CN218124331U - Charger circuit and charger - Google Patents
Charger circuit and charger Download PDFInfo
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- CN218124331U CN218124331U CN202220863716.4U CN202220863716U CN218124331U CN 218124331 U CN218124331 U CN 218124331U CN 202220863716 U CN202220863716 U CN 202220863716U CN 218124331 U CN218124331 U CN 218124331U
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Abstract
The utility model provides a charger circuit, this charger circuit include input module, input filter module, input rectifier module, power factor correction module, voltage conversion module, output rectifier filter module and keep apart output module. The input module is used for leading in input voltage; the input filtering module is used for carrying out filtering operation on the input voltage; the input rectifying module is used for rectifying the input voltage after the filtering operation; the power factor correction module is used for carrying out power factor correction operation on the input voltage after rectification operation; the voltage conversion module is used for converting the input voltage into the output voltage of the set voltage; the output rectifying and filtering module is used for carrying out rectifying and filtering operation on the output voltage; the isolation output module is used for outputting the output voltage after the rectification filtering operation as the driving voltage of the charger. The utility model also provides a charger.
Description
Technical Field
The utility model relates to a circuit field, in particular to charger circuit and charger.
Background
In modern society, chargers can be used to charge batteries inside electronic devices such as mobile phones. During the charging process of the battery, the charging voltage is easy to fluctuate due to the fact that the battery is charged in an over-voltage mode, and the battery can be overcharged due to the fact that the charging voltage is easy to fluctuate. Therefore, the technical problem that the existing charger generates fluctuating charging voltage and easily damages the battery exists.
Therefore, it is desirable to provide a charger circuit and a charger to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a charger circuit and charger has effectively solved the technical problem of the voltage fluctuation fragile battery of current charger.
The utility model provides a charger circuit, it includes:
the input module is used for leading in input voltage;
the input filtering module is used for carrying out filtering operation on the input voltage;
the input rectifying module is used for rectifying the input voltage after the filtering operation;
the power factor correction module is used for carrying out power factor correction operation on the input voltage after rectification operation;
the voltage conversion module is used for converting the input voltage into the output voltage of the set voltage;
the output rectifying and filtering module is used for carrying out rectifying and filtering operation on the output voltage; and
and the isolation output module is used for outputting the output voltage after the rectification filtering operation as the driving voltage of the charger.
In the charger circuit of the present invention, the charger circuit further comprises:
the overvoltage and undervoltage detection module is used for carrying out overvoltage and undervoltage detection on the input voltage and feeding back a detection result to the PFC control module; and
and the PFC control module is respectively connected with the over-voltage and under-voltage detection module and the power factor correction module and is used for carrying out power factor correction operation on the input voltage according to the detection result of the over-voltage and under-voltage detection.
In the charger circuit of the present invention, the charger circuit further comprises:
the overvoltage protection module is used for detecting the output voltage of the isolation output module and controlling the voltage conversion module through the direct current control module according to the voltage detection result; and
and the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output voltage from being overvoltage.
In the charger circuit of the present invention, the charger circuit further comprises:
the overcurrent protection module is used for detecting the output current of the isolation output module and controlling the voltage conversion module through the direct current control module according to the current detection result; and
and the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output current from overflowing.
In the charger circuit of the present invention, the charger circuit further comprises:
and the MCU control module is used for receiving detection signals of the overvoltage protection module and the overcurrent protection module and carrying out power factor correction operation on the input voltage through the PFC control module.
The utility model also provides a charger, it includes the casing and sets up charger circuit in the casing, wherein charger circuit includes:
the input module is used for leading in input voltage;
the input filtering module is used for carrying out filtering operation on the input voltage;
the input rectifying module is used for rectifying the input voltage after the filtering operation;
the power factor correction module is used for carrying out power factor correction operation on the input voltage after rectification operation;
the voltage conversion module is used for converting the input voltage into the output voltage of the set voltage;
the output rectifying and filtering module is used for carrying out rectifying and filtering operation on the output voltage; and
and the isolation output module is used for outputting the output voltage after the rectification filtering operation as the driving voltage of the charger.
In the charger of the present invention, the charger circuit further includes:
the overvoltage and undervoltage detection module is used for carrying out overvoltage and undervoltage detection on the input voltage and feeding back a detection result to the PFC control module; and
the PFC control module is respectively connected with the over-voltage and under-voltage detection module and the power factor correction module and is used for carrying out power factor correction operation on the input voltage according to the detection result of the over-voltage and under-voltage detection.
In the charger of the present invention, the charger circuit further comprises:
the overvoltage protection module is used for detecting the output voltage of the isolation output module and controlling the voltage conversion module through the direct current control module according to the voltage detection result; and
and the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output voltage from being overvoltage.
In the charger of the present invention, the charger circuit further includes:
and the MCU control module is used for receiving detection signals of the overvoltage protection module and the overcurrent protection module and carrying out power factor correction operation on the input voltage through the PFC control module.
The utility model discloses compare in prior art, its beneficial effect does: the utility model provides a charger circuit and charger, this charger circuit use power factor correction module to detect input voltage and output voltage to carry out the corrective operation to input voltage based on the testing result, guaranteed output voltage's stability, avoided output voltage's fluctuation, effectively solved the technical problem of the voltage fluctuation easy damage battery of current charger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of a charger circuit according to the present invention;
fig. 2 is a schematic structural diagram of the filtering module, the input rectifying module, the power factor correction module and the PFC control module according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of the overvoltage/undervoltage detection module according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of the dc control module, the voltage conversion module, the output rectifying and filtering module, and the isolation output module according to the embodiment of the charger circuit of the present invention;
fig. 5 is a schematic structural diagram of an overvoltage protection module according to an embodiment of the charger circuit of the present invention;
fig. 6 is a schematic structural diagram of an overcurrent protection module according to an embodiment of the charger circuit of the present invention;
fig. 7 is a schematic structural diagram of the MCU control module according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the directional terms, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", refer to the orientation of the drawings, and the directional terms are used for illustration and understanding, but not for limiting the present invention.
The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a charger circuit according to the present invention. The charger circuit 10 of the present embodiment includes an input module 11, an input filter module 12, an input rectifier module 13, a power factor correction module 14, a voltage conversion module 15, an output rectifier filter module 16, an isolation output module 17, an over-voltage and under-voltage detection module 18, a PFC control module 19, an over-voltage protection module 20, an over-current protection module 21, a dc control module 22, and an MCU control module 23.
The input module 11 is used for introducing an input voltage; the input filtering module 12 is used for performing filtering operation on the input voltage; the input rectifying module 13 is configured to perform a rectifying operation on the filtered input voltage; the power factor correction module 14 is configured to perform a power factor correction operation on the input voltage after the rectification operation; the voltage conversion module 15 is used for converting an input voltage into an output voltage of a set voltage; the output rectifying and filtering module 16 is used for performing rectifying and filtering operation on the output voltage; the isolation output module 17 is configured to output the output voltage after the rectifying and filtering operation as a driving voltage of the charger; the overvoltage and undervoltage detection module 18 is used for performing overvoltage and undervoltage detection on the input voltage and feeding back a detection result to the PFC control module; the PFC control module 19 is respectively connected to the overvoltage/undervoltage detection module and the power factor correction module, and is configured to perform a power factor correction operation on the input voltage according to a detection result of the overvoltage/undervoltage detection; the overvoltage protection module 20 is used for detecting the output voltage of the isolation output module and controlling the voltage conversion module through the direct current control module according to the voltage detection result; the overcurrent protection module 21 is configured to detect an output current of the isolation output module, and control the voltage conversion module through the dc control module according to a current detection result; the dc control module 22 is configured to control an output voltage of the voltage conversion module to prevent an overvoltage of the output voltage or an overcurrent of the output voltage; the MCU control module 23 is configured to receive detection signals of the overvoltage protection module and the overcurrent protection module, and perform power factor correction operation on the input voltage through the PFC control module.
Next, a specific operation principle of the charger circuit of the charger according to the present invention will be described with reference to the specific circuit diagram of the charger circuit of the charger. Referring to fig. 2-7, fig. 2 is a schematic structural diagram of a filtering module, an input rectifying module, a power factor correction module and a PFC control module according to an embodiment of the charger circuit of the present invention; fig. 3 is a schematic structural diagram of the overvoltage/undervoltage detection module according to the embodiment of the present invention; fig. 4 is a schematic structural diagram of the dc control module, the voltage conversion module, the output rectifying and filtering module, and the isolation output module according to the embodiment of the charger circuit of the present invention;
fig. 5 is a schematic structural diagram of an overvoltage protection module according to an embodiment of the charger circuit of the present invention; fig. 6 is a schematic structural diagram of an overcurrent protection module according to an embodiment of the charger circuit of the present invention; fig. 7 is a schematic structural diagram of the MCU control module according to the embodiment of the present invention.
When the charger circuit of the utility model is used, the input voltage is input from the L pin and the N-pin of the input module 11; then, the input voltage is filtered by the capacitor and the inductor arranged in the filtering module 12; the input rectifying module 13 then continues the rectifying operation of the filtered input voltage through the rectifier bridge.
The power factor correction module 14 performs a power factor correction operation on the input voltage after the rectification operation based on an instruction of the PFC control module 19. Here, the overvoltage/undervoltage detection module 18 performs overvoltage/undervoltage detection on the input voltage through the pin NN and the pin LL, and transmits a detection result to the PFC control module 19 through the pin PFC, so that the PFC control module 19 can perform power factor correction operation on the input voltage according to the detection result of the overvoltage/undervoltage detection.
The output voltage of the power factor correction module 14 is input to the voltage conversion module 15 through the pin PFC 1. The voltage conversion module 15 converts the input voltage into an output voltage of a set voltage under the control of the dc control module 22. The DC control module 22 can receive a voltage detection signal of the overvoltage protection module 20 and a current detection signal of the overcurrent protection module 21, so as to control the output voltage of the voltage conversion module 15, and the DC control module 22 can receive a signal of the overvoltage/undervoltage detection module 18 through the pin DC/DC-CL, so as to control the output voltage of the voltage conversion module 15.
Then the output rectifying and filtering module 16 performs rectifying and filtering operation on the output voltage of the voltage conversion module 15; the isolation output module 17 is configured to output the output voltage after the rectifying and filtering operation as a driving voltage of the charger.
The overvoltage protection module 20 detects the output voltage of the isolation output module, and controls the voltage conversion module through the direct current control module according to the voltage detection result; the overcurrent protection module 21 detects the output current of the isolation output module, and controls the voltage conversion module through the dc control module according to the current detection result.
In addition, the charger circuit of the embodiment may further include an MCU control module 23, where the MCU control module 23 may receive the detection signals of the overvoltage protection module 20 and the overcurrent protection module 21 through a communication pin such as 485_rx through 485 receive pin, and then may send an instruction to the PFC control module through a communication pin such as 485 transmit pin 485_tx, so as to control the PFC control module 19 to perform the power factor correction operation on the input voltage after the rectifying operation by the power factor correction module 14.
The utility model also provides a charger, this charger include the casing and set up the charger circuit in the casing, and this charger circuit includes input module, input filter module, input rectifier module, power factor correction module, voltage conversion module, output rectifier filter module, keeps apart output module, crosses undervoltage detection module, PFC control module, overvoltage protection module, overcurrent protection module, direct current control module and MCU control module.
The input module is used for leading in input voltage; the input filtering module is used for carrying out filtering operation on the input voltage; the input rectification module is used for carrying out rectification operation on the input voltage after the filtering operation; the power factor correction module is used for carrying out power factor correction operation on the input voltage after rectification operation; the voltage conversion module is used for converting the input voltage into the output voltage of the set voltage; the output rectifying and filtering module is used for carrying out rectifying and filtering operation on the output voltage; the isolation output module is used for outputting the output voltage after the rectification filtering operation as the driving voltage of the charger; the overvoltage and undervoltage detection module is used for performing overvoltage and undervoltage detection on the input voltage and feeding back a detection result to the PFC control module; the PFC control module is respectively connected with the over-voltage and under-voltage detection module and the power factor correction module and is used for carrying out power factor correction operation on the input voltage according to the detection result of the over-voltage and under-voltage detection; the overvoltage protection module is used for detecting the output voltage of the isolation output module and controlling the voltage conversion module through the direct current control module according to the voltage detection result; the overcurrent protection module is used for detecting the output current of the isolation output module and controlling the voltage conversion module through the direct current control module according to the current detection result; the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output voltage from being over-voltage or current from being over-current; the MCU control module is used for receiving detection signals of the overvoltage protection module and the overcurrent protection module and performing power factor correction operation on input voltage through the PFC control module.
The specific operating principle of the charger of this embodiment is the same as or similar to that of the charger circuit described above, and please refer to the detailed description of the charger circuit in this embodiment.
The utility model discloses a charger and corresponding charger circuit have realized the feedback control to input voltage through crossing under-voltage detection module, realized the feedback control to output voltage through overvoltage protection module and overcurrent protection module, and further carry out accurate control to input voltage in the power factor correction module with output voltage's detection feedback through MCU control module, charger circuit output voltage's stability has been improved, output voltage's fluctuation has been avoided, the technical problem of the voltage fluctuation of effectively having solved current charger is fragile battery easily.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (10)
1. A charger circuit, comprising:
the input module is used for leading in input voltage;
the input filtering module is used for carrying out filtering operation on the input voltage;
the input rectifying module is used for rectifying the input voltage after the filtering operation;
the power factor correction module is used for carrying out power factor correction operation on the input voltage after rectification operation;
the voltage conversion module is used for converting the input voltage into the output voltage of the set voltage;
the output rectifying and filtering module is used for carrying out rectifying and filtering operation on the output voltage; and
and the isolation output module is used for outputting the output voltage after the rectification filtering operation as the driving voltage of the charger.
2. The charger circuit of claim 1, further comprising:
the overvoltage and undervoltage detection module is used for carrying out overvoltage and undervoltage detection on the input voltage and feeding back a detection result to the PFC control module; and
the PFC control module is respectively connected with the over-voltage and under-voltage detection module and the power factor correction module and is used for carrying out power factor correction operation on the input voltage according to the detection result of the over-voltage and under-voltage detection.
3. The charger circuit of claim 2, further comprising:
the overvoltage protection module is used for detecting the output voltage of the isolation output module and controlling the voltage conversion module through the direct current control module according to a voltage detection result; and
and the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output voltage from being overvoltage.
4. The charger circuit of claim 3, further comprising:
the overcurrent protection module is used for detecting the output current of the isolation output module and controlling the voltage conversion module through the direct current control module according to the current detection result; and
and the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output current from overflowing.
5. The charger circuit of claim 4, further comprising:
and the MCU control module is used for receiving detection signals of the overvoltage protection module and the overcurrent protection module and carrying out power factor correction operation on the input voltage through the PFC control module.
6. A charger comprising a housing and a charger circuit disposed within the housing, the charger circuit comprising:
the input module is used for leading in input voltage;
the input filtering module is used for carrying out filtering operation on the input voltage;
the input rectifying module is used for rectifying the input voltage after the filtering operation;
the power factor correction module is used for carrying out power factor correction operation on the input voltage after rectification operation;
the voltage conversion module is used for converting the input voltage into the output voltage of the set voltage;
the output rectifying and filtering module is used for carrying out rectifying and filtering operation on the output voltage; and
and the isolation output module is used for outputting the output voltage after the rectification filtering operation as the driving voltage of the charger.
7. The charger of claim 6, wherein the charger circuit further comprises:
the overvoltage and undervoltage detection module is used for carrying out overvoltage and undervoltage detection on the input voltage and feeding back a detection result to the PFC control module; and
the PFC control module is respectively connected with the over-voltage and under-voltage detection module and the power factor correction module and is used for carrying out power factor correction operation on the input voltage according to the detection result of the over-voltage and under-voltage detection.
8. The charger of claim 7, wherein the charger circuit further comprises:
the overvoltage protection module is used for detecting the output voltage of the isolation output module and controlling the voltage conversion module through the direct current control module according to the voltage detection result; and
and the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output voltage from being overvoltage.
9. The charger of claim 8, wherein the charger circuit further comprises:
the overcurrent protection module is used for detecting the output current of the isolation output module and controlling the voltage conversion module through the direct current control module according to the current detection result; and
and the direct current control module is used for controlling the output voltage of the voltage conversion module so as to prevent the output current from overflowing.
10. The charger of claim 9, wherein the charger circuit further comprises:
and the MCU control module is used for receiving detection signals of the overvoltage protection module and the overcurrent protection module and carrying out power factor correction operation on the input voltage through the PFC control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220863716.4U CN218124331U (en) | 2022-04-14 | 2022-04-14 | Charger circuit and charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220863716.4U CN218124331U (en) | 2022-04-14 | 2022-04-14 | Charger circuit and charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218124331U true CN218124331U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220863716.4U Active CN218124331U (en) | 2022-04-14 | 2022-04-14 | Charger circuit and charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218124331U (en) |
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2022
- 2022-04-14 CN CN202220863716.4U patent/CN218124331U/en active Active
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