CN212012458U - Power supply equipment with superposed output power - Google Patents
Power supply equipment with superposed output power Download PDFInfo
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- CN212012458U CN212012458U CN202020050051.6U CN202020050051U CN212012458U CN 212012458 U CN212012458 U CN 212012458U CN 202020050051 U CN202020050051 U CN 202020050051U CN 212012458 U CN212012458 U CN 212012458U
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Abstract
The utility model provides a superimposed output's power supply unit, including input interface, with input interface connection's commercial power supply module, battery power module and the output interface group who is connected with commercial power supply module and battery power module respectively, still include in the power supply unit: the two-phase Buck chip comprises a first input end connected with the mains supply power supply module, a second input end connected with the battery power supply module, and a Buck chip output end connected with the output interface group; the two-phase Buck chip receives first output power of the mains supply power supply module and second output power of the battery power supply module from the first input end and the second input end respectively, and the first output power and the second output power are superposed and then transmitted to the output interface group so as to provide electric energy for a load connected with the output interface group. After adopting above-mentioned technical scheme, the user only needs to carry a equipment, can provide the electric energy to all load equipment extremely fast.
Description
Technical Field
The utility model relates to a power distribution field especially relates to a superimposed output's electrical power unit.
Background
With the rapid popularization of intelligent terminals, tablet computers and notebook computers, people have more and more dependence on the use of the equipment. When the device is used for a long time, the power of the device is exhausted, and the device cannot be used continuously. In consideration of the endurance bottleneck of the batteries of the devices, a user often carries the charger, the mobile power supply and the power adapter, the charger is connected with the mains supply to supply power to the devices through the power adapter, the charger is connected with the mains supply to supply power to the devices, the mobile power supply charges the devices, and the charger, the mobile power supply and the power adapter are respectively special, so that the size and the weight bring carrying trouble.
At present, a charging strategy used by the charger, the power adapter and the mobile power supply is to preferentially supply power to a load needing to be charged and then supply power to the built-in battery, the charger, the power adapter and the mobile power supply are in a time-sharing power supply state, the battery in the mobile power supply cannot bring a power multiplication effect, and if the charger is used, the maximum power which can be provided is the capacity of the charger. Therefore, the fast charging function of the fast charging charger, the power adapter or the mobile power supply is matched with the fast charging protocol supported by the load through the built-in protocol chip, and then the power is supplied to the load based on the fast charging protocol. Due to the limitation of the fast charging protocol, rapid fast charging cannot be realized.
Therefore, a new power supply device with superimposed output power is needed, which further improves the power supply and charging speed of the load on the basis of the original quick charging, and uses power supply resources in all aspects.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model aims to provide a superimposed output's power supply unit, the user only needs to carry an equipment, all can provide the electric energy very fast to all load devices.
The utility model discloses a power supply device with superposed output power, which comprises an input interface, a commercial power supply module and a battery power supply module which are connected with the input interface, and an output interface group which is respectively connected with the commercial power supply module and the battery power supply module,
the power supply equipment also comprises:
the two-phase Buck chip comprises a first input end connected with the mains supply power supply module, a second input end connected with the battery power supply module, and a Buck chip output end connected with the output interface group;
the two-phase Buck chip receives first output power of the mains supply power supply module and second output power of the battery power supply module from the first input end and the second input end respectively, and the first output power and the second output power are superposed and then transmitted to the output interface group so as to provide electric energy for a load connected with the output interface group.
Preferably, the output interface group comprises a first output interface and a second output interface;
the first output interface is connected with the output end of the Buck chip, and the second output interface is connected with the commercial power supply module and the battery power supply module;
when the input interface is connected with commercial power, the electric quantity of the battery power supply module is greater than or equal to a first electric quantity threshold value, and the power supply function of the battery power supply module is activated, first output power and second output power of the commercial power supply module and the battery power supply module are transmitted to the first output interface through the two-phase Buck chip;
when the input interface is connected with commercial power, and the electric quantity of the battery power supply module is lower than a first electric quantity threshold value or the power supply function of the battery power supply module is not activated, the commercial power supply module transmits first output power to the second output interface;
when the input interface is not connected with the mains supply and the electric quantity of the battery power supply module is larger than or equal to the second electric quantity threshold value, the battery power supply module transmits second output power to the second output interface.
Preferably, the output interface group further comprises a third output interface;
the third output interface is connected with the commercial power supply module and the battery power supply module;
when the input interface is connected with commercial power, and the electric quantity of the battery power supply module is lower than a first electric quantity threshold value or the power supply function of the battery power supply module is not activated, the commercial power supply module transmits first output power to the second output interface and the third output interface respectively;
when the input interface is not connected with the mains supply and the electric quantity of the battery power supply module is greater than or equal to the second electric quantity threshold value, the battery power supply module transmits second output power to the second output interface and the third output interface respectively.
Preferably, a double-input single-output switch is arranged between the commercial power supply module and the battery power supply module and between the second output interface and/or the third output interface;
the double-input single-output switch comprises a mains supply input end connected with the mains supply module, a battery input end connected with the battery supply module and a switch output end connected with the second output interface or the third output interface;
the double-input single-output switch selectively receives the energy supplied by the commercial power supply module and the battery power supply module and transmits the energy to the second output interface or the third output interface.
Preferably, the power supply device also comprises a control chip and an operation unit partially exposed to the shell of the power supply device;
the operation unit receives external operation and sends an operation instruction to the control chip;
the control chip is connected with the double-in single-out switch, and when an operation instruction is received, the control chip disables the double-in single-out switch, so that energy supplied by the commercial power supply module and the battery power supply module is independently transmitted to the two-phase Buck chip.
Preferably, the power supply device further comprises a protocol chip, and the protocol chip is connected with the output interface group, the commercial power supply module and the battery power supply module;
the protocol chip and the load are in handshake through the output interface group, and expected voltage and/or expected current are obtained from the load;
the protocol chip sends expected voltage and/or expected current to a control chip arranged in the power supply equipment, and the control chip controls the output voltage or the output current of the commercial power supply module and the battery power supply module.
Preferably, the control chip controls the commercial power supply module to output a first voltage and a first current;
the control chip calculates first output power according to the first voltage and the first current and compares the first output power with expected power of a load;
when the first output power is smaller than the expected power, the control chip activates the battery power supply module to complement the first output power;
when the first output power is larger than the expected power, the control chip controls the commercial power supply module to output part of the first output power to the battery power supply module.
Preferably, a switch element is connected between the commercial power supply module and the battery power supply module;
when the load is not connected to the output interface group, the switch element is controlled to be closed, so that the commercial power supply module supplies power to the battery power supply module;
when the load is connected to the output interface group, the switch element is controlled to be disconnected, so that the commercial power supply module and the battery power supply module respectively transmit electric energy to the power supply two-phase Buck chip and/or the output interface group.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. the power supply device integrating the charger, the mobile power supply and the power adapter saves the space required by carrying the device when a user goes out;
2. providing maximum power and fastest charging experience to a user's load;
3. a charging method for improving the efficiency and charging power of a power adapter is provided.
Drawings
Fig. 1 is a schematic diagram of a module structure of a power supply device according to a preferred embodiment of the present invention.
Detailed Description
The advantages of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module" and "component" may be used in a mixture.
Fig. 1 is a schematic structural diagram of a power supply device with superimposed output power according to a preferred embodiment of the present invention. In this embodiment, the power supply device includes an input interface, a commercial power supply module, a battery power supply module, and an output interface set, where the input interface may be externally connected to or integrated with an electrical connection line connected to a commercial power, such as a plug, a USB interface, and the input interface and the commercial power supply module transmit electric energy of the commercial power to the commercial power supply module through the input interface, and the commercial power supply module receives alternating current of the commercial power and converts the alternating current into direct current (such as output power of 30W, 20W, 50W, and the like). The battery power supply module is arranged in the power supply equipment and is used as a power supply path of the second path, the battery power supply module and the commercial power supply module are connected to the output interface group together, the output interface group can be externally connected with at least one load, such as an intelligent terminal, a tablet computer, a notebook computer and the like, and the output interface group receives electric energy of the commercial power supply module and the battery power supply module at the same time to transmit the electric energy to the load.
The commercial power supply module comprises a fuse, a filtering unit and a rectifying unit, wherein the fuse and the filtering unit are used for rectifying 220V and 50Hz alternating current of commercial power after filtering, for example, the alternating current is converted into direct current after full-bridge rectification, the commercial power supply module further comprises a switching tube and an isolation transformer, the isolation transformer is driven to transform in an active clamping flyback mode formed by the switching tube and the isolation transformer, low-voltage direct current which has undergone transformation is output from a secondary end of the transformer and is then output after filtering by the filtering unit.
The commercial power supply module can also be connected with a protocol chip, such as a protocol chip supporting BC1.2, QC2/3, USB PD protocol and the like, according to the handshake information with the load, the protocol IC can indirectly control the frequency and the duty ratio of the switching tube, and further adjust the transformer transformation, so as to improve or reduce the output voltage of the secondary end.
The battery power supply module comprises a battery, a (lithium) battery pack, a Buck-Boost circuit or a protocol chip, after the Buck-Boost circuit is connected with the battery, the energy supplied by the battery is output to the Buck-Boost circuit and then an output voltage higher than, lower than or equal to the voltage of the battery is output, and the output voltage is specifically regulated by handshake information of the protocol chip and a load. Thus, load reversal to battery charging may also be achieved, and likewise, the reversed input voltage may be higher, lower, or equal to the battery voltage.
The power supply equipment also comprises a two-phase Buck chip which comprises a first input end, a second input end and a Buck chip output end. The first input end is connected with the mains supply module to receive first output power output by the mains supply module, the second input end is connected with the battery power supply end to receive second output power output by the battery power supply end, and the Buck chip output end is connected with the output interface set to output electric energy to the output interface set. Through the property of the double-phase Buck chip, even if two output voltages of the first output power and the second output power are inconsistent, the first output power and the second output power are superposed and then have a load function through the output end of the Buck chip after being demodulated to the same output voltage through the control of the double-phase Buck chip. That is, when the utility power supply module can output 27W of first output power and the battery power supply module can output 40W of second output power, the total power output from the Buck chip output end will reach 67W, and thus, the load that lacks power can be charged with the maximum output power and the fastest charging efficiency.
In a preferred embodiment, the set of output interfaces includes a first output interface and a second output interface, such as a USB-type c interface, a USB-micro interface, and a lighting interface, that is, the power supply device has more than one output port for supplying power to the external. In order to distinguish the output functions of the two output interfaces, the first output interface is connected with the output end of the Buck chip, and the second output interface is directly connected with the commercial power supply module and the battery power supply module, such as being respectively connected with an output rectifying and filtering unit of the commercial power supply module and a Buck-Boost circuit of the battery power supply module. The two output interfaces can be connected with a load, and it can be understood that when only the first output interface is connected with the load, the power supply device receives the power sum of the first output power and the second output power through the power superposition of the two-phase Buck chip, and the second output interface receives the first output power or the second output power of the commercial power supply module and the battery power supply module respectively, and one of the two power supply modules supplies power to the load. Since the power supply device can be used as both a power adapter and a portable power source, there may be situations where the input interface is connected or not connected to the mains electricity and the output interface group is connected or not connected to the load, and the power supply mode of the power supply device is different under different situations. Specifically, when the input interface is connected to the mains supply, and the electric quantity of the battery power supply module is greater than or equal to a first electric quantity threshold (such as 80%, 90%, and the like), which indicates that the electric energy of the mains supply is transmitted into the power supply equipment, and the electric quantity of the battery in the battery power supply module is sufficient, optionally, under the control of a user, or when the power supply function of the battery power supply module configured in the mode setting (ordinary fast charging, fast maximum charging, and the like) of the power supply equipment is activated, the first output power and the second output power of the mains supply module and the battery power supply module are transmitted to the first output interface through the two-phase Buck chip, so that a load connected with the first output interface receives the fast maximum charging of the power supply equipment; when the input interface is connected with the mains supply, and the electric quantity of the battery power supply module is lower than a first electric quantity threshold value or the power supply function of the battery power supply module is not activated, it indicates that the electric quantity of the battery power supply module is not suitable for providing the second output power, or the function of supplying the energy to the outside of the battery power supply module is forbidden by a user or the configuration of a preset mode is forbidden, in this case, only the mains supply module has the energy supply function, so that the mains supply module transmits the first output power to the second output interface, and a load connected to the second output interface receives the first output power, it can be understood that, in this case, if the load connected to the first output interface is the two-phase Buck chip, the two-phase Buck chip does not perform power superposition because the two-phase Buck chip receives only in a single path, and directly outputs the first output power from the output end of the Buck chip to the first; when the input interface is not connected to the commercial power, and the electric quantity of the battery power supply module is greater than or equal to the second electric quantity threshold (e.g., 10%, 20%, 30%), it indicates that the power supply device is used as a portable mobile power supply, and since no commercial power is connected, the battery power supply module can only rely on the energy supplied by the battery power supply module, so that the battery power supply module transmits the second output power to the second output interface, and receives the second output power to the load connected to the second output interface.
Further preferably, the output interface set of the power supply device may further include a third output interface, and the third output interface may be configured the same as the second output interface, and is directly connected to the commercial power supply module and the battery power supply module. When the input interface is connected with commercial power, and the electric quantity of the battery power supply module is lower than a first electric quantity threshold value or the power supply function of the battery power supply module is not activated, the commercial power supply module transmits first output power to the second output interface and the third output interface respectively, so that two loads can be charged simultaneously, and during charging, the first output power can be divided into two parts on average and respectively charge the two loads; when the input interface is not connected with the mains supply and the electric quantity of the battery power supply module is greater than or equal to the second electric quantity threshold value, the battery power supply module transmits second output power to the second output interface and the third output interface respectively, and the second output power of the battery power supply module is divided into two parts on average and then the two parts are charged to the two loads respectively.
When having a second output interface and a third output interface, these two interfaces are in a different position than the first output interface. Since only the first output interface is connected with the two-phase Buck chip, only the first output interface has the function of extremely fast charging. The power supply equipment is provided with a prompt or a mark for distinguishing the first output interface from the second output interface and the third output interface, so that a user is informed that the user needs to use the rapid charging function when only one load needs to be charged, and the user can be connected with the first output interface and can be connected with the second output interface or the third output interface when the user does not need to be charged. It can be understood that when a plurality of loads are simultaneously connected to the first output interface and the second output interface (or the third output interface), since the fast charging function needs to obtain the electric energy from the battery charging module, the electric energy can not be transmitted to the second output interface any more, and thus, in this case, either the first output interface does not have the fast charging function, or the power output by the second output interface is extremely small.
In a further preferred embodiment, a double-input single-output switch is arranged between the commercial power supply module and the battery power supply module and between the second output interface and/or the third output interface. Specifically, the commercial power supply module and the battery power supply module are respectively provided with independent transmission paths connected with the second output interface and the third output interface except for a transmission path connected with the two-phase Buck chip, and the transmission paths connected with the second output interface and the third output interface of the commercial power supply module and the transmission paths connected with the second output interface and the third output interface of the battery power supply module are in parallel connection. On the transmission path, a double-input single-output switch (if only the second output interface is provided, the double-input unit switch is one, and if the second output interface and the third output interface are provided, the double-input unit switch is two) is provided. Each double-input unit switch comprises a mains supply input end connected with the mains supply module, a battery input end connected with the battery supply module and a switch output end connected with the second output interface or the third output interface, namely a double-input single-output mode. The double-input single-output switch has the function of selecting one energy supply path from the commercial power supply module or the battery power supply module and transmitting the energy supply path to the second output interface or the third output interface. For example, when the power supply device is connected to the mains supply through the input interface, the mains supply functional module preferentially provides the first output power, and the dual-input single-output switch only selects the mains supply input end of the mains supply module as the input port and disables the battery input end of the battery power supply module; on the contrary, if the input interface of the power supply device is not connected to the mains supply, the battery power supply module preferentially provides the second output power, the double-input single-output switch only selects the battery input end of the battery power supply module as the input interface, and the mains supply input end of the mains supply module is forbidden. Through the setting of two income single play switches, the main part of the alternative energy supply according to the service environment.
In order to control the double-input single-output switch and the commercial power supply module and the battery power supply module, the power supply equipment also comprises a control chip and an operation unit exposed to the shell of the power supply equipment. The operation unit may be, for example, a touch key, a push key, a voice receiving module, an operation switch, or the like. The operation unit is connected with the control chip, and when a user applies an external operation to the operation unit, the operation unit sends an operation instruction to the control chip to inform the control chip that the control chip is operated by the user and a preset command after the operation unit is operated should be executed. The operation unit is configured to provide an external access for the user to turn on the rapid charging function, that is, even if the above conditions are met, the power supply device does not automatically enable the rapid charging mode, but gives the user an independent option, completely according to the user's instruction. After a user operates the operation unit, the user regards that the function of extremely fast charging is required to be sent to the power supply device, in this case, the control chip is connected with the double-in unit switch, after an operation instruction is received, the double-in single-out switch is forbidden, the energy supply of the commercial power supply module and the battery power supply module to the second output interface and the third output interface is cut off, and the functions of the two modules are independently transmitted to the two-phase Buck chip. Therefore, if the user does not trigger the operation unit, the first output interface provides the first output power or the second output power independently, and no superimposed power exists.
The power supply equipment also comprises a protocol chip which can be integrated in the control chip or integrated with a Buck-Boost circuit in the battery power supply module and connected with the output interface group, the commercial power supply module and the battery power supply module. Since the protocol chip is connected to the output interface group (such as each or any of the first output interface, the second output interface, and the third output interface), it may handshake with a load protocol (the protocol chip is built with a protocol identical to that of the load) also connected to the first output interface, the second output interface, and the third output interface, for example, a PD protocol, a QC fast charging protocol, and so on, and receive, by handshaking with the load, a desired voltage and/or a desired current transmitted by the load to the output interface group, where the desired voltage and the desired current are the voltage and the current at which the load is at the fastest charging speed. It will be appreciated that the fastest charging speed may be different during different charging phases (e.g. fast charging, continuous charging, trickle charging) of the load, and the voltage and current will be delivered to the set of output interfaces according to different requirements of the load. After the expected voltage and/or the expected current are obtained, the protocol chip sends the data to the control chip, the control chip respectively calculates expected power required by the load based on the expected voltage and the expected current according to the expected voltage and/or the expected current, and the commercial power supply module converts the alternating current of the commercial power into a first voltage and a first current which can be output after the direct current. The maximum output power that the commercial power supply module can output, namely the first output power. It is understood that when the first output power is less than the desired power, the mains supply module will not be able to meet the charging requirement of the load, and when the first output power is greater than the desired power, the output of the mains supply module will exceed the charging requirement of the load. In this case, the control chip compares the two signals and outputs different execution instructions for different comparison results. For example, when the first output power is smaller than the expected power, the control chip activates a discharging function in the battery power supply module, that is, the utility power supply module receives the electric energy from the battery power supply module and outputs a second power to the output interface set based on the electric energy of the battery power supply module, so as to compensate a part of the first output power which is different from the expected power, so that the power supply device outputs the expected power to the load, which is exactly the expected power required by the load, and the quick charging requirement of the load and the use requirement of a user on the connected load, such as an intelligent terminal, a tablet computer and a notebook computer, are met; for another example, when the first output power is greater than the expected power, it indicates that a redundant portion will appear in the output voltage and the output current provided by the utility power supply module, and if the first output power is used for continuous power supply, the excess portion will be wasted as excess electric energy, so the control chip will activate the charging function of the battery power supply module, and control the utility power supply module to output the excess portion to the battery power supply module and charge the battery. That is, when the expected power required by the load is too high, the battery power supply module will complement the part to meet the charging requirement of the load; when the expected power required by the load is too low, the excess part of the first output power is output to the battery power supply module to charge the battery, and the power supply device is endowed with the functions of the power adapter and the mobile power supply by using the commercial power and the battery in each case.
In another preferred embodiment, a switch element is connected between the commercial power supply module and the battery power supply module, is connected with the control chip, and is controlled by the control chip to be in a closed or open state. When the control chip controls the switch element, whether the load is connected to the output interface group or not is detected, specifically, when the load is not connected to the output interface group, the switch element is controlled to be closed, so that the commercial power supply module is connected with the battery power supply module to supply power to the battery power supply module, namely when the load is not connected, the built-in battery is charged through the commercial power supply module; when the load is connected to the output interface group, the switch element is controlled to be disconnected, so that the commercial power supply module and the battery power supply module respectively transmit electric energy to the power supply two-phase Buck chip and/or the output interface group, and the connected load is charged through the first output interface or the second output interface.
In summary, with the power supply device of the preferred embodiment, the power supply device can be used as a power adapter or a charger, respectively, through the following different use environments.
Example one
The input interface of the power supply equipment is connected with the mains supply, and the first output interface of the output interface group can be connected with one load to be charged, and the operation unit is operated, so that the mains supply module and the battery power supply module both output electric energy to the two-phase Buck chip, and the load is rapidly charged through the first output interface. In this case, even if a load is connected to the second output interface or the third output interface, no electric power is transmitted to the two interfaces.
If the operation unit is not operated in this embodiment, the load connected to the first output interface only receives the electric energy provided by the utility power supply module, the energy supply functions of the second output interface and the third output interface are opened, and after the load is connected to the second output interface or the third output interface, the load receives the electric energy from the battery power supply module, or the utility power supply module divides part of the power to supply the electric energy to the load connected to the second output interface and the third output interface.
Example two
The input interface of the power supply device is not connected with the mains supply, the mains supply power supply module cannot receive electric energy, and only the battery power supply module has the electric energy. In this case, even if the user operates the operation unit, the function of the rapid charging cannot be activated. And the power supply device is not limited to which output interface the load is connected, only one load is connected to the first output interface or the second output interface, and the power supply device receives the power of all the battery power supply modules, and if two loads are connected to the first output interface and the second output interface, the power supply device averagely receives the power of the battery power supply modules.
EXAMPLE III
When the load is not accessed and the commercial power is accessed, the commercial power supply module charges the battery of the battery power supply module until the battery is fully charged, and the commercial power supply module enters a dormant state, so that the electric energy of the commercial power is saved.
It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A power supply device with superposed output power comprises an input interface, a commercial power supply module and a battery power supply module which are connected with the input interface, and an output interface group which is respectively connected with the commercial power supply module and the battery power supply module,
the power supply equipment also comprises:
the two-phase Buck chip comprises a first input end connected with the mains supply power supply module, a second input end connected with the battery power supply module, and a Buck chip output end connected with the output interface group;
the two-phase Buck chip receives first output power of the mains supply power supply module and second output power of the battery power supply module from a first input end and a second input end respectively, and the first output power and the second output power are transmitted to the output interface group after being superposed so as to provide electric energy for a load connected with the output interface group.
2. The power supply device according to claim 1,
the output interface group comprises a first output interface and a second output interface;
the first output interface is connected with the output end of the Buck chip, and the second output interface is connected with the mains supply power supply module and the battery power supply module;
when the input interface is connected with a mains supply, the electric quantity of the battery power supply module is greater than or equal to a first electric quantity threshold value, and the power supply function of the battery power supply module is activated, first output power and second output power of the mains supply module and the battery power supply module are transmitted to the first output interface through the two-phase Buck chip;
when the input interface is connected with mains supply and the electric quantity of the battery power supply module is lower than a first electric quantity threshold value or the power supply function of the battery power supply module is not activated, the mains supply power supply module transmits first output power to the second output interface;
when the input interface is not connected with the commercial power and the electric quantity of the battery power supply module is larger than or equal to a second electric quantity threshold value, the battery power supply module transmits second output power to the second output interface.
3. The power supply device according to claim 2,
the output interface group further comprises a third output interface;
the third output interface is connected with the commercial power supply module and the battery power supply module;
when the input interface is connected with commercial power, and the electric quantity of the battery power supply module is lower than a first electric quantity threshold value or the power supply function of the battery power supply module is not activated, the commercial power supply module transmits first output power to the second output interface and the third output interface respectively;
when the input interface is not connected with the commercial power and the electric quantity of the battery power supply module is larger than or equal to a second electric quantity threshold value, the battery power supply module transmits second output power to the second output interface and the third output interface respectively.
4. The power supply device according to claim 3,
a double-input single-output switch is arranged between the commercial power supply module and the battery power supply module and between the second output interface and/or the third output interface;
the double-input single-output switch comprises a mains supply input end connected with the mains supply module, a battery input end connected with the battery power supply module and a switch output end connected with the second output interface or the third output interface;
and the double-input single-output switch selectively receives the energy supplied by the commercial power supply module and the battery power supply module and transmits the energy to the second output interface or the third output interface.
5. The power supply device according to claim 4,
the power supply equipment also comprises a control chip and an operation unit partially exposed to the shell of the power supply equipment;
the operation unit receives external operation and sends an operation instruction to the control chip;
the control chip is connected with the double-in single-out switch, and when the operation instruction is received, the control chip disables the double-in single-out switch, so that the commercial power supply module and the energy supply of the battery power supply module are separately transmitted to the two-phase Buck chip.
6. The power supply device according to claim 1,
the power supply equipment also comprises a protocol chip which is connected with the output interface group, the commercial power supply module and the battery power supply module;
the protocol chip and the load are in handshake through the output interface group, and expected voltage and/or expected current are obtained from the load; the protocol chip sends the expected voltage and/or the expected current to a control chip arranged in the power supply equipment, and the control chip controls the output voltage or the output current of the commercial power supply module and the battery power supply module.
7. The power supply device according to claim 6,
the control chip controls the commercial power supply module to output a first voltage and a first current;
the control chip calculates first output power according to the first voltage and the first current and compares the first output power with the expected power of the load;
when the first output power is smaller than the expected power, the control chip activates the battery power supply module to complement the first output power;
when the first output power is larger than the expected power, the control chip controls the commercial power supply module to output part of the first output power to the battery power supply module.
8. The power supply device according to claim 1,
a switch element is connected between the commercial power supply module and the battery power supply module;
when the load is not connected to the output interface group, the switch element is controlled to be closed, so that the commercial power supply module supplies power to the battery power supply module;
when the load is connected to the output interface group, the switch element is controlled to be disconnected, so that the commercial power supply module and the battery power supply module respectively transmit electric energy to the power supply biphase Buck chip and/or the output interface group.
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| CN202020050051.6U CN212012458U (en) | 2020-01-10 | 2020-01-10 | Power supply equipment with superposed output power |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114256920A (en) * | 2021-12-09 | 2022-03-29 | 湖南炬神电子有限公司 | MINI type two-in-one super quick charger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114256920A (en) * | 2021-12-09 | 2022-03-29 | 湖南炬神电子有限公司 | MINI type two-in-one super quick charger |
| CN114256920B (en) * | 2021-12-09 | 2024-01-09 | 湖南炬神电子有限公司 | MINI type two-in-one super quick charge |
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