CN213342017U - Multifunctional power management chip and power system - Google Patents
Multifunctional power management chip and power system Download PDFInfo
- Publication number
- CN213342017U CN213342017U CN202021334668.7U CN202021334668U CN213342017U CN 213342017 U CN213342017 U CN 213342017U CN 202021334668 U CN202021334668 U CN 202021334668U CN 213342017 U CN213342017 U CN 213342017U
- Authority
- CN
- China
- Prior art keywords
- module
- secondary side
- control circuit
- power supply
- primary side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model provides a multi-functional power management chip and electrical power generating system. This multi-functional power management chip includes: the primary side control circuit is used for controlling a primary side circuit of the power supply; the secondary side control circuit is used for controlling a secondary side circuit of the power supply; and the original secondary side isolation coupler is connected between the primary side control circuit and the secondary side control circuit and is used for isolating and coupling the primary side control circuit and the secondary side control circuit. The multifunctional power management chip integrates the power control management functions in various aspects, and can simultaneously realize the performance improvement in various aspects such as high power density, constant voltage/constant current loop control, charging protocol identification and control and the like.
Description
Technical Field
The utility model relates to a circuit field, more specifically relates to a highly integrated multi-functional power management chip and applied this power management chip's electrical power generating system.
Background
As mobile devices such as mobile phones, tablet computers, and personal notebook computers have increased in functionality, the capacity of batteries powering these mobile devices has also increased dramatically. However, charging large capacity batteries is still physically limited by the maximum current that can be tolerated by the USB interface. Cell phones and other mobile devices typically intelligently negotiate with the charger to use higher voltages for charging. The charging voltage is switched from the traditional 5V voltage value to other specific voltage values such as 9V, 12V and even 20V. This has also led to the emergence of fast charging techniques such as QC fast charging and PD fast charging.
With market demand and the creation of a wide variety of solutions, a number of different fast charging protocols have emerged. Accordingly, there is a need for a highly integrated multi-functional power management chip that is capable of integrating multiple power control management functions. At present, for example, for a power supply with an output power within 100W, power management chip schemes provided by various chip manufacturers basically design three control chips which are respectively and independently used for primary side Pulse Width Modulation (PWM) control, secondary side synchronous rectification control and protocol control. How to integrate these three control chips and additional partial circuits into one control chip to realize miniaturization, low cost and high efficiency of the charger becomes a concern for power management chip manufacturers.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a highly integrated multifunctional power management chip and a power system using the same.
According to the utility model discloses a multi-functional power management chip includes: the primary side control circuit is used for controlling a primary side circuit of the power supply; the secondary side control circuit is used for controlling a secondary side circuit of the power supply; and the original secondary side isolation coupler is connected between the primary side control circuit and the secondary side control circuit and is used for isolating and coupling the primary side control circuit and the secondary side control circuit.
In one embodiment, the primary and secondary side isolation couplers are high voltage isolation coupling capacitors.
In one embodiment, the primary and secondary side isolation couplers are realized by a differential coupling structure formed by two paths of high-voltage isolation coupling capacitors.
In one embodiment, the secondary side control circuit comprises a protocol control module, a constant voltage loop control module, a constant current loop control module, a secondary side coding and decoding module and a secondary side transceiver module, wherein: the protocol control module is used for allowing the power supply to communicate with the terminal equipment to be charged so as to realize different voltage or current outputs and protection control of the power supply according to the charging protocol requirements of the terminal equipment to be charged; the constant voltage loop control module is used for controlling the power supply to realize constant voltage output according to the requirement of the charging protocol; the constant current loop control module is used for controlling the power supply to realize constant current output according to the requirement of the charging protocol; the secondary side coding and decoding module is used for coding a signal from the terminal equipment to be charged according to the charging protocol requirement and transmitting the coded signal to the secondary side transceiver module; and the secondary side transceiver module is used for receiving the coded signals and transmitting the coded signals to the primary side control circuit through the primary side isolation coupler and the secondary side isolation coupler.
In one embodiment, the secondary side control circuit further comprises: the synchronous rectification driving module is used for driving and controlling the on or off of a synchronous rectification power switch tube in a secondary side circuit of the power supply; and the synchronous rectification control module is used for realizing control and protection of the synchronous rectification power switching tube.
In one embodiment, the secondary side control circuit further comprises: and the output power switch tube driving module is used for driving and controlling the on/off of an output power switch tube in a secondary side circuit of the power supply according to the requirement of the charging protocol.
In one embodiment, when the charging protocol is a USB PD TYPE-C protocol, the output power switch driving module drives and controls the output power switch to be turned on.
In one embodiment, the secondary side control circuit further comprises: the secondary UVLO/LDO module is used for realizing low-voltage locking and linear voltage stabilization of a power supply circuit of the secondary control circuit; and the secondary side logic control module is used for carrying out internal logic control on the secondary side control circuit.
In one embodiment, the primary side control circuit includes a primary side transceiver module, a primary side codec module, a PWM signal generator module, and a primary side power switch tube driving module, wherein: the primary side transceiver module is used for receiving the coded signals transmitted from the secondary side transceiver module through the original secondary side isolation coupler and transmitting the coded signals to the primary side coding and decoding module; the primary side coding and decoding module is used for receiving the coded signals, decoding the coded signals and transmitting the decoded signals to the PWM signal generator module; the PWM signal generator module is used for generating a PWM signal based on the decoded signal and transmitting the PWM signal to the primary side power switching tube driving module; and the primary side power switch tube driving module is used for driving and controlling the on/off of a power switch tube in a primary side circuit of the power supply based on the PWM signal.
In one embodiment, the primary side control circuit further comprises: and the current detection module is used for realizing loop control on the primary side power of the power supply through a detection resistor connected to the primary side ground of the power supply.
In one embodiment, the primary side control circuit further comprises: the high-voltage starting module is used for providing charging current for the power supply capacitor in the starting process of the multifunctional power supply management chip; the primary UVLO/LDO module is used for realizing low voltage locking and linear voltage stabilization of a power supply circuit of the primary control circuit; the reference voltage module is used for providing internal reference voltage of the primary side control circuit; and the logic control module is used for carrying out internal logic control on the primary side control circuit.
According to the utility model discloses a power supply system, including power and foretell multifunctional power management chip.
In one embodiment, the power supply in the power supply system is a flyback switching power supply.
According to the utility model discloses a many-sided power control management function has been integrated to the multi-functional power management chip, can realize many-sided performance promotion such as high power density, constant voltage/constant current loop control, charge agreement discernment and control simultaneously.
Drawings
The invention may be better understood from the following description of particular embodiments thereof taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a pin schematic diagram of a highly integrated multifunctional power management chip according to an embodiment of the invention;
fig. 2 shows a schematic diagram of an exemplary flyback switching power supply system employing a highly integrated multifunctional power management chip according to an embodiment of the present invention;
FIG. 3 illustrates an internal schematic diagram of a highly integrated multifunctional power management chip according to an embodiment of the present invention;
fig. 4 shows an internal structure diagram of a highly integrated multifunctional power management chip according to another embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below with reference to the accompanying drawings. Example implementations can be embodied in many forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art. In the drawings, the size of regions and components may be exaggerated for clarity. Further, in the drawings, the same reference numerals denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the primary technical ideas of the invention.
The utility model provides a highly integrated multifunctional power management chip who integrates many-sided power control management function. The multifunctional power management chip can integrate functions of at least the following aspects: primary side PWM control, secondary side synchronous rectification control, constant voltage/constant current loop control, power transmission (PD) protocol control (also referred to as charging protocol control in the text) and primary and secondary side isolation, thereby meeting the requirements of ordinary charging, quick charging, miniaturization, high integration and the like of PD power supply, and achieving the purposes of saving cost and improving system efficiency.
Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 shows a pin diagram of a highly integrated multifunction power management chip according to an embodiment of the present invention.
As shown in fig. 1, an exemplary multi-functional power management chip according to the present invention includes 20 pins. A brief description of these pins is given in table 1 below. A detailed description of these pins will be described in connection with fig. 2.
| Pin numbering | Pin name | Brief description of the function |
| 1 | HV | Primary side high- |
| 2 | VDD | Primary side |
| 3 | GateP | Primary side power switch |
| 4 | CS | Current detection pin of primary power switch tube |
| 5 | GND_P | Primary side |
| 6 | ISN | Current detection |
| 7 | GND_S | Secondary side chip grounding pin (Current detection positive pin) |
| 8 | RT | Over-temperature detection and over-temperature |
| 9 | VFB | Voltage |
| 10 | IFB | Current loop compensation pin |
| 11 | DP | USB PD TYPE-C DP pin |
| 12 | DN | USB PD TYPE- |
| 13 | CC2 | USB PD TYPE- |
| 14 | CC1 | USB PD TYPE-C CC1 pin |
| 15 | N_Gate | Output power switch tube driving pin |
| 16 | DIS | Output |
| 17 | VIN | Secondary |
| 18 | SR_GND | Synchronous |
| 19 | VD | Synchronous rectification |
| 20 | SR_Gate | Synchronous rectification power switch tube driving pin |
TABLE 1
The multifunctional power management chip as described above can be applied to the flyback switching power supply system 200 as shown in fig. 2.
As shown in fig. 2, the multifunctional power management chip 210 is connected to the flyback switching power supply 220 to implement primary PWM control, secondary synchronous rectification control, constant voltage/constant current loop control, PD protocol control, primary and secondary isolation, and the like of the flyback switching power supply 220. It should be noted that the functional, pin and structural configuration of the multifunctional power management chip according to the embodiment of the present invention are described herein only by taking the flyback switching power supply as an example, but the multifunctional power management chip according to the embodiment of the present invention may also be applied to other types of power supplies, such as a half-bridge switching power supply, a full-bridge switching power supply, and the like. Only the pins and the structural configuration of the power management chip need to be adaptively adjusted for different types of power supplies.
In addition, fig. 2 also shows a connection configuration of the multifunctional power management chip 210 and the charging interface 230 of the USB PD TYPE-C TYPE when the flyback switching power supply 220 is connected to the charging interface 230 of the USB PD TYPE-C TYPE. Also, it should be noted that the function, pin and structure configuration of the multifunctional power management chip according to the embodiment of the present invention are described herein only by taking the USB PD TYPE-C TYPE charging interface as an example, but the power system to which the multifunctional power management chip according to the embodiment of the present invention is applied may be connected with other TYPEs of charging interfaces (e.g., USB PD TYPE-a TYPE charging interface, etc.) for charging. The pin and fabric configuration of the power management chip may need to be adaptively adjusted for different types of charging protocol interfaces.
The connection configuration and specific functions of the respective pins of the multifunctional power management chip according to an embodiment of the present invention will be described in detail below with reference to fig. 2.
HV-primary side high voltage start pin: the pin is connected to an input alternating current or direct current voltage through a starting resistor R1 and is used for providing a chip starting current in the chip starting process, and a power supply capacitor C1 connected with the VDD pin is charged through an internal circuit of the chip, so that the starting working voltage of the chip is provided.
VDD — primary side supply pin: the power supply process of the pin is divided into two processes. One is that in the starting process of the chip, a VDD pin obtains starting current from a HV pin through an internal circuit to supply power to the chip; and the other is that after the chip is started, the VDD pin is connected with an auxiliary winding L1 through a diode D1 and a power supply capacitor C1 to supply power to the auxiliary winding L1.
GateP-Primary side Power switch tube drive Pin: the pin is connected to the gate of the power switch M1, and is used for driving and controlling the power switch M1 to be turned on or off.
CS-Primary side Power switch tube Current detection Pin: the pin is connected to a primary ground through a detection resistor R2 and is used for detecting the current flowing through the power switch tube M1 when the primary power switch tube M1 is conducted.
GND _ P-primary side chip ground pin, which is connected to the primary side ground as the primary side ground connection pin of the chip.
ISN — current detection negative pin: the pin is connected to a current detection resistor R3 for realizing the constant current control of the chip.
GND _ S-secondary chip ground pin: the pin is connected to a secondary ground, and is also a positive pin for secondary current detection as a secondary ground of the chip.
RT-over temperature detection and over temperature protection pin: the pin passes through a negative temperature coefficient thermistor RNTCAnd the temperature detection device is connected to a secondary side ground and used for realizing temperature detection of equipment such as a charger and the like and performing over-temperature protection.
VFB-voltage loop compensation pin: the pin is connected to the secondary side ground through a compensation capacitor C3 and a compensation resistor R4, and the compensation function of the voltage loop is realized.
IFB-current loop compensation pin: the pin is connected to the secondary side ground through a compensation capacitor C4 and a compensation resistor R5, and the compensation function of the current loop is realized.
DP-USB PD TYPE-C DP pin: the pin is connected with a positive data signal (DP) pin of the USB PD TYPE-C charging interface.
DN-USB PD TYPE-C DN pin: the pin is connected with a data negative signal (DN) pin of the USB PD TYPE-C charging interface.
CC2-USB PD TYPE-C CC2 pin: the pin is connected with a configuration channel 2(CC2) pin of the USB PD TYPE-C charging interface.
CC1-USB PD TYPE-C CC1 pin: the pin is connected with a configuration channel 1(CC1) pin of the USB PD TYPE-C charging interface.
N-gate-output power switch tube drive pin: the pin is connected to the gate of the output power switch M2, and is used for driving the output power switch M2 to turn on or off. For example, when a terminal device to be charged adopting a PD protocol (for example, a charging protocol of USB PD TYPE-C TYPE) is connected, if the charging current exceeds 3A, the output power switch M2 needs to be driven and controlled to be turned on to charge the device to be charged adopting the PD protocol.
DIS-output capacitor discharge pin: the pin is connected to the source of the output power switch M2, i.e., the output voltage terminal of the flyback switching power supply 220, through a resistor R6. Once the USB data line is pulled out, the circuit at the rear stage of the output power switch M2 can be discharged immediately.
VIN-secondary supply pin: the pin is connected to the drain of an output power switch tube M2 through a current limiting resistor R7, the output voltage of the power supply is detected, and different output voltage control is realized.
SR _ GND — synchronous rectified ground pin: this pin is the ground pin of the synchronous rectification control circuit in the flyback switching power supply 220.
VD-synchronous rectification voltage detection pin: this pin is connected to the secondary winding of the transformer T through a resistor R8 for detecting the signal on the secondary winding.
SR _ Gate-synchronous rectification power switch tube driving pin: the pin is connected to the gate of the synchronous rectification power switch tube M3 through a resistor R9, and is used for driving and controlling the on/off of the synchronous rectification power switch tube M3.
The function of each pin of a highly integrated multifunctional power management chip integrating multifaceted management functions according to the embodiment of the present invention is described in detail above with reference to fig. 2. As described above, the multifunctional power management chip may, for example, integrate at least the following functions: primary side PWM control, secondary side synchronous rectification control, constant voltage/constant current loop control, power transmission (PD) protocol control and primary and secondary side isolation. The internal structure of the exemplary multifunction power management chip shown in FIG. 2 is described below in conjunction with FIG. 3.
Fig. 3 shows an internal structure diagram of a highly integrated multifunctional power management chip according to an embodiment of the present invention. As shown in fig. 3, the power management chip mainly includes a primary side control circuit 310, a secondary side control circuit 320, and a primary and secondary side isolation coupler 330. The functions of the various modules in the power management chip will be detailed in these three respects.
The primary side control circuit 310 may include a HV (high voltage) start-up module, a primary side UVLO/LDO (low voltage lockout/linear regulator) module, a reference voltage module, a primary side power switch tube driver module, a current detection module, a PWM signal generator module, a primary side transceiver module, a primary side codec module, a primary side logic control module, a protection control module, and so on.
The HV starting module is used for providing charging current for the power supply capacitor in the chip starting process; the primary side UVLO/LDO module is used for realizing the low voltage locking and linear voltage stabilizing functions of the power supply circuit of the primary side control circuit 310; the reference voltage module is used for providing an internal reference voltage of the primary side control circuit 310; the primary side power switching tube driving module is used for driving and controlling the connection or disconnection of a primary side power switching tube in the flyback switching power supply; the current detection module is used for realizing loop control on the primary power of the power supply through a detection resistor connected to the primary ground; the PWM signal generator module is used for receiving signals from the primary side transceiver module and generating PWM signals to control the on or off of the primary side power switching tube; the primary side transceiver module is used for receiving different coding control signals transmitted from the secondary side through the high-voltage isolation coupling capacitor CY; the primary side encoding and decoding module is used for receiving the signals transmitted from the primary side transceiver module, decoding the signals and providing the decoded signals to the PWM signal generator module; the primary side logic control module is used for carrying out internal logic control on the primary side control circuit 310; and the protection control module is used for protecting the chip and avoiding the chip damage caused by the abnormal fault of the chip. According to the embodiment of the present invention, the high voltage isolation coupling capacitor CY is integrated in the power management chip as the primary and secondary isolation coupler 330 for primary and secondary isolation.
It should be noted that the above functional blocks in the primary side control circuit 310 are only exemplary, and the corresponding functional blocks may be increased or decreased adaptively according to the application environment. For example, when the power management chip is applied to different types of power supplies, the functional blocks in the primary control circuit 310 can be adaptively adjusted to suit the specific type of power supply.
The secondary control circuit 320 may include a synchronous rectification control module, a synchronous rectification driving module, a secondary UVLO/LDO module, a protocol control module, a constant voltage loop control module, a constant current loop control module, a secondary logic control module, a secondary codec module, a secondary transceiver module, an output power switch tube driving module, and so on.
The synchronous rectification control module is used for controlling and protecting a synchronous rectification power switch tube in the flyback switching power supply; the synchronous rectification driving module is used for driving and controlling the on or off of a synchronous rectification power switch tube in the flyback switching power supply; the secondary UVLO/LDO module is used for realizing the functions of low voltage locking and linear voltage stabilization of a power supply circuit of the secondary control circuit 320; the protocol control module is used for realizing the communication between the power supply system and the terminal equipment to be charged so as to realize different voltage and current output and protection control of the power supply system according to the charging protocol requirement of the terminal equipment to be charged; the constant voltage loop control module is used for realizing a constant voltage output control function and realizing different constant voltage outputs according to the requirements of a charging protocol; the constant current loop control module is used for realizing a constant current output control function and realizing different constant current outputs according to the requirements of a charging protocol; the secondary side logic control module is used for carrying out internal logic control on the secondary side control circuit 320; the secondary side coding and decoding module is used for coding signals from the terminal equipment to be charged in different modes according to the charging protocol requirements of the terminal equipment to be charged and outputting the coded signals to the primary side transceiver module; the secondary side transceiver module is used for receiving the signals transmitted from the secondary side coding and decoding module and transmitting the signals to the primary side transceiver module through the high-voltage isolation coupling capacitor CY; and the output power switch tube driving module is used for driving and controlling the output power switch tube to be switched on or switched off, for example, when the output power switch tube driving module is connected to a terminal device to be charged meeting the USB PD TYPE-C protocol, the output power switch tube driving module is used for driving and controlling the output power switch tube to be switched on.
It should be noted that the above-mentioned functional blocks in the secondary side control circuit 320 are merely exemplary, and the corresponding functional blocks may be adaptively increased or decreased according to an application environment. For example, when the power management chip is applied to different types of power supplies or connected to different types of charging interfaces, the functional modules in the secondary control circuit 320 may be adaptively adjusted to adapt to the specific type of power supply and charging interface.
The multifunctional power management chip shown in fig. 3 can integrate the primary control circuit and the secondary control circuit together, so as to realize a highly integrated power management mechanism integrating multiple functions. In the power management chip, a primary side control circuit and a secondary side control circuit are in isolation coupling through a high-voltage isolation coupling capacitor.
In addition, in order to consider the reliability of signal transmission, the isolation coupling between the primary side control circuit and the secondary side control circuit can be realized by a differential coupling structure formed by two paths of high-voltage isolation coupling capacitors. Fig. 4 shows an internal structure diagram of a highly integrated multifunctional power management chip according to another embodiment of the present invention. As shown in fig. 4, the primary control circuit 410 and the secondary control circuit 420 are isolated and coupled by a differential coupling structure formed by two high-voltage isolation coupling capacitors CYP and CYS. The other structural configuration of the multifunctional power management chip shown in fig. 4 is the same as that of the multifunctional power management chip shown in fig. 3, except that a differential coupling structure composed of two high-voltage isolation coupling capacitors is adopted as the primary and secondary side isolation coupler 430 to be integrated in the power management chip, and therefore, repeated description is not performed.
The detailed structural examples of the high-integration multifunctional power management chip and the power system using the same according to the embodiments of the present invention are described in detail above with reference to the accompanying drawings. According to the utility model discloses a many-sided power control management function has been integrated to the multi-functional power management chip, can realize many-sided performance promotion such as high power density, constant voltage/constant current loop control, charge agreement discernment and control simultaneously to can satisfy ordinary charging, fill soon the demand in the aspect such as miniaturized, the high integration of charging, PD power, reach the purpose of saving the cost and improving system efficiency.
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. 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.
Claims (13)
1. A multifunctional power management chip, comprising:
the primary side control circuit is used for controlling a primary side circuit of the power supply;
the secondary side control circuit is used for controlling a secondary side circuit of the power supply; and
and the original secondary side isolation coupler is connected between the primary side control circuit and the secondary side control circuit and is used for isolating and coupling the primary side control circuit and the secondary side control circuit.
2. The multifunctional power management chip of claim 1 wherein the primary and secondary side isolation couplers are high voltage isolation coupling capacitors.
3. The multifunctional power management chip of claim 1, wherein the primary and secondary side isolation couplers are implemented by a differential coupling structure consisting of two high-voltage isolation coupling capacitors.
4. The multifunctional power management chip of claim 1, wherein the secondary side control circuit comprises a protocol control module, a constant voltage loop control module, a constant current loop control module, a secondary side codec module, and a secondary side transceiver module, wherein:
the protocol control module is used for allowing the power supply to realize communication with the terminal equipment to be charged so as to realize different voltage or current output and protection control of the power supply according to the charging protocol requirement of the terminal equipment to be charged;
the constant voltage loop control module is used for controlling the power supply to realize constant voltage output according to the requirement of the charging protocol;
the constant current loop control module is used for controlling the power supply to realize constant current output according to the requirement of the charging protocol;
the secondary side coding and decoding module is used for coding a signal from the terminal equipment to be charged according to the charging protocol requirement and transmitting the coded signal to the secondary side transceiver module; and is
And the secondary side transceiver module is used for receiving the coded signal and transmitting the coded signal to the primary side control circuit through the primary and secondary side isolation coupler.
5. The multifunctional power management chip of claim 4, wherein the secondary side control circuit further comprises:
the synchronous rectification driving module is used for driving and controlling the on or off of a synchronous rectification power switch tube in the secondary side circuit of the power supply; and
and the synchronous rectification control module is used for realizing control and protection of the synchronous rectification power switching tube.
6. The multifunctional power management chip of claim 4 or 5, wherein the secondary side control circuit further comprises:
and the output power switch tube driving module is used for driving and controlling the on/off of an output power switch tube in the secondary side circuit of the power supply according to the charging protocol requirement.
7. The multifunctional power management chip of claim 6, wherein when the charging protocol is a USB PD TYPE-C protocol, the output power switch driving module drives and controls the output power switch to be turned on.
8. The multifunctional power management chip of claim 4 or 5, wherein the secondary side control circuit further comprises:
the secondary UVLO/LDO module is used for realizing low-voltage locking and linear voltage stabilization of a power supply circuit of the secondary control circuit; and
and the secondary side logic control module is used for carrying out internal logic control on the secondary side control circuit.
9. The multifunctional power management chip of claim 4 or 5, wherein the primary side control circuit comprises a primary side transceiver module, a primary side codec module, a Pulse Width Modulation (PWM) signal generator module, and a primary side power switch tube driving module, wherein:
the primary side transceiver module is used for receiving the coded signals transmitted from the secondary side transceiver module through the primary side isolation coupler and the secondary side isolation coupler and transmitting the coded signals to the primary side coding and decoding module;
the primary side coding and decoding module is used for receiving the coded signals, decoding the coded signals and transmitting the decoded signals to the PWM signal generator module;
the PWM signal generator module is used for generating a PWM signal based on the decoded signal and transmitting the PWM signal to the primary side power switching tube driving module; and is
The primary side power switch tube driving module is used for driving and controlling the on/off of a power switch tube in the primary side circuit of the power supply based on the PWM signal.
10. The multifunctional power management chip of claim 9, wherein the primary control circuit further comprises:
and the current detection module is used for realizing loop control on the primary side power of the power supply through a detection resistor connected to the primary side ground of the power supply.
11. The multifunctional power management chip of claim 9, wherein the primary control circuit further comprises:
the high-voltage starting module is used for providing charging current for the power supply capacitor in the starting process of the multifunctional power supply management chip;
the primary UVLO/LDO module is used for realizing low voltage locking and linear voltage stabilization of a power supply circuit of the primary control circuit;
the reference voltage module is used for providing internal reference voltage of the primary side control circuit; and
and the logic control module is used for carrying out internal logic control on the primary side control circuit.
12. A power supply system comprising a power supply and the multifunctional power management chip of any one of claims 1 to 11.
13. The power supply system of claim 12, wherein the power supply is a flyback switching power supply.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021334668.7U CN213342017U (en) | 2020-07-09 | 2020-07-09 | Multifunctional power management chip and power system |
| TW109211455U TWM605416U (en) | 2020-07-09 | 2020-09-01 | Multi-functional power management IC and electric circuit system using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021334668.7U CN213342017U (en) | 2020-07-09 | 2020-07-09 | Multifunctional power management chip and power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213342017U true CN213342017U (en) | 2021-06-01 |
Family
ID=74670416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021334668.7U Active CN213342017U (en) | 2020-07-09 | 2020-07-09 | Multifunctional power management chip and power system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213342017U (en) |
| TW (1) | TWM605416U (en) |
-
2020
- 2020-07-09 CN CN202021334668.7U patent/CN213342017U/en active Active
- 2020-09-01 TW TW109211455U patent/TWM605416U/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TWM605416U (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI663823B (en) | Power supply device, AC adapter, AC charger, electronic device, and power supply system | |
| US6791853B2 (en) | Dual input AC/DC power converter having a programmable peripheral power hub module | |
| KR101992552B1 (en) | Power supply, AC adapter, AC charger, electronic equipment and power supply system | |
| US20140313794A1 (en) | Power delivery device and start-up method, ac adapter and electronic apparatus | |
| US20140313792A1 (en) | Power delivery device, ac adapter, and electronic apparatus | |
| CN107615633B (en) | Power supply device, AC adapter, AC charger, electronic apparatus, and power supply system | |
| US11799311B2 (en) | Current sharing for multi-output charging device | |
| KR20160149233A (en) | Power supply device, ac adapter, ac charger, electronic device, and power supply system | |
| KR20160148622A (en) | Power supply device, ac adapter, ac charger, electronic device, and power supply system | |
| CN112087015B (en) | Combination of battery pack and adapter | |
| JP6068151B2 (en) | Power supply device, AC adapter, electronic device, and power supply system | |
| CN213342017U (en) | Multifunctional power management chip and power system | |
| US7738270B2 (en) | Power supply device | |
| TW201442391A (en) | Multi-battery power supply system | |
| CN217883227U (en) | Switching power supply circuit and synchronous rectification chip thereof | |
| JP6111091B2 (en) | Power supply device, AC adapter, electronic device, and power supply system | |
| US10566831B2 (en) | Zero energy loss efficient power supply responsive to connection state and utilization device control | |
| CN218335382U (en) | Switch circuit, BMS system and electronic equipment | |
| CN109412428B (en) | Portable power supply device and power supply management method | |
| WO2021179295A1 (en) | Multi-functional charging apparatus and system | |
| WO2024067646A1 (en) | Switch power source circuit, power adapter, and charging system | |
| CN116418234A (en) | Power conversion control circuit and device, power adapter and charging control method | |
| CN117277819A (en) | Synchronous rectification module, power adapter and communication method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |