CN116683592B - Intelligent power supply circuit - Google Patents
Intelligent power supply circuit Download PDFInfo
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- CN116683592B CN116683592B CN202310682102.5A CN202310682102A CN116683592B CN 116683592 B CN116683592 B CN 116683592B CN 202310682102 A CN202310682102 A CN 202310682102A CN 116683592 B CN116683592 B CN 116683592B
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 70
- 230000001276 controlling effect Effects 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 31
- 239000003381 stabilizer Substances 0.000 claims description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 239000010703 silicon Substances 0.000 claims description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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Abstract
The invention discloses an intelligent power supply circuit, which relates to the field of power supply, and comprises: the power supply module is used for converting alternating current into direct current and outputting the direct current to the voltage regulating output module; the signal acquisition processing module is used for acquiring a feedback signal of an internal circuit of the mobile phone and controlling the output voltage of the voltage regulating output module according to the feedback signal; compared with the prior art, the invention has the beneficial effects that: according to the invention, the constant voltage control module and the current regulating output module are arranged, so that when the mobile phone is required to be charged by using other brands of chargers, the voltage and current matching of the mobile phone charging can be ensured by regulating the voltage and the current; the delay output module is arranged, so that a user is prevented from directly using other brands of chargers to charge without voltage regulation and current regulation; a voice prompt module is arranged to prompt a user whether the constant voltage control module is started or not in time; the signal acquisition processing module and the voltage regulation output module are arranged, so that the original mobile phone feedback signal processing voltage regulation circuit is simplified.
Description
Technical Field
The invention relates to the field of power supply, in particular to an intelligent power supply circuit.
Background
The existing mobile phone charger often has various power supply outputs, and is matched with different mobile phones, such as various voltage and current outputs of 5V, 2A,5V, 3A,9V, 2A,9V, 2.2A,15V, 2A,15V, 2.5A and the like.
When the charger detects the type of the mobile phone and selects the output voltage, the output voltage and the current of the charger of different brands are often different based on the feedback signals of the internal circuit of the mobile phone, for example, the charging voltage and the charging current of the mobile phone of the brand A can be 5V, 2A or 9V, 2A or 15V and 2A, the charger of the brand B is adopted, the feedback signals of the mobile phone of the brand A are detected, the voltages of 9V and 2.2A are output, the voltage and the current of the mobile phone of the brand A are not met, and the total electric quantity of the battery of the mobile phone of the brand A is reduced.
The mobile phone battery charger has the defects that the total electric quantity of the mobile phone battery is easy to be reduced when the mobile phone is charged by using the chargers of different brands, and a user often uses the chargers of different brands to charge the mobile phone in an emergency, so that the phenomenon cannot be avoided and improvement is needed.
Disclosure of Invention
The present invention is directed to an intelligent power supply circuit, which solves the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
An intelligent power supply circuit comprising:
The power supply module is used for converting alternating current into direct current and outputting the direct current to the voltage regulating output module;
The signal acquisition processing module is used for acquiring a feedback signal of an internal circuit of the mobile phone and controlling the output voltage of the voltage regulating output module according to the feedback signal;
the voltage regulating output module is used for outputting stable direct-current voltage and supplying the stable direct-current voltage to the current regulating output module;
The current regulating output module is used for controlling output current and supplying the output current to the delay output module;
The delay output module is used for supplying power to the mobile phone after delay;
the constant voltage control module is used for controlling the voltage regulation output module to output fixed voltage through the fluctuation switch and driving the voice prompt module to work;
The voice prompt module is used for prompting that the constant voltage control module works and prompting that the flow is regulated;
The output end of the power supply module is connected with the first input end of the voltage regulating output module, the output end of the signal acquisition processing module is connected with the second input end of the voltage regulating output module, the output end of the voltage regulating output module is connected with the input end of the current regulating output module, the first output end of the current regulating output module is connected with the input end of the time delay output module, the second output end of the current regulating output module is connected with the first input end of the voice prompt module, the output end of the time delay output module is connected with the second input end of the voice prompt module, the first output end of the constant voltage control module is connected with the third input end of the voltage regulating output module, and the second output end of the constant voltage control module is connected with the third input end of the voice prompt module.
As still further aspects of the invention: the signal acquisition processing module comprises a first amplifier, a second amplifier and a third amplifier, wherein the in-phase end of the first amplifier is connected with a first signal, the in-phase end of the first amplifier is connected with a second signal, the in-phase end of the second amplifier is connected with a third signal, the in-phase end of the third amplifier is connected with a reference voltage, the output end of the first amplifier is connected with the second input end of the voltage regulating output module, the output end of the second amplifier is connected with the second input end of the voltage regulating output module, and the output end of the third amplifier is connected with the second input end of the voltage regulating output module.
As still further aspects of the invention: the voltage regulating output module comprises a voltage stabilizer, a third resistor, a first MOS tube, a fourth resistor, a fifth resistor, a sixth resistor, a second MOS tube, a third MOS tube and a third capacitor, wherein the input end of the voltage stabilizer is connected with the output end of the power supply module, the grounding end of the voltage stabilizer is connected with one end of the third resistor, one end of the fourth resistor, one end of the fifth resistor, one end of the sixth resistor and one end of the third capacitor, the other end of the third resistor is grounded, the output end of the voltage stabilizer is connected with the other end of the sixth resistor and the input end of the current regulating output module, the other end of the third resistor is connected with the D electrode of the first MOS tube, the S electrode of the first MOS tube is grounded, the other end of the fourth resistor is connected with the D electrode of the second MOS tube, the S electrode of the second MOS tube is grounded, the G electrode of the third MOS tube is connected with the output end of the signal acquisition and processing module, the first output end of the constant voltage control module, the G electrode of the second MOS tube is connected with the output end of the signal acquisition and processing module, and the output end of the third MOS tube is connected with the output end of the signal acquisition and processing module.
As still further aspects of the invention: the current regulating output module comprises a third diode, a first potentiometer and a fourth capacitor, wherein the negative electrode of the third diode is connected with one end of the first potentiometer and the output end of the voltage regulating output module, the positive electrode of the third diode is connected with the other end of the first potentiometer, one end of the fourth capacitor and the input end of the delay output module, and the other end of the fourth capacitor is grounded.
As still further aspects of the invention: the delay output module comprises an eighth resistor, a fifth MOS tube, a fourth diode and a fifth capacitor, one end of the eighth resistor is connected with the D pole of the fifth MOS tube and the first output end of the current regulating output module, the other end of the eighth resistor is connected with the negative pole of the fourth diode and one end of the fifth capacitor, the other end of the fifth capacitor is grounded, the positive pole of the fourth diode is connected with the G pole of the fifth MOS tube and the second input end of the voice prompt module, and the S pole output voltage of the fifth MOS tube charges the mobile phone.
As still further aspects of the invention: the constant voltage control module comprises a first diode, a second resistor, a first switch and a second diode, wherein the positive electrode of the first diode is connected with the grounding end of the voltage stabilizer, the negative electrode of the first diode is connected with one end of the second resistor, the other end of the second resistor is connected with one end of the first switch, the other end of the first switch is connected with the positive electrode of the second diode and the third input end of the voice prompt module, and the negative electrode of the second diode is connected with the G electrode of the first MOS tube.
As still further aspects of the invention: the voice prompt module comprises a fourth MOS tube, a voice chip, a silicon controlled rectifier and a seventh resistor, wherein the S electrode of the fourth MOS tube is connected with the negative electrode of the third diode, the D electrode of the fourth MOS tube is connected with one end of the voice chip, the G electrode of the fourth MOS tube is connected with the output end of the delay output module, the other end of the voice chip is connected with the positive electrode of the silicon controlled rectifier, the negative electrode of the silicon controlled rectifier is connected with the positive electrode of the third diode, the control electrode of the silicon controlled rectifier is connected with one end of the seventh resistor, and the other end of the seventh resistor is connected with the second output end of the constant voltage control module.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the constant voltage control module and the current regulating output module are arranged, so that when the mobile phone is required to be charged by using other brands of chargers, the voltage and current matching of the mobile phone charging can be ensured by regulating the voltage and the current; the delay output module is arranged, so that a user is prevented from directly using other brands of chargers to charge without voltage regulation and current regulation; a voice prompt module is arranged to prompt a user whether the constant voltage control module is started or not in time; the signal acquisition processing module and the voltage regulation output module are arranged, so that the original mobile phone feedback signal processing voltage regulation circuit is simplified.
Drawings
Fig. 1 is a schematic diagram of an intelligent power supply circuit.
Fig. 2 is a circuit diagram of a power supply module.
Fig. 3 is a circuit diagram of a signal acquisition processing module.
Fig. 4 is a partial circuit diagram of a smart power supply circuit.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1, an intelligent power supply circuit includes:
the power supply module 1 is used for converting alternating current into direct current and outputting the direct current to the voltage regulating output module 3;
the signal acquisition processing module 2 is used for acquiring a feedback signal of an internal circuit of the mobile phone and controlling the output voltage of the voltage regulating output module 3 according to the feedback signal;
the voltage regulating output module 3 is used for outputting stable direct-current voltage and supplying the stable direct-current voltage to the current regulating output module 4;
the current regulating output module 4 is used for controlling the output current and supplying the output current to the delay output module 5;
the delay output module 5 is used for supplying power to the mobile phone after delay;
The constant voltage control module 6 is used for controlling the voltage regulation output module 3 to output fixed voltage through the fluctuation switch and driving the voice prompt module 7 to work;
the voice prompt module 7 is used for prompting that the constant voltage control module 6 works and prompting that the current is regulated;
The output end of the power supply module 1 is connected with the first input end of the voltage regulating output module 3, the output end of the signal acquisition processing module 2 is connected with the second input end of the voltage regulating output module 3, the output end of the voltage regulating output module 3 is connected with the input end of the current regulating output module 4, the first output end of the current regulating output module 4 is connected with the input end of the time delay output module 5, the second output end of the current regulating output module 4 is connected with the first input end of the voice prompt module 7, the output end of the time delay output module 5 is connected with the second input end of the voice prompt module 7, the first output end of the constant voltage control module 6 is connected with the third input end of the voltage regulating output module 3, and the second output end of the constant voltage control module 6 is connected with the third input end of the voice prompt module 7.
In particular embodiments: referring to fig. 2, the power supply module 1 includes a transformer W, a rectifier T, a first capacitor C1, a second capacitor C2, a first inductor L1, and a first resistor R1, wherein the transformer W is used for reducing the voltage of the ac power, the rectifier T is used for converting the ac power into the dc power, the first capacitor C1, the second capacitor C2, and the first inductor L1 are used for filtering, and the output dc power is finally supplied to a subsequent circuit.
In this embodiment: referring to fig. 3, the signal acquisition processing module 2 includes a first amplifier U1, a second amplifier U2, and a third amplifier U3, wherein an in-phase end of the first amplifier U1 is connected to the first signal FB1, an opposite-phase end of the first amplifier U1 is connected to the second signal FB2, an in-phase end of the second amplifier U2 is connected to the second signal FB2, an opposite-phase end of the second amplifier U2 is connected to the third signal FB3, an in-phase end of the third amplifier U3 is connected to the third signal FB3, an opposite-phase end of the third amplifier U3 is connected to the reference voltage VREF, an output end of the first amplifier U1 is connected to a second input end of the voltage regulating output module 3, an output end of the second amplifier U2 is connected to a second input end of the voltage regulating output module 3, and an output end of the third amplifier U3 is connected to a second input end of the voltage regulating output module 3.
Explaining the first signal FB1, the second signal FB2, and the third signal FB3 specifically, the charger may output multiple voltages and currents such as 5V, 2A,9V, 2A,15V, and 2A, so as to satisfy charging of different models of a brand-a mobile phone, for example, a brand-a mobile phone, and a charging loop with 5V and 2A (first speed charging) is built in, and feedback the first signal FB1; a charging loop of 5V, 2A and 9V, 2A (second speed charging) is built in, and thus the first signal FB1, the second signal FB2 are fed back; charging loops of 5V, 2A,9V, 2A,15V and 2A (third speed charging) are built in and feed back the first signal FB1, the second signal FB2 and the third signal FB3.
When the first signal FB1 is fed back, the first amplifier U1 outputs a high level (common point a); when the first signal FB1 and the second signal FB2 are fed back, the second amplifier U2 outputs a high level (common point B); when the first signal FB1, the second signal FB2, and the third signal FB3 are fed back, the third amplifier U3 outputs a high level (common point C).
In another embodiment: the reference voltage VREF may be obtained by a zener diode.
In this embodiment: referring to fig. 4, the voltage regulation output module 3 includes a voltage stabilizer U4, a third resistor R3, a first MOS transistor V1, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a second MOS transistor V2, a third MOS transistor V3, and a third capacitor C3, where an input end of the voltage stabilizer U4 is connected to an output end of the power supply module 1, a ground end of the voltage stabilizer U4 is connected to one end of the third resistor R3, one end of the fourth resistor R4, one end of the fifth resistor R5, one end of the sixth resistor R6, one end of the third capacitor C3, another end of the third capacitor C3 is grounded, an output end of the voltage stabilizer U4 is connected to the other end of the sixth resistor R6, an input end of the current regulation output module 4, another end of the third resistor R3 is connected to a D pole of the first MOS transistor V1, an S pole of the first MOS transistor V1 is grounded, another end of the fourth resistor R4 is connected to a D pole of the second MOS transistor V2, an S pole of the second MOS transistor V2 is grounded, another end of the fifth resistor R5 is connected to the S pole of the third MOS transistor V3 is connected to the third MOS transistor V2, another end of the third MOS transistor V2 is connected to the output end of the signal processing module, and the output end of the third MOS transistor V2 is connected to the third MOS signal processing module is connected to the third pole of the third MOS signal collecting terminal V2.
Based on different amplifiers output high level, so that different MOS tubes are conducted (a first MOS tube V1, a second MOS tube V2 and a third MOS tube V3), the voltage output by the voltage stabilizer U4 is different, different output voltages are completed, and specifically, when the first signal FB1 is fed back, the first MOS tube V1 is conducted, the voltage stabilizer U4 outputs specific voltage, and 5V voltage is output through the current regulating output module 4 and the time delay output module 5, and the voltage corresponds to a charging circuit in the mobile phone. When the first signal FB1 and the second signal FB2 are fed back, the second MOS tube V2 is conducted, and finally 9V voltage is output; when the first signal FB1, the second signal FB2, and the third signal FB3 are fed back, the third MOS transistor V3 is turned on, and finally a 15V voltage is output.
In another embodiment: the first MOS transistor V1, the second MOS transistor V2, and the third MOS transistor V3 may be replaced with transistors.
In this embodiment: referring to fig. 4, the current-regulating output module 4 includes a third diode D3, a first potentiometer RP1, and a fourth capacitor C4, wherein a cathode of the third diode D3 is connected to one end of the first potentiometer RP1 and an output end of the voltage-regulating output module 3, an anode of the third diode D3 is connected to the other end of the first potentiometer RP1, one end of the fourth capacitor C4, an input end of the delay output module 5, and the other end of the fourth capacitor C4 is grounded.
The third diode D3 is used as a zener diode, so that the voltage on the first potentiometer RP1 is fixed, and the required current is obtained by adjusting the resistance value of the first potentiometer RP1, and the direct current with 2A or other magnitudes is matched.
In another embodiment: the first potentiometer RP1 can be replaced by a common resistor, so that the current finally output to the mobile phone cannot be adjusted.
In this embodiment: referring to fig. 4, the delay output module 5 includes an eighth resistor R8, a fifth MOS transistor V5, a fourth diode D4, and a fifth capacitor C5, one end of the eighth resistor R8 is connected to the D pole of the fifth MOS transistor V5, the first output end of the current-regulating output module 4, the other end of the eighth resistor R8 is connected to the negative pole of the fourth diode D4, one end of the fifth capacitor C5, the other end of the fifth capacitor C5 is grounded, the positive pole of the fourth diode D4 is connected to the G pole of the fifth MOS transistor V5, the second input end of the voice prompt module 7, and the S pole output voltage of the fifth MOS transistor V5 charges the mobile phone.
When voltage is input, the fifth capacitor C5 is charged through the eighth resistor R8, and when the voltage on the fifth capacitor C5 rises enough to turn on the fourth diode D4 (zener diode) (this time is a delay time), the fifth MOS transistor V5 is turned on, and the voltage supplies power to the mobile phone through the fifth MOS transistor V5. The delay time is set because a user often directly inserts a charger to charge the mobile phone, and the charging voltage and the charging current are possibly mismatched with the rated voltage and the rated current of the mobile phone, so that the delay time is set, and the time response is available.
In another embodiment: the eighth resistor R8 can be replaced by a potentiometer, so that the delay time can be changed at will.
In this embodiment: referring to fig. 4, the constant voltage control module 6 includes a first diode D1, a second resistor R2, a first switch S1, and a second diode D2, wherein a positive electrode of the first diode D1 is connected to a ground terminal of the voltage regulator U4, a negative electrode of the first diode D1 is connected to one end of the second resistor R2, another end of the second resistor R2 is connected to one end of the first switch S1, another end of the first switch S1 is connected to a positive electrode of the second diode D2, a third input terminal of the voice prompt module 7, and a negative electrode of the second diode D2 is connected to a G electrode of the first MOS transistor V1.
Under the normal state, for example, different voltage and current requirements of 15V, 2A,15V and 2.5A, the current output can be regulated through the current regulating output module 4, and the voltage and the current required by the mobile phone are matched.
The voltage and current required by special mobile phones such as 16V and 2.2A cannot meet the requirement of a user, the first switch S1 is pressed down, the first MOS tube V1 is conducted, the voltage of 5V is finally output (the minimum input voltage of the mobile phone is 5V generally), at the moment, the user obtains the required current by adjusting the resistance value of the first potentiometer RP1, and finally the voltage and current matched with the mobile phone are output and are charged at the first charging speed.
In another embodiment: the first diode D1 may be omitted, and the first diode D1 functions as a light emitting diode for indication.
In this embodiment: referring to fig. 4, the voice prompt module 7 includes a fourth MOS tube V4, a voice chip U5, a silicon controlled rectifier Z1, and a seventh resistor R7, wherein an S pole of the fourth MOS tube V4 is connected to a negative pole of the third diode D3, a D pole of the fourth MOS tube V4 is connected to one end of the voice chip U5, a G pole of the fourth MOS tube V4 is connected to an output end of the delay output module 5, the other end of the voice chip U5 is connected to an anode of the silicon controlled rectifier Z1, a negative pole of the silicon controlled rectifier Z1 is connected to an anode of the third diode D3, a control pole of the silicon controlled rectifier Z1 is connected to one end of the seventh resistor R7, and the other end of the seventh resistor R7 is connected to a second output end of the constant voltage control module 6.
When the first switch S1 is closed, a high level is output at the common point D to trigger the silicon controlled rectifier Z1 to be conducted, so that the voice chip U5 is conducted, the voice prompt 'please pay attention to the voltage and the current', and the situation that a user forgets to adjust the current after controlling the first switch S1 to be closed is avoided; along with the progress of the voice, the final delay output module 5 outputs a high level (common point E) so that the fourth MOS transistor V4 is turned off and the voice broadcasting is stopped. If the user has last charged and has closed first switch S1, when charging again, based on first switch S1 is closed, pronunciation chip U5 voice prompt avoids charging the cell-phone brand difference twice to cause the mistake, for cell-phone output voltage current based on delay output module 5 delay, has sufficient time to handle the problem.
In another embodiment: the silicon controlled rectifier Z1 can be replaced by an MOS tube to trigger the conduction of the voice chip U5.
The working principle of the invention is as follows: the power supply module 1 is used for converting alternating current into direct current and outputting the direct current to the voltage regulating output module 3; the signal acquisition processing module 2 is used for acquiring a feedback signal of an internal circuit of the mobile phone and controlling the output voltage of the voltage regulating output module 3 according to the feedback signal; the voltage regulating output module 3 is used for outputting stable direct-current voltage and supplying the stable direct-current voltage to the current regulating output module 4; the current regulating output module 4 is used for controlling output current and supplying the output current to the delay output module 5; the delay output module 5 is used for supplying power to the mobile phone after delay; the constant voltage control module 6 is used for controlling the voltage regulation output module 3 to output fixed voltage through the fluctuation switch and driving the voice prompt module 7 to work; the voice prompt module 7 is used for prompting that the constant voltage control module 6 works and prompting that the current is regulated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. An intelligent power supply circuit is characterized in that:
The intelligent power supply circuit comprises:
The power supply module is used for converting alternating current into direct current and outputting the direct current to the voltage regulating output module;
The signal acquisition processing module is used for acquiring a feedback signal of an internal circuit of the mobile phone and controlling the output voltage of the voltage regulating output module according to the feedback signal;
the voltage regulating output module is used for outputting stable direct-current voltage and supplying the stable direct-current voltage to the current regulating output module;
The current regulating output module is used for controlling output current and supplying the output current to the delay output module;
The delay output module is used for supplying power to the mobile phone after delay;
the constant voltage control module is used for controlling the voltage regulation output module to output fixed voltage through the fluctuation switch and driving the voice prompt module to work;
The voice prompt module is used for prompting that the constant voltage control module works and prompting that the flow is regulated;
The output end of the power supply module is connected with the first input end of the voltage regulating output module, the output end of the signal acquisition processing module is connected with the second input end of the voltage regulating output module, the output end of the voltage regulating output module is connected with the input end of the current regulating output module, the first output end of the current regulating output module is connected with the input end of the time delay output module, the second output end of the current regulating output module is connected with the first input end of the voice prompt module, the output end of the time delay output module is connected with the second input end of the voice prompt module, the first output end of the constant voltage control module is connected with the third input end of the voltage regulating output module, and the second output end of the constant voltage control module is connected with the third input end of the voice prompt module;
The voltage regulating output module comprises a voltage stabilizer, a third resistor, a first MOS tube, a fourth resistor, a fifth resistor, a sixth resistor, a second MOS tube, a third MOS tube and a third capacitor, wherein the input end of the voltage stabilizer is connected with the output end of the power supply module, the grounding end of the voltage stabilizer is connected with one end of the third resistor, one end of the fourth resistor, one end of the fifth resistor, one end of the sixth resistor and one end of the third capacitor, the other end of the third resistor is grounded, the output end of the voltage stabilizer is connected with the other end of the sixth resistor and the input end of the current regulating output module, the other end of the third resistor is connected with the D electrode of the first MOS tube, the S electrode of the first MOS tube is grounded, the other end of the fourth resistor is connected with the D electrode of the second MOS tube, the S electrode of the second MOS tube is grounded, the G electrode of the third MOS tube is connected with the output end of the signal acquisition and processing module, the first output end of the constant voltage control module, the G electrode of the second MOS tube is connected with the output end of the signal acquisition and processing module, and the output end of the third MOS tube is connected with the output end of the signal acquisition and processing module.
2. The intelligent power supply circuit according to claim 1, wherein the signal acquisition processing module comprises a first amplifier, a second amplifier, and a third amplifier, the in-phase end of the first amplifier is connected with the first signal, the inverting end of the first amplifier is connected with the second signal, the in-phase end of the second amplifier is connected with the second signal, the inverting end of the second amplifier is connected with the third signal, the in-phase end of the third amplifier is connected with the third signal, the inverting end of the third amplifier is connected with the reference voltage, the output end of the first amplifier is connected with the second input end of the voltage regulating output module, the output end of the second amplifier is connected with the second input end of the voltage regulating output module, and the output end of the third amplifier is connected with the second input end of the voltage regulating output module.
3. The intelligent power supply circuit according to claim 1, wherein the current-regulating output module comprises a third diode, a first potentiometer and a fourth capacitor, the negative electrode of the third diode is connected with one end of the first potentiometer and the output end of the voltage-regulating output module, the positive electrode of the third diode is connected with the other end of the first potentiometer, one end of the fourth capacitor and the input end of the time-delay output module, and the other end of the fourth capacitor is grounded.
4. The intelligent power supply circuit according to claim 1, wherein the delay output module comprises an eighth resistor, a fifth MOS tube, a fourth diode and a fifth capacitor, one end of the eighth resistor is connected with the D pole of the fifth MOS tube, the other end of the eighth resistor is connected with the negative pole of the fourth diode and one end of the fifth capacitor, the other end of the fifth capacitor is grounded, the positive pole of the fourth diode is connected with the G pole of the fifth MOS tube and the second input end of the voice prompt module, and the S pole output voltage of the fifth MOS tube charges the mobile phone.
5. The intelligent power supply circuit according to claim 1, wherein the constant voltage control module comprises a first diode, a second resistor, a first switch and a second diode, wherein the positive electrode of the first diode is connected with the ground end of the voltage stabilizer, the negative electrode of the first diode is connected with one end of the second resistor, the other end of the second resistor is connected with one end of the first switch, the other end of the first switch is connected with the positive electrode of the second diode and the third input end of the voice prompt module, and the negative electrode of the second diode is connected with the G electrode of the first MOS tube.
6. The intelligent power supply circuit according to claim 3, wherein the voice prompt module comprises a fourth MOS tube, a voice chip, a silicon controlled rectifier and a seventh resistor, the S electrode of the fourth MOS tube is connected with the negative electrode of the third diode, the D electrode of the fourth MOS tube is connected with one end of the voice chip, the G electrode of the fourth MOS tube is connected with the output end of the delay output module, the other end of the voice chip is connected with the positive electrode of the silicon controlled rectifier, the negative electrode of the silicon controlled rectifier is connected with the positive electrode of the third diode, the control electrode of the silicon controlled rectifier is connected with one end of the seventh resistor, and the other end of the seventh resistor is connected with the second output end of the constant voltage control module.
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