Power supplying system and power supply adjustment method

Abstract

This invention provides a power supply system and a power supply adjustment method. The power supply system includes a plurality of power supplies, each connected to a plurality of power sources and collectively connected to a load and a bus. Each power supply includes a current sharer and a voltage converter, the voltage converter being electrically connected to the current sharer. Each current sharer generates a voltage conversion signal based at least on output power information and an output current of the corresponding power supply. Each current sharer generates a voltage adjustment signal by using the voltage conversion signal, receiving other voltage conversion signals generated by other current sharers via the bus, and receiving an output voltage from the corresponding power supply provided to the load. Each voltage converter adjusts an input voltage of the corresponding power source according to the voltage adjustment signal.

Description

[Technical Field]

[0001] This invention relates to a power supply system and a power supply adjustment method. More specifically, this invention relates to a power supply system and a power supply adjustment method that can adjust the output power of multiple power supplies. [Previous Technology]

[0002] Following the publication of the IEEE 802.3bt Power Over Ethernet (PoE) standard, many high-power (greater than 1050 watts) network switches and related equipment have been launched. To meet the high power demands of these network switches or equipment, multiple power supplies are often required. However, in reality, the sum of the rated / actual output power of multiple power supplies may exceed the power required by the load (i.e., the aforementioned high-power network switches and related equipment), leading to energy waste. For example, assuming a network switch requires 3000 watts (W), and the two power supplies used each have a rated / actual output power of 2000 watts, then the total rated / actual output power provided by these two power supplies will be 4000 watts, resulting in a 1000-watt energy waste. Therefore, how to mitigate this energy waste problem is a pressing issue to be addressed in the field of this invention. [Summary of the Invention]

[0003] To solve at least the above-mentioned problems, the present invention provides a power supply system. The power supply system may include a plurality of power supplies, each power supply being connected to a plurality of power sources, and the plurality of power supplies being connected to a load and a bus. Each power supply includes a current sharer for generating a voltage conversion signal based at least on an output power information and an output current of the corresponding power supply, transmitting the voltage conversion signal to other current sharers through the bus, and receiving voltage conversion signals generated by other current sharers through the bus; and a voltage converter electrically connected to the current sharer for adjusting an input voltage of the corresponding power source based on the voltage adjustment signal.

[0004] To solve at least the above-mentioned problems, the present invention also provides a power supply adjustment method for a plurality of power supplies. The plurality of power supplies are respectively connected to a plurality of power sources, and the plurality of power supplies are commonly connected to a load and a bus. Each of the plurality of power supplies includes a current sharer for generating a voltage conversion signal based at least on an output power information and an output current of the corresponding power supply, transmitting the voltage conversion signal to other current sharers through the bus, and receiving voltage conversion signals generated by other current sharers through the bus; and generating a voltage adjustment signal based on the voltage conversion signal generated by the current sharer, other voltage conversion signals generated by other current sharers, and an output voltage provided to the load by the corresponding power supply; and a voltage converter electrically connected to the current sharer for adjusting an input voltage of the corresponding power source according to the voltage adjustment signal.

[0005] As described above, in the power supply system and power supply adjustment method provided by the present invention, the input voltage supplied to the load by each power supply is adjusted through each current sharer, bus, and voltage converter, thereby adjusting the power output to the load, so that the sum of the actual output power of all power supplies meets the power required by the load and does not exceed the power required by the load. Therefore, the present invention can effectively solve the above-mentioned problems.

[0006] The above content is not intended to limit the present invention, but only to provide a general description of the technical problems that the present invention can solve, the technical means that can be adopted, and the technical effects that can be achieved, so as to enable those skilled in the art to have a preliminary understanding of the present invention. Based on the attached drawings and the description of the following embodiments, those skilled in the art can further understand the details of various embodiments of the present invention.

Implementation Method

[0010] The present invention will be described below through several embodiments, but these embodiments are not intended to limit the invention to being practiced only according to the described operations, environments, applications, structures, processes, or steps. Elements not directly related to the present invention are not shown in the drawings, but may be implied in the drawings. In the drawings, the dimensions of each element and the proportions between elements are merely exemplary and not intended to limit the invention. Unless otherwise specified, in the following, the same (or similar) element symbols may correspond to the same (or similar) elements. Where feasible, unless otherwise specified, the quantity of each element described below may be one or more.

[0011] The terminology used in this disclosure is for illustrative purposes only and is not intended to limit the invention. Unless the context clearly indicates otherwise, the singular form "a" is intended to include the plural form as well. Terms such as "comprising," "including," etc., indicate the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0012] Figure 1 illustrates a schematic diagram of one architecture of the network power supply system of the present invention. The content shown in Figure 1 is only for illustrating certain embodiments of the network power supply system of the present invention, and is not intended to limit the scope of protection of the present invention.

[0013] As shown in FIG1, in some embodiments of the present invention, the power supply system 1 may substantially include a plurality of power supplies, such as, but not limited to, power supplies PS1 and PS2. Power supply PS1 is connected to power supply 10A, while power supply PS2 is connected to power supply 20A, and power supplies PS1 and PS2 are connected to the same load 30. Furthermore, power supply PS1 includes a current sharer 10 and a voltage converter 12, and the current sharer 10 is electrically connected to the voltage converter 12. Similarly, power supply PS2 includes a current sharer 20 and a voltage converter 22, and the current sharer 20 is electrically connected to the voltage converter 22. Additionally, the current sharer 10 is used to generate a voltage adjustment signal VC1 based at least on the output power information OP1 of power supply PS1 and the output current OC1 of power supply PS1, where the output power information OP1 includes the output power corresponding to power supply PS1. Furthermore, the voltage converter 12 is used to convert the input voltage PV1 of the power supply 10A into an output voltage OV1 provided to the load 30 according to the voltage adjustment signal VC1.

[0014] Similarly, the current sharer 20 is used to generate a voltage adjustment signal VC2 based at least on an output power information OP2 of the power supply PS2 and an output current OC2 of the power supply 20, wherein the output power information OP2 includes the output power corresponding to the power supply PS2. Furthermore, the voltage converter 22 is used to convert the input voltage PV2 of the power supply 20A into an output voltage OV2 provided to the load 30 based on the voltage adjustment signal VC2.

[0015] In some embodiments, the current sharer 10 of the power supply PS1 may include a power information providing module 101, a current amplification module 103, and a voltage regulation module 105. The power information providing module 101 is used to store and provide information related to the output power information OP1 of the power supply PS1, such as, but not limited to, the power of the output power information OP1 and the rated output voltage value corresponding to that power. For example, when the output power information OP1 of the power supply PS1 is 1000 watts, the power information providing module 101 may store and provide such a power value and / or the rated output voltage value (e.g., 1 volt) corresponding to that power value.

[0016] Similarly, the current sharer 20 of the power supply PS2 may include a power information providing module 201, a current amplification module 203, and a voltage regulation module 205. The power information providing module 201 is used to store and provide information related to the output power information OP2 of the power supply PS2, such as, but not limited to, the power of the output power information OP2, the rated output voltage value corresponding to that power, etc.

[0017] The current amplification module 103 is electrically connected to the voltage regulation module 105 and a bus 40, and the bus 40 is disposed between the corresponding power supplies PS1 and PS2. More specifically, the bus 40 can be disposed inside or outside the power supplies PS1 and PS2, or it can be disposed inside the current sharer 10 and current sharer 20. The power information module 101 provides the stored output power information OP1 (i.e., the aforementioned rated output voltage value, etc.) to the current amplification module 103. After detecting the output current OC1 of the power supply PS1, the current amplification module 103 obtains the information of the output current OC1 of the power supply PS1, such as, but not limited to, the rated current value. Then, the current amplification module 103 generates a voltage conversion signal VA1 based on the output power information OP1 and the output current OC1. Furthermore, the current amplification module 103 transmits the voltage conversion signal VA1 through the bus 40 to the voltage adjustment module 205 of the other power supply PS2, so the voltage adjustment module 205 can know the voltage of the power supply PS1.

[0018] Similarly, the current amplification module 203 is electrically connected to the voltage regulation module 205 and the bus 40. The power information module 201 provides the stored output power information OP2 to the current amplification module 203. After detecting the output current OC2 of the power supply PS2, the current amplification module 203 obtains the information of the output current OC2 of the power supply PS2. Then, the current amplification module 203 generates a voltage conversion signal VA2 based on the output power information OP2 and the output current OC2. Furthermore, the current amplification module 203 transmits the voltage conversion signal VA2 to the voltage regulation module 105 of the other power supply PS1 through the bus 40, so the voltage regulation module 105 can know the voltage magnitude of the power supply PS2. In other words, through the current sharer 10 and the current sharer 20, the power supplies PS1 and PS2 can know each other's voltage magnitudes.

[0019] Specifically, after detecting the output voltage OV1 of the power supply PS1, the voltage adjustment module 105 obtains information about the output voltage OV1 of the power supply PS1, such as, but not limited to, the rated voltage value. Then, the voltage adjustment module 105 generates a voltage adjustment signal VC1 based on the output voltage OV1, the voltage conversion signal VA1, and the voltage conversion signal VA2 emitted by the current amplification module 203. Similarly, after detecting the output voltage OV2 of the power supply PS, the voltage adjustment module 205 obtains information about the output voltage OV2 of the power supply PS2, and generates a voltage adjustment signal VC2 based on the output voltage OV2, the voltage conversion signal VA2, and the voltage conversion signal VA1 emitted by the current amplification module 103.

[0020] Since the voltage adjustment module 105 receives the voltage conversion signal VA1 from the current amplification module 103 and the voltage conversion signal VA2 from the current amplification module 203, the voltage adjustment module 105 can determine whether the voltage value of power supply PS2 is greater than or less than the voltage value of power supply PS1. Similarly, the voltage adjustment module 205 receives the voltage conversion signal VA2 from the current amplification module 203 and the voltage conversion signal VA1 from the current amplification module 103, and can determine whether the voltage value of power supply PS1 is greater than or less than the voltage value of power supply PS2. Furthermore, after determining the relative voltage values ​​of power supply PS1 and power supply PS2, the voltage adjustment modules 105 and 205 can determine the required voltage values ​​for voltage converters 12 and 22 based on the needs of the load 30.

[0021] In other words, regarding the power supply PS1, the current amplification module 103 in the current sharer 10 can detect the input current OC1 at any time, and the current amplification module 103 can transmit the voltage conversion signal VA1 to the voltage adjustment module 205 through the bus 40. At the same time, the voltage adjustment module 105 can determine the voltage magnitude of the voltage conversion signals VA1 and VA2, and the voltage adjustment module 105 can detect the output voltage OV1 at any time. Based on the output voltage OV1, the voltage conversion signal VA1, and the voltage conversion signal VA2 issued by the current amplification module 203, the voltage adjustment module 105 determines the voltage value that needs to be adjusted according to the needs of the load 30, and then generates the voltage adjustment signal VC1.

[0022] Similarly, regarding the power supply PS2, the current amplification module 203 in the current sharer 20 can detect the input current OC2 at any time, and the current amplification module 203 can transmit the voltage conversion signal VA2 to the voltage adjustment module 105 through the bus 40. At the same time, the voltage adjustment module 205 can determine the voltage magnitude of the voltage conversion signals VA1 and VA2, and the voltage adjustment module 205 can detect the output voltage OV2 at any time. Based on the output voltage OV2, the voltage conversion signal VA2, and the voltage conversion signal VA1 issued by the current amplification module 103, the voltage adjustment module 205 determines the voltage value that needs to be adjusted according to the needs of the load 30, and then generates the voltage adjustment signal VC2. In this way, voltage converter 12 can adjust the output voltage OV1 according to the voltage adjustment signal VC1, and voltage converter 22 can adjust the output voltage OV2 according to the voltage adjustment signal VC2, so as to meet the power requirements of load 30.

[0023] In summary, when the combined output power of power supply PS1 and power supply PS2 in power supply system 1 is greater than the power demand of load 30, the current sharer 10 and current sharer 20 can periodically or irregularly detect the status of power supply 10A and power supply 20A at various stages, and make judgments based on these detection results. The output voltages of the two power supply PS1 and power supply PS2 with the same or different output power are adjusted proportionally according to the power demand of load 30, thereby adjusting the output power of each power supply with different input power to the power demand of load 30.

[0024] In some embodiments, power supply PS1 includes a diode 106 electrically connected to current amplification module 103 and bus 40, while power supply PS2 includes a diode 206 electrically connected to current amplification module 203 and bus 40, for isolating low-voltage power. For example, if the output power of power supply PS1 is 2000W (voltage 100-120V, i.e., low voltage), while the output power of power supply PS2 is 4000W (voltage 200-240V, i.e., high voltage). Next, the power information providing module 101 provides the output power information OP1 (2000W) to the current amplification module 103. The current amplification module 103 generates a low-voltage (100-120V) voltage conversion signal VA1, which is filtered and isolated by diode 106 and not transmitted to bus 40. Additionally, the power information providing module 201 provides the output power information OP2 (4000W) to the current amplification module 203. The high-voltage (200-240V) voltage conversion signal VA2 generated by the current amplification module 203 is then directly transmitted through diode 206 to bus 40, and then through bus 40 to the voltage regulation module 105.

[0025] When the voltage adjustment module 105 receives the high-voltage voltage conversion signal VA2, it will also receive the low-voltage voltage conversion signal VA1 provided by the current amplification module 103. The voltage adjustment module 105 can then determine the voltage magnitudes of the voltage conversion signals VA1 and VA2. Next, based on the output voltage OV1, the voltage conversion signal VA1, and the voltage conversion signal VA2 issued by the current amplification module 203, and according to the requirements of the load 30, the voltage adjustment module 105 determines the voltage value that needs to be adjusted, and thus generates a voltage adjustment signal VC2. After receiving the voltage adjustment signal VC2, the voltage converter 12 will adjust the output voltage OV1 to match the output voltage OV2. Since the current amplification module 103 constantly monitors the output current OC1, the output current OC1 will also change when the output voltage OV1 changes. Therefore, the low voltage voltage conversion signal VA1 provided by the current amplification module 103 will become a high voltage. The diode 106 will not isolate or filter the high voltage voltage conversion signal VA1, and will transmit it to the voltage adjustment module 205 through the bus 40 to achieve the purpose of current sharing.

[0026] In some embodiments, the current amplification modules 105 and 205 of the current sharers 10 and 20 can generate voltage conversion signals VA1 and VA2 respectively according to the following equations, and the corresponding voltage converters 12 and 22 can adjust the input voltages PV1 and PV2 of the corresponding power supplies 10A and 20A to the output voltages OV1 and OV2 provided to the load 30 according to the voltage conversion signals VC1 and VC2. (Equation 1) Wherein, VLS is the output signal of the current amplification modules 105 and 205 (corresponding to the voltage conversion signals VA1 and VA2), and is the output current of the power supplies PS1 and PS2 (corresponding to the output currents OC1 and OC2), and Gain_Pb (power gain) is a parameter calculated based on the output power information OP1 and OP2 provided by the output power information modules 101 and 201, and is expressed as, where Po_max represents the maximum output power among the power supplies in the same series, and Po_min represents the minimum output power among the power supplies in the same series.

[0027] For example, suppose the power demand of load 30 is 3000W, the original output power of power supply PS1 is 2000W, the original output power of power supply PS2 is 4000W, the maximum output power of power supply in the same series is 10000W, the minimum output power of power supply in the same series is 2000W, and the output voltage of power supply PS1 and power supply PS2 is 100V. In this example, according to Equation 1, for power supply PS1 and PS2, Gain_Pb is 0.05 (that is, 10000W / (2000W×100)). The voltage conversion signal VA1 can be expressed as, and the voltage conversion signal VA2 can be expressed as. In addition, since the power requirement of load 30 is 3000W, the current requirement of load 30 is 30A (3000W / 100V), and this current requirement is provided by the output current OC1 of power supply PS1 and the output current OC2 of the second power supply PS2 (that is, OC1+OC2=30A).

[0028] Voltage adjustment modules 105 and 205 continuously adjust voltage converters 12 and 22 respectively using voltage conversion signals VC1 and VC2 until VA1 = VA2 (reaching a steady state). The larger the values ​​of voltage conversion signals VC1 and VC2, the higher the output voltages OV1 and OV2 of voltage adjustment modules 105 and 205. When VA1 = VA2, in order to simultaneously satisfy the conditions 0.05 × OC1 = 0.05 × OC2 and OC1 + OC2 = 30A, it can be calculated that the output currents OC1 and OC2 are both 15A, and the voltage conversion signals VA1 and VA2 are both 0.75 (i.e., 0.05 × 15A). When VA1 = VA2 = 0.75, the output power of power supply PS1 will be adjusted from 2000W to 1500W (calculated by multiplying the output voltage of power supply PS1 by the current output current OC1, i.e., 100V × 15A), and the output power of power supply PS2 will be adjusted from 4000W to 1500W (calculated by multiplying the output voltage of power supply PS2 by the current output current OC2, i.e., 100V × 15A), to jointly provide the 3000W required by load 30 (i.e., 1500W + 1500W). At this time, the output power of power supply PS1 will be reduced to 75% of the original 2000W, and the output power of power supply PS2 will be reduced to 37.5% of the original 4000W.

[0029] Referring next to FIG. 2, in some embodiments of the present invention, the current sharer 10 of the power supply system 2 further includes a voltage detection module 107, and the current sharer 20 further includes a voltage detection module 207. After detecting the input voltage PV1 of the power supply PS1, the voltage detection module 107 obtains information about the input voltage PV1 of the power supply PS1, such as, but not limited to, the rated voltage value. Then, the voltage detection module 107 transmits the information about the input voltage PV1 to the current amplification module 103, and the current amplification module 103 generates a voltage conversion signal VA1 based on the information about the input voltage PV1, the output power information OP1, and the output current OC1. Similarly, after detecting the input voltage PV2 of the power supply PS2, the voltage detection module 207 obtains information about the input voltage PV2 of the power supply PS2. Next, the voltage detection module 207 transmits the input voltage PV2 information to the current amplification module 203, and the current amplification module 203 generates a voltage conversion signal VA2 based on the input voltage PV2, the output power information OP2, and the output current OC2 information.

[0030] Unlike power supply system 1, power supply system 2 can periodically or irregularly detect the input voltage PV1 of power supply PS1 and the input voltage PV2 of power supply PS2 when the output power of power supply PS1 and power supply PS2 is inconsistent. Therefore, when the input voltages of power supply PS1 and power supply PS2 are different, or when power supply PS1 and PS2 exhibit different power under high voltage or low voltage input, voltage detection modules 107 and 207 can detect the current input voltages PV1 and PV2 at any time, so that voltage converters 12 and 22 can adjust the input voltages PV1 and PV2 to the required power of load 30 at any time.

[0031] In some embodiments, the current amplification modules 105 and 205 of the current sharers 10 and 20 can generate voltage conversion signals VA1 and VA2 respectively according to the following equations, and the corresponding voltage converters 12 and 22 can adjust the input voltages PV1 and PV2 of the corresponding power supplies 10A and 20A to the output voltages OV1 and OV2 provided to the load 30 according to the voltage conversion signals VC1 and VC2. (Equation 2) Wherein, VLS is the output signal of current amplification modules 105 and 205 (corresponding to voltage conversion signals VA1 and VA2); Gain_Pa (power gain) is a parameter calculated based on the input voltages PV1 and PV2 detected by voltage detection modules 107 and 207, and is expressed as, while Gain_Pb (power gain) is a parameter calculated based on the output power information OP1 and OP2 provided by output power information modules 101 and 201, and is expressed as, where Po represents the output power of each power supply, Po_max represents the maximum output power among power supplies in the same series, and Po_min represents the minimum output power among power supplies in the same series.

[0032] For example, suppose the load 30 requires 3000W of power, the original output power of power supply PS1 is 2000W (meaning the input voltage PV1 of power supply PS1 is low voltage, such as 100~120VAC), the original output power of power supply PS2 is 4000W (meaning the input voltage PV2 of power supply PS1 is high voltage, such as 200~240VAC), the maximum output power of power supply in the same series is 10000W, the minimum output power of power supply in the same series is 2000W, and the output voltage of power supply PS1 and power supply PS2 are both 100V. In this example, according to Equation 2, for power supply PS1, Gain_Pa=1 (that is, 2000W / 2000W), and Gain_Pb=0.05 (that is, 10000W / (2000W×100)). For power supply PS2, ... Gain_Pa = 2 (i.e., 4000W / 2000W), and Gain_Pb = 0.05 (i.e., 10000W / (2000W×100)). Furthermore, the voltage conversion signal VA1 can be represented as [signal], and the voltage conversion signal VA2 can be represented as [signal]. Additionally, since the power requirement of load 30 is 3000W, the current requirement of load 30 is 30A (3000W / 100V), and this current requirement is provided by the output current OC1 of power supply PS1 and the output current OC2 of the second power supply PS2 (i.e., OC1 + OC2 = 30A).

[0033] Voltage adjustment modules 105 and 205 continuously adjust voltage converters 12 and 22 respectively using voltage conversion signals VC1 and VC2 until VA1 = VA2 (reaching steady state). The larger the values ​​of voltage conversion signals VC1 and VC2, the higher the output voltages OV1 and OV2 of voltage adjustment modules 105 and 205. When VA1 = VA2, in order to simultaneously satisfy the conditions 0.05 × OC1 = 0.025 × OC2 and OC1 + OC2 = 30A, the output currents OC1 and OC2 at this time can be calculated to be 10A and 20A respectively, and the voltage conversion signals VA1 and VA2 at this time are both 0.5 (that is, 0.05 × 10A and 0.025 × 20A). When VA1 = VA2 = 0.5, the output power of power supply PS1 will be adjusted from 2000W to 1000W (calculated by multiplying the output voltage of power supply PS1 by the current output current OC1, i.e., 100V × 10A), and the output power of power supply PS2 will be adjusted from 4000W to 2000W (calculated by multiplying the output voltage of power supply PS2 by the current output current OC2, i.e., 100V × 20A), to jointly provide the 3000W required by load 30 (i.e., 1500W + 1500W). At this time, the output power of power supply PS1 will be reduced to 50% of the original 2000W, and the output power of power supply PS2 will also be reduced to 50% of the original 4000W.

[0034] As described above, by using the current sharers 10 and 20 and voltage converters 12 and 22 of the present invention to provide the required power to the load 30, the output power of each power supply PS1 and PS2 is adjusted so that the actual output power of all power supplies meets the required power of the load 30. This saves unnecessary power losses in the power supply systems 1 and 2. Furthermore, it effectively avoids the high temperature problem caused by low-power power supplies.

[0035] In addition, in some embodiments of the present invention, since the input voltages PV1 and PV2 of the power supplies 10A and 20A affect the output voltages OV1 and OV2 of the power supplies PS1 and PS2, when the power supply efficiency and voltage change randomly (for example, solar power generation, where the amount of sunshine varies depending on the season and climate temperature, causing changes in power supply efficiency), the output voltages OV1 and OV2 of the power supplies PS1 and PS2 will also change accordingly. By constantly detecting the input voltages PV1 and PV2 through the voltage detection modules 107 and 207 of the power supply system 2, the actual output power and output voltages OV1 and OV2 of the power supplies PS1 and PS2 can be determined, and the power supplies PS1 and PS2 can be adjusted to meet the power requirements of the load 30.

[0036] It should be further noted that the current sharing lines of the power supply systems 1 and 2 of the present invention are not limited to being adjusted by analogy, but can also be adjusted by digital means.

[0037] Figure 3 illustrates a flowchart of a power supply adjustment method (hereinafter referred to as "power supply adjustment method 3") for a plurality of power supplies according to certain embodiments of the present invention. The content shown in Figure 3 is only for illustrating embodiments of the present invention and is not intended to limit the scope of protection of the present invention.

[0038] Referring to Figure 3, a power supply adjustment method is applicable to a power supply system, the power supply system including a plurality of power supplies, the plurality of power supplies being connected to a plurality of power sources respectively, the plurality of power supplies being connected to a load and a bus, each of the plurality of power supplies including a current sharer and a voltage converter, the power supply adjustment method 3 may include the following steps: each current sharer generating a voltage conversion signal based at least on an output power information and an output current of the corresponding power supply (step 301); by Each current sharer transmits the voltage conversion signal to other current sharers through the bus (step 302); the bus receives the voltage conversion signals generated by other current sharers (step 303); each current sharer generates a voltage adjustment signal based on its own voltage conversion signal, the other voltage conversion signals generated by the other current sharers, and the output voltage provided to the load by the corresponding power supply (step 304); and each voltage converter adjusts the input voltage of the corresponding power supply based on the voltage adjustment signal (step 305).

[0039] In some embodiments of the power supply adjustment method 3, each current sharer generates the voltage conversion signal based on the input voltage of the corresponding power supply, the output power of the corresponding power supply, and the output current of the corresponding power supply.

[0040] In some embodiments of power supply adjustment method 3, the input voltages of the plurality of power supplies are different.

[0041] In some embodiments of power supply adjustment method 3, the output power of the plurality of power supplies is different.

[0042] In some embodiments of the power supply adjustment method 3, the sum of the output power of the plurality of power supplies is greater than the power demand of the load.

[0043] Each embodiment of the power supply adjustment method 3 corresponds essentially to a certain embodiment of the power supply system 1. Therefore, based solely on the above description of the power supply system 1, those skilled in the art to which this invention pertains can fully understand and implement all corresponding embodiments of the power supply adjustment method 3, even if each embodiment of the power supply adjustment method 3 has not been described in detail above.

[0044] The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of protection of the present invention. Any other embodiments resulting from modifications, changes, adjustments, or integrations to the above embodiments, as long as they are readily conceived by those skilled in the art, are covered within the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims. [Simplified Explanation of the Diagram]

[0007] Figure 1 illustrates a schematic diagram of one architecture of a power supply system according to the present invention.

[0008] Figure 2 illustrates a schematic diagram of another architecture of the power supply system according to the present invention.

[0009] Figure 3 illustrates a flowchart of the power supply adjustment method according to the present invention. [Biomaterial Storage]

[0046] None

Claims

1. A power supply system comprising: a plurality of power supplies, the plurality of power supplies being respectively connected to a plurality of power sources, and the plurality of power supplies being commonly connected to a load and a bus, wherein each of the plurality of power supplies includes a current sharer, the current sharer further comprising: a power information providing module for providing output power information of a corresponding power supply; a current amplification module electrically connected to the power information providing module and the bus, and for: detecting an output current of the corresponding power supply; generating a voltage conversion signal based on a power gain calculated from the output power information of the corresponding power supply and the output current of the corresponding power supply; and transmitting the voltage conversion signal to other current sharers through the bus; and a voltage regulation module electrically connected to the current amplification module and the bus, and for: detecting an output voltage provided by the corresponding power supply to the load; The bus receives other voltage conversion signals generated by the current sharer of other power supplies; and generates a voltage adjustment signal based on the detected output voltage, the voltage conversion signal generated by the current amplification module, and the other voltage conversion signals generated by the current sharer of other power supplies; and a voltage converter electrically connected to the current sharer is used to adjust an input voltage of the corresponding power supply according to the voltage adjustment signal.

2. The power supply system as described in claim 1, wherein, The current amplification module of each current sharer generates the voltage conversion signal based on the power gain calculated from the input voltage of the corresponding power supply, the output power information of the corresponding power supply, and the output current of the corresponding power supply.

3. The power supply system as described in claim 2, wherein, The current sharing circuit of each of the plurality of power supplies further includes: a voltage detection module for detecting the input voltage of the corresponding power supply; wherein the current amplification module generates the voltage conversion signal based on the power gain calculated from the output power information of the corresponding power supply, another power gain calculated from the detected input voltage, and the output current of the corresponding power supply.

4. The power supply system as described in claim 3, wherein, The input voltages of these complex power supplies are different.

5. The power supply system as described in claim 1, wherein, The output power of the multiple power supplies is different.

6. The power supply system as described in claim 1, wherein, The sum of the output power of the plurality of power supplies is greater than the power demand of the load.

7. A power supply adjustment method applicable to a power supply system comprising a plurality of power supplies, the plurality of power supplies being connected to a plurality of power sources, the plurality of power supplies being connected to a load and a bus, each of the plurality of power supplies comprising a current sharer and a voltage converter, the power supply adjustment method comprising: providing output power information of a corresponding power supply by each current sharer; detecting an output current of a corresponding power supply by each current sharer; generating a voltage conversion signal by each current sharer based on a power gain calculated from the output power information of the corresponding power supply and the output current of the corresponding power supply; transmitting the voltage conversion signal to other current sharers through the bus by each current sharer; detecting an output voltage provided by the corresponding power supply to the load by each current sharer; and receiving the voltage conversion signal generated by other current sharers by the bus. Each current sharer generates a voltage adjustment signal based on the detected output voltage, its own voltage conversion signal, and other voltage conversion signals generated by the other current sharers; and each voltage converter adjusts the input voltage of the corresponding power supply based on the voltage adjustment signal.

8. The power supply adjustment method as described in claim 7, wherein, Each current sharer generates the voltage conversion signal based on the input voltage of the corresponding power supply, the power gain calculated from the output power information of the corresponding power supply, and the output current of the corresponding power supply.

9. The power supply adjustment method as described in claim 8, wherein, The input voltages of these complex power supplies are different.

10. The power supply adjustment method as described in claim 7, wherein, The output power of the multiple power supplies is different.

11. The power supply adjustment method as described in claim 7, wherein, The sum of the rated output power of the plurality of power supplies is greater than the power demand of the load.

Images