CN113258558B - Multi-path uncontrollable rectifying parallel arbitrary current distribution device - Google Patents
Multi-path uncontrollable rectifying parallel arbitrary current distribution device Download PDFInfo
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- CN113258558B CN113258558B CN202110567996.4A CN202110567996A CN113258558B CN 113258558 B CN113258558 B CN 113258558B CN 202110567996 A CN202110567996 A CN 202110567996A CN 113258558 B CN113258558 B CN 113258558B
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- 238000005070 sampling Methods 0.000 claims abstract description 63
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/106—Parallel operation of dc sources for load balancing, symmetrisation, or sharing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a multipath uncontrollable rectifying parallel arbitrary current distribution device, and belongs to the technical field of automatic control. The device comprises: the device comprises a singlechip, an uncontrollable rectifying circuit I, an uncontrollable rectifying circuit II, a Boost circuit I, boost circuit II, a direct-current signal sampling circuit I, a direct-current signal sampling circuit II, a liquid crystal display module, keys, a reference unit and a load. The device can realize the current sharing output of the multipath uncontrollable rectification parallel circuit and can output the current in any current proportion; the power supply can realize different alternating voltage inputs, can realize simultaneous lifting output of multiple paths of voltages, has the advantages of small power consumption, small volume, light weight and the like, accords with the characteristics of high frequency, modularization and digitalization of a switching power supply, and is easy to popularize and apply.
Description
Technical Field
The invention belongs to the technical field of automatic control, and particularly relates to a multipath uncontrollable rectifying parallel arbitrary current distribution device.
Background
With the development of power electronics technology, various electronic devices have higher and higher requirements on power supply power, and current requirements have also been higher and higher, and switching power supplies have been developed to a higher power direction. There is a trend to develop a variety of high power, high performance switching power supplies. However, the efficiency is not high at the maximum output power of a single high-power switching power supply module due to the influence of the performances of semiconductor power devices, magnetic materials and the like constituting the power supply module. Therefore, the high-power supply system needs to use a plurality of switching power supplies to operate in parallel so as to meet the requirement of load power.
With the development of modern industry, the energy shortage has higher and higher requirements on the capacity, efficiency and performance of the power supply, and the single power supply is limited by power electronic devices, so that the reliability is not high, ultra-large capacity power supply cannot be realized, the parallel operation of a plurality of power supplies to provide high-power output is one direction of the development of the power supply technology, and the current sharing technology is a key technology for realizing the high-power supply and the redundant power supply.
At present, a module powered by multiple power supplies is adopted in China, and only the current sharing distribution of each module is realized, and the power supply module with current distributed in any proportion is not provided. This places high demands on the power supply, which must be limited by the confusion of unequal power. However, if the power supply current of each module can be set in any proportion, the maximum power supply current of the module can be set according to the power of the power supply module, so that each module can supply power to the load in any proportion, and the efficiency of the power supply module is maximized.
The application of the parallel connection of the switch power supply modules is that the voltage, the current and the power output by one direct-current stable power supply can not meet the requirements, so that a modularized construction method is adopted in practical application, and the purposes of expanding the output voltage, the output current and the output power are respectively achieved by using a modularized power supply with a certain specification in a parallel connection mode. The switching power supply combines the constant voltage and constant current technology, can improve the output power of the power supply, enhance the capacity of carrying load, better improve the utilization rate of energy sources and realize the purpose of energy conservation.
The adoption of parallel operation of a plurality of power supply modules is an effective method for solving the problem of high-power output of a switching power supply, but the distribution control of output current is a key of parallel operation. Therefore, how to overcome the defects of the prior art is a problem to be solved in the technical field of automatic control.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a multipath uncontrollable rectifying parallel arbitrary current distribution device. The device can realize current sharing output, random proportion output, different alternating voltage input and simultaneous lifting output of multiple paths of voltages.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A multi-path uncontrollable rectifying parallel arbitrary current distribution device, comprising: the device comprises a singlechip, an uncontrollable rectifying circuit I, an uncontrollable rectifying circuit II, a Boost circuit I, boost circuit II, a direct-current signal sampling circuit I, a direct-current signal sampling circuit II, a liquid crystal display module, a key and a reference unit;
The output of the uncontrollable rectifying circuit I is connected with the input of the Boost circuit I, the output of the uncontrollable rectifying circuit II is connected with the input of the Boost circuit II, the output of the Boost circuit I, boost is connected with a bus, and the bus is connected with a load;
PWM ports of the singlechip are respectively connected with a Boost circuit I, boost circuit II;
One end of the direct current signal sampling circuit I is connected with the output of the Boost circuit I, and the other end of the direct current signal sampling circuit I is respectively connected with the AD port of the singlechip;
One end of the direct current signal sampling circuit II is connected with the output of the Boost circuit II, and the other end of the direct current signal sampling circuit II is respectively connected with the AD port of the singlechip;
the liquid crystal display module, the keys and the reference unit are all connected with the singlechip.
Further, it is preferable that the Boost circuit I and the Boost circuit II have the same structure, and the dc signal sampling circuit I6 and the dc signal sampling circuit II have the same structure.
Further, it is preferable that Boost circuit I includes capacitors C1, C2, an inductance L, mos, a diode V, and a diode D; the direct current signal sampling circuit I comprises resistors R1, R2 and R3 and an operational amplifier M.
The positive electrode of the capacitor C1 is connected with the inductor L and the positive electrode of the direct current input, and the negative electrode of the capacitor C1 is connected with the negative electrode of the direct current input;
The other end of the inductor L is respectively connected with the anode of the diode D and the drain electrode of the mos tube V, the grid electrode of the mos tube V is connected with the PWM port of the singlechip 1, and the source electrode of the mos tube V is grounded;
The negative electrode of the diode D is respectively connected with the positive electrode of the capacitor C2 and the resistor R1, the negative electrode of the capacitor C2 is grounded, the other end of the resistor R1 is respectively connected with the AD port of the singlechip 1 and the resistor R2, and the other end of the resistor R2 is grounded; the resistor R3 is connected in series with the cathode of the direct current output, and the input end of the operational amplifier M is connected in parallel with the two sides of the resistor R3; the output end of the operational amplifier M is connected with the AD port of the singlechip 1.
Further, it is preferable that the direct current signal sampling circuit I includes a voltage sampling module and a current sampling module; the voltage sampling module and the current sampling module are connected with the singlechip.
Further, it is preferable that the reference unit employs a reference voltage chip LM1117.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention provides a multi-path uncontrollable rectifying parallel arbitrary current distribution device which is novel in structure, can realize multi-path different alternating voltage input, direct current and current sharing output and can output arbitrary current proportion.
(2) The device can realize the simultaneous lifting output of multiple paths of voltages.
(3) The device has the advantages of small power consumption, small volume, light weight and the like, accords with the characteristics of high frequency, modularization and digitalization of a switching power supply, and is easy to popularize and apply.
Drawings
FIG. 1 is a schematic block diagram of the structure of the invention;
FIG. 2 is a circuit diagram of the Boost circuit I and the DC signal sampling circuit I of the present invention;
in the figure: 1-singlechip 1, 2-uncontrollable rectifying circuit I, 3-uncontrollable rectifying circuit II,4-Boost circuit I,5-Boost circuit II, 6-direct current signal sampling circuit I, 7-direct current signal sampling circuit II, 8-liquid crystal display module, 9-button, 10-reference unit, 11-load, V-mos tube, R1, R2, R3-fixed value resistor, D-diode, C1, C2-capacitor, M-operational amplifier.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the present invention and should not be construed as limiting the scope of the invention. The specific techniques, connections, or conditions are not identified in the examples and are set forth in accordance with the techniques, connections, conditions, or in accordance with the product specifications described in the literature in this field. The materials, instruments or equipment used are conventional products available from commercial sources, not identified to the manufacturer.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wireless connections. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. The orientation or state relationship indicated by the terms "inner", "upper", "lower", etc. are orientation or state relationship based on the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "provided" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention is understood by those of ordinary skill in the art according to the specific circumstances.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1-2, a multi-path uncontrollable rectifying parallel arbitrary current distribution device includes: the device comprises a singlechip 1, an uncontrollable rectifying circuit I2, an uncontrollable rectifying circuit II3, a Boost circuit I4, a Boost circuit II5, a direct current signal sampling circuit I6, a direct current signal sampling circuit II7, a liquid crystal display module 8, a key 9 and a reference unit 10;
The output of the uncontrollable rectifying circuit I2 is connected with the input of the Boost circuit I4, the output of the uncontrollable rectifying circuit II3 is connected with the input of the Boost circuit II5, the outputs of the Boost circuit I4 and the Boost circuit II5 are connected with a bus, and the bus is connected with the load 11;
PWM (pulse width modulation) ports of the singlechip 1 are respectively connected with a Boost circuit I4 and a Boost circuit II 5;
One end of the direct current signal sampling circuit I6 is connected with the output of the Boost circuit I4, and the other end of the direct current signal sampling circuit I6 is respectively connected with the AD port of the singlechip 1;
one end of the direct current signal sampling circuit II7 is connected with the output of the Boost circuit II5, and the other end of the direct current signal sampling circuit II7 is respectively connected with the AD port of the singlechip 1;
The liquid crystal display module 8, the key 9 and the reference unit 10 are all connected with the singlechip 1.
Preferably, the Boost circuit I4 and the Boost circuit II5 have the same structure, and the dc signal sampling circuit I6 and the dc signal sampling circuit II7 have the same structure.
Preferably, boost circuit I includes capacitors C1, C2, inductor L, mos, V and diode D; the direct current signal sampling circuit I6 includes resistors R1, R2, R3 and an operational amplifier M.
The positive electrode of the capacitor C1 is connected with the inductor L and the positive electrode of the direct current input, and the negative electrode of the capacitor C1 is connected with the negative electrode of the direct current input;
The other end of the inductor L is respectively connected with the anode of the diode D and the drain electrode of the mos tube V, the grid electrode of the mos tube V is connected with the PWM port of the singlechip 1, and the source electrode of the mos tube V is grounded;
The negative electrode of the diode D is respectively connected with the positive electrode of the capacitor C2 and the resistor R1, the negative electrode of the capacitor C2 is grounded, the other end of the resistor R1 is respectively connected with the AD port of the singlechip 1 and the resistor R2, and the other end of the resistor R2 is grounded; the resistor R3 is connected in series with the cathode of the direct current output, and the input end of the operational amplifier M is connected in parallel with the two sides of the resistor R3; the output end of the operational amplifier M is connected with the AD port of the singlechip 1.
Preferably, the direct current signal sampling circuit I6 comprises a voltage sampling module and a current sampling module; the voltage sampling module and the current sampling module are connected with the singlechip.
Preferably, the reference unit includes a reference voltage chip LM1117.
The uncontrollable rectifying circuit I2 and the uncontrollable rectifying circuit II3 refer to a circuit for rectifying alternating current into direct current through a diode, and refer to a type of rectifying current generally. In the invention, the singlechip 1 preferably adopts STC12C5A60S2 series products. The liquid crystal display module 8 adopts MzLH model 03-12864 product.
The principle of the invention is as follows:
According to the set output voltage, the direct current signal sampling circuit I6 and the direct current signal sampling circuit II7, the singlechip 1 respectively controls the Boost circuit I4 and the Boost circuit II5 to realize different alternating current voltage inputs and the same direct current voltage output.
The singlechip 1 fine-adjusts the effective value of the output voltage of the other Boost circuit II5 by fixing the effective value of the output voltage of one Boost circuit I4, so as to achieve the purposes of automatic current sharing and automatic regulation of random proportion current sharing.
The method comprises the following steps: according to the prompt of the liquid crystal display module 8, the proportion of the output currents I1 and I2 is set through a key 9; when the singlechip 1 samples the currents output by the Boost circuit I4 and the Boost circuit II5, and when the acquired currents do not reach the set value, the singlechip 1 enables the output voltage of the Boost circuit II5 to rise (or fall) within a required range by adjusting PWM output, so that the purpose of outputting the current by the circuit is achieved.
The steps of the multi-path uncontrollable rectifying parallel arbitrary current distribution device are as follows:
the first step: the uncontrollable rectifying circuit I2 and the uncontrollable rectifying circuit II3 are connected to the load 11, and start to operate.
And a second step of: the ratio of output currents I1 to I2 is set to be 1:1 through the adjusting key 9, the Boost circuit I4 and the Boost circuit II5 start to output, the direct current signal sampling circuit I6 and the direct current signal sampling circuit II7 sample voltage and current signals to the singlechip 1, after the direct current signal sampling circuit I6 and the direct current signal sampling circuit II sample voltage and current signals are processed by the singlechip 1, the liquid crystal display module 8 displays the output voltage and the current value respectively, and the singlechip 1 outputs PWM (pulse-width modulation) to control the output voltage of the Boost circuit II5, so that the ratio of the power transmission currents I1 to I2 is 1:1.
If the ratio of the power transmission currents I1 and I2 is set to be 1:2 through the adjusting key 9, the Boost circuit I4 and the Boost circuit II5 start to output, the direct current signal sampling circuit I6 and the direct current signal sampling circuit II7 sample voltage and current signals to the singlechip 1, after the singlechip 1 analyzes and processes the signals, the liquid crystal display module 8 displays the output voltage and the current value respectively, and the singlechip 1 outputs PWM (pulse-width modulation) to control the output voltage of the Boost circuit II5, so that the ratio of the power transmission currents I1 and I2 is 1:2; the other ratios of I1 and I2 are the same. Similarly, boost circuit I4 may also be adjusted.
And a third step of: if the alternating current input sizes of the uncontrollable rectifying circuit I2 and the uncontrollable rectifying circuit II3 are different, the direct current voltage output by the Boost circuit II5 can be adjusted through the singlechip 1, so that the voltages output by the Boost circuit II5 and the Boost circuit I4 are equal, namely, the two paths of current sharing output.
In the sampling process, firstly, the measuring precision is adjusted to the device, the reference unit 10 provides a 3.3V sampling reference voltage by the reference voltage chip LM1117, the 3.3V voltage is sampled by utilizing the AD sampling port of the singlechip, the sampled value obtained by sampling is Uo, then the voltage to be obtained by sampling by the direct current signal sampling circuit is U1, the actual sampled voltage is U2, U2= (U1×3.3V)/Uo, and in addition, the average value is obtained by adopting multiple sampling, so that the sampling precision is greatly improved, and the output current precision is also greatly improved.
The voltage stabilizing or regulating process in the Boost circuit is to detect the output voltage in real time through the singlechip 1, and then automatically regulate the output PWM wave to stabilize the output voltage.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A multi-path uncontrollable rectifying parallel arbitrary current distribution device, comprising: the device comprises a singlechip (1), an uncontrollable rectifying circuit I (2), an uncontrollable rectifying circuit II (3), a Boost circuit I (4), a Boost circuit II (5), a direct current signal sampling circuit I (6), a direct current signal sampling circuit II (7), a liquid crystal display module (8), a key (9) and a reference unit (10);
The output of the uncontrollable rectifying circuit I (2) is connected with the input of the Boost circuit I (4), the output of the uncontrollable rectifying circuit II (3) is connected with the input of the Boost circuit II (5), the outputs of the Boost circuit I (4) and the Boost circuit II (5) are connected with a bus, and the bus is connected with a load (11);
PWM (pulse width modulation) ports of the singlechip (1) are respectively connected with a Boost circuit I (4) and a Boost circuit II (5);
One end of the direct current signal sampling circuit I (6) is connected with the output of the Boost circuit I (4), and the other end of the direct current signal sampling circuit I (6) is respectively connected with the AD port of the singlechip (1);
One end of the direct current signal sampling circuit II (7) is connected with the output of the Boost circuit II (5), and the other end of the direct current signal sampling circuit II (7) is respectively connected with an AD port of the singlechip (1);
The liquid crystal display module (8), the key (9) and the reference unit (10) are connected with the singlechip (1).
2. The multi-path uncontrollable rectifying parallel arbitrary current distribution device according to claim 1, wherein: the Boost circuit I (4) and the Boost circuit II (5) have the same structure, and the direct current signal sampling circuit I (6) and the direct current signal sampling circuit II (7) have the same structure.
3. The multi-path uncontrollable rectifying parallel arbitrary current distribution device according to claim 2, wherein: boost circuit I (4) includes capacitors C1, C2, inductor L, mos, V and diode D; the direct current signal sampling circuit I (6) comprises resistors R1, R2 and R3 and an operational amplifier M;
the positive electrode of the capacitor C1 is connected with the inductor L and the positive electrode of the direct current input, and the negative electrode of the capacitor C1 is connected with the negative electrode of the direct current input;
the other end of the inductor L is respectively connected with the anode of the diode D and the drain electrode of the mos tube V, the grid electrode of the mos tube V is connected with the PWM port of the singlechip (1), and the source electrode of the mos tube V is grounded;
The negative electrode of the diode D is respectively connected with the positive electrode of the capacitor C2 and the resistor R1, the negative electrode of the capacitor C2 is grounded, the other end of the resistor R1 is respectively connected with the AD port of the singlechip (1) and the resistor R2, and the other end of the resistor R2 is grounded; the resistor R3 is connected in series with the cathode of the direct current output, and the input end of the operational amplifier M is connected in parallel with the two sides of the resistor R3; the output end of the operational amplifier M is connected with the AD port of the singlechip (1).
4. The multi-path uncontrollable rectifying parallel arbitrary current distribution device according to claim 2, wherein: the direct current signal sampling circuit I (6) comprises a voltage sampling module and a current sampling module; the voltage sampling module and the current sampling module are connected with the singlechip.
5. The multi-path uncontrollable rectifying parallel arbitrary current distribution device according to claim 1, wherein: the reference cell employs a reference voltage chip LM1117.
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| CN115242059B (en) * | 2022-09-21 | 2023-02-28 | 深圳英集芯科技股份有限公司 | Multi-power-supply parallel current output device and method and electronic equipment |
| CN116404880B (en) * | 2023-04-04 | 2023-12-26 | 北京龙腾云海科技股份有限公司 | Efficient power supply system based on multi-path switch power supply parallel connection |
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| CN203745937U (en) * | 2014-01-15 | 2014-07-30 | 昆明理工大学 | Device for distributing currents of multipath power sources at will |
| CN206149136U (en) * | 2016-10-14 | 2017-05-03 | 昆明理工大学 | One -way DC DC becomes replaceable power's device |
| CN109638890A (en) * | 2019-01-22 | 2019-04-16 | 电子科技大学 | A kind of direct-current micro-grid group system and its Novel layered control method |
| CN112564079A (en) * | 2020-11-27 | 2021-03-26 | 苏州浪潮智能科技有限公司 | Current distribution device and method and electronic equipment |
| CN215733482U (en) * | 2021-05-24 | 2022-02-01 | 云南电力试验研究院(集团)有限公司 | Multi-path uncontrollable rectification parallel connection arbitrary current distribution device |
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