supply charging management module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211556946U (en) |
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2020
- 2020-04-20 CN CN202020599508.9U patent/CN211556946U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 |