CN109245510B - Starting current suppression circuit, starting current suppression method, control device and equipment - Google Patents
Starting current suppression circuit, starting current suppression method, control device and equipment Download PDFInfo
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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
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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
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Abstract
The invention provides a starting current suppression circuit, a method, a control device and equipment, wherein the starting current suppression circuit comprises: the follow current module supplies power to the control module through a follow current resistor when the main end power supply equipment is initially electrified; the voltage detection module is used for detecting the power supply voltage of the main-end power supply equipment; the control module determines the delay time of the power supply time of the main-end power supply equipment to each circuit module to be supplied relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be supplied, and outputs a control signal to the power supply switch module according to the delay time; and the power supply switch module closes power supply paths between the main-end power supply equipment and the control module and between the main-end power supply equipment and each circuit module to be supplied with power when receiving the control signal, and disconnects the power supply paths between the follow current module and the control module. The invention reduces the complexity of the power-on starting current suppression hardware circuit, saves the cost and realizes the flexible control of the power-on time according to the difference of the power supply voltage.
Description
Technical Field
The invention relates to the technical field of circuit design, in particular to a starting current suppression circuit, a starting current suppression method, a starting current suppression control device and starting current suppression equipment.
Background
In mobile communication applications, the tower control equipment often needs to be cascaded in multiple stages through cables, so that the main-end power supply equipment needs to face loads with different impedances. When the number of the cascade devices is too large, the power supply device at the main end is powered on, so that the starting currents of the slave devices are overlapped according to the number of the cascade devices, and the power supply circuit of the power supply device at the main end is damaged because the power supply circuit cannot bear the too large starting current, so that a current suppression circuit needs to be added to each control device.
In the prior art, a traditional start current suppression circuit is generally realized by a hardware timing slow start circuit, so that the purpose of reducing the start current is achieved. However, when the circuit is used for wide-voltage input, the circuit is complex to implement, the slow start time cannot be adjusted according to voltage changes, and the current-suppressing function with adjustable maximum start current cannot be provided.
Disclosure of Invention
In view of the above, the present invention has been made to provide a starting current suppression circuit, a method, a control device and an apparatus that overcome or at least partially solve the above problems.
In one aspect of the invention, a starting current suppression circuit is provided, which comprises a follow current module, a voltage detection module, a control module and a power supply switch module;
the follow current module is connected with the main end power supply equipment and the control module and used for supplying power to the control module through a follow current resistor when the main end power supply equipment is initially electrified;
the voltage detection module is used for detecting the power supply voltage of the main-end power supply equipment;
the control module is used for determining the delay time of the power supply time of the main-end power supply equipment to each circuit module to be supplied relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be supplied, and outputting a control signal to the power supply switch module according to the delay time;
the power supply switch module is respectively connected with the main-end power supply equipment, the control module and each circuit module to be supplied with power, and is used for closing a power supply path between the main-end power supply equipment and the control module and between the main-end power supply equipment and each circuit module to be supplied with power and disconnecting the power supply path between the follow current module and the control module when receiving the control signal.
Optionally, the power supply switch module includes a voltage driver, a main power supply switch and each sub power supply switch corresponding to each circuit module to be supplied with power one by one, the voltage driver is connected to the control module and the main power supply switch, the main power supply switch is connected to the main power supply device and each sub power supply switch, each sub power supply switch is connected to the control module, the voltage driver drives the main power supply switch to be closed when receiving the first control signal output by the control module, the control module outputs the second control signal to each sub power supply switch in sequence after outputting the first control signal, each sub power supply switch is closed in sequence according to the received second control signal, and the time sequence of each circuit module to be supplied with power is powered on.
Optionally, the follow current module is connected to each to-be-supplied circuit module through a one-to-one corresponding sub power supply switch, and is configured to supply power to the to-be-supplied circuit module in which the corresponding sub power supply switch is in a closed state through a follow current resistor when the main-end power supply device is initially powered on.
Optionally, the voltage detection module includes a resistor and an analog-to-digital converter ADC, the resistor is connected to the input end of the freewheeling module and the input end of the ADC, and the output end of the ADC is connected to the control module.
Optionally, the freewheeling module includes a freewheeling resistor and a dc-dc circuit, where the dc-dc circuit is connected to the output terminal of the freewheeling resistor and the power supply interface of the control module, and is configured to convert the dc power output by the freewheeling resistor into the dc power required by the control module.
In another aspect of the present invention, there is provided a startup current suppression method, including:
acquiring power supply voltage of main-end power supply equipment, wherein the power supply voltage is obtained after follow current processing is carried out through a preset follow current module;
determining the delay time of the power supply time of the main-end power supply equipment to each circuit module to be powered relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be powered;
and carrying out power-on starting control on each circuit module to be powered according to the delay time.
Optionally, the performing power-on start control on each circuit module to be powered according to the delay time includes:
determining the power supply time of the main-end power supply equipment to each circuit module to be supplied with power according to the delay time;
and when the power supply time is reached, generating a time sequence control signal so as to control the power-on time sequence of each circuit module to be supplied with power according to the time sequence control signal.
In still another aspect of the present invention, there is provided a control apparatus including:
the device comprises an acquisition unit, a control unit and a processing unit, wherein the acquisition unit is used for acquiring the power supply voltage of main-end power supply equipment, and the power supply voltage is the power supply voltage after the follow current processing is carried out through a preset follow current module;
the computing unit is used for determining the delay time of the power supply time of the main-end power supply equipment to each circuit module to be powered relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be powered;
and the control unit is used for carrying out power-on starting control on each circuit module to be powered according to the delay time.
Optionally, the control unit is specifically configured to determine, according to the delay time, a power supply time of the master power supply device to each circuit module to be supplied with power; and when the power supply time is reached, generating a time sequence control signal so as to control the power-on time sequence of each circuit module to be supplied with power according to the time sequence control signal.
In addition, the invention also provides equipment which comprises a multi-stage circuit module to be powered and the starting current suppression circuit.
According to the starting current suppression circuit, the starting current suppression method, the starting current suppression control device and the starting current suppression equipment, the control module is supplied with power by utilizing the power-on follow current, then the control module resource flexibly controls the power-on time according to different power supply voltages, the current suppression function with adjustable maximum starting current is realized by delaying power-on starting control, the complexity of a power-on starting current suppression hardware circuit is reduced, and the cost is saved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a start-up current suppression circuit according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a start-up current suppression circuit according to another embodiment of the invention;
FIG. 3 is a flowchart of a method for suppressing a start-up current according to an embodiment of the present invention;
fig. 4 schematically shows a structural diagram of a control device of an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
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.
The invention provides a starting current suppression circuit which can be widely applied to equipment and the field with strict limitation on electrifying current so as to reduce the complexity of the traditional electrifying slow start hardware circuit, reduce the cost and more flexibly realize the starting current suppression function.
Fig. 1 is a schematic structural diagram of a start-up current suppression circuit according to an embodiment of the present invention. Referring to fig. 1, the start-up current suppression circuit according to the embodiment of the present invention includes a freewheeling module 10, a voltage detection module 20, a control module 30, and a power supply switch module 40, where the control module 30 may be implemented by using a low-power consumption MCU controller. In one embodiment, this may be accomplished using an MCU controller that is native to the device. The invention separates the hardware timing circuit of the power-on slow start circuit in the prior art, uses the processor to control, reduces the circuit complexity and reduces the circuit cost.
Specifically, the freewheeling module 10 is connected to the current main-end power supply device and the control module 30, respectively, and is configured to supply power to the control module 30 through a freewheeling resistor when the main-end power supply device is initially powered on.
And a voltage detection module 20, configured to detect a power supply voltage of the main-end power supply device.
The control module 30 is configured to determine, according to the power supply voltage detected by the voltage detection module 20 and the impedance of each to-be-supplied circuit module, a delay time of a power supply time of the main-end power supply device to each to-be-supplied circuit module relative to an initial power-on time, and output a control signal to the power supply switch module 40 according to the determined delay time, so that the power supply switch module 40 performs corresponding switch control according to the control signal.
And the power supply switch module 40 is connected with the main-end power supply device, the control module 30 and each circuit module to be supplied with power respectively, and is used for closing a power supply path between the main-end power supply device and the control module 30 and each circuit module to be supplied with power and disconnecting a power supply path between the follow current module 10 and the control module 30 when receiving the control signal sent by the control module 30.
In the embodiment of the present invention, the control module 30 can flexibly control the delay time according to different power supply voltages of the main-end power supply device, further implement flexible control of the power-on current, and provide a current-suppressing function with adjustable maximum starting current. The invention not only realizes the adjustment of the slow start time according to the voltage change, but also can be suitable for the application scene of wide-voltage input.
According to the starting current suppression circuit provided by the embodiment of the invention, the control module is supplied with power by utilizing the power-on follow current, then the control module resource realizes flexible control of power-on time according to different power supply voltages, and the current suppression function with adjustable maximum starting current is realized by delaying power-on starting control, so that the complexity of a power-on starting current suppression hardware circuit is reduced, and the cost is saved.
Fig. 2 is a circuit diagram of a start-up current suppression circuit according to another embodiment of the present invention. Referring to fig. 2, in the present embodiment, the power supply switch module 40 includes a voltage driver DR1, a main power supply switch SW, and sub power supply switches SW1 to SW n corresponding to the power supply circuit modules, the voltage driver DR is connected to the control module 30 and the main power supply switch SW, the main power supply switch SW is respectively connected to the power supply input end of the main power supply device and the sub power supply switches SW1 to SW n, the sub power supply switches SW1 to SW n are respectively connected to the control module 30, the voltage driver SW drives the main power supply switch SW to be turned on when receiving a first control signal output by the control module 30, the control module 30 outputs a first control signal and then sequentially outputs second control signals to the sub power supply switches SW1 to SW n, and the sub power supply switches SW1 to SW n are sequentially turned on according to the received second control signal, and the sequential electrification of each circuit module to be powered is realized.
Further, the freewheeling module 10 is connected to each to-be-powered circuit module through the one-to-one corresponding sub power supply switches SW1 to SW n, and is configured to supply power to the to-be-powered circuit module whose corresponding sub power supply switch is in a closed state through the freewheeling resistor R1 when the main-end power supply device is initially powered on.
In this embodiment, the freewheeling module 10 may be connected to each to-be-powered circuit module through the sub power switches SW1 to SW n corresponding to one, each sub power switch is in an off state in an initial state, when the control module 30, that is, the MCU processor, is powered on, the MCU processor may directly adopt the freewheeling resistor R1 to supply power to normally operate, at this time, on the premise that it is ensured that the power-on current will not cause overcurrent damage to the freewheeling resistor R1, the control module 30 may control any one or more sub power switches to be in a closed state, so that the power supply charges each to-be-powered circuit module at the rear stage through the freewheeling power R1, and power-on is completed within the specified first power-on time.
Further, as shown in fig. 2, the voltage detection module 20 includes a resistor R2 and an analog-to-digital converter ADC, the resistor R2 is connected to the input terminal of the flywheel module 10 and the input terminal of the ADC, respectively, and the output terminal of the ADC is connected to the control module.
Further, as shown in fig. 2, the freewheel module 10 includes a freewheel resistor R1 and a DC-DC converter circuit PC1, where the DC-DC converter circuit DC-DC connects the output terminal of the freewheel resistor R1 and the power supply interface VCC _ MCU of the control module 30, and is configured to convert the DC power output by the freewheel resistor R1 into the DC power required by the control module 30.
In this embodiment, the control module 30, that is, the MCU processor, obtains the current power supply voltage of the main power supply device through the resistor R2 and the ADC (without limitation to ADC), and then calculates the time for the SW main power supply switch to be turned on in a delayed manner, the MCU processor turns on the main power supply switch SW through the DR1 voltage driver, bypasses the R1, so that the current directly supplies power to the circuit modules to be supplied at the rear stage through the SW, and the MCU processor controls the power-on timings of the SW1 to SW n for the circuit modules to be supplied at the rear stage, so as to complete the entire power-on process.
The starting current suppression circuit provided by the embodiment of the invention at least has the following beneficial effects:
the original slow start timing circuit is stripped, the circuit complexity is reduced, and the circuit cost is reduced.
By collecting the supply voltage, the appropriate delay power-on time is calculated for different supply voltages.
For a large load circuit, subsequent power-on sequence control is provided to reduce the starting current to the maximum extent.
Fig. 3 is a flowchart of a startup current suppression method according to an embodiment of the invention. Referring to fig. 3, the starting current suppression method according to the embodiment of the present invention specifically includes the following steps:
and S11, obtaining the power supply voltage of the main terminal power supply equipment, wherein the power supply voltage is the power supply voltage after the follow current processing is carried out through a preset follow current module.
And S12, determining the delay time of the power supply time of the main terminal power supply equipment to each circuit module to be powered relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be powered.
And S13, performing power-on starting control on each circuit module to be powered according to the delay time.
In this embodiment of the present invention, the performing power-on start control on each to-be-powered circuit module according to the delay time further includes the following steps:
determining the power supply time of the main-end power supply equipment to each circuit module to be supplied with power according to the delay time;
and when the power supply time is reached, generating a time sequence control signal so as to control the power-on time sequence of each circuit module to be supplied with power according to the time sequence control signal.
The starting current suppression method provided by the embodiment of the invention can flexibly control the delay time according to different power supply voltages of the main-end power supply equipment, further realize flexible control on the power-on current and provide a current suppression function with adjustable maximum starting current. The invention not only realizes the adjustment of the slow start time according to the voltage change, but also can be suitable for the application scene of wide-voltage input.
For simplicity of explanation, the method embodiments are described as a series of acts or combinations, but those skilled in the art will appreciate that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently with other steps in accordance with the embodiments of the invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Fig. 4 schematically shows a structural diagram of a control device of an embodiment of the present invention. The control device can be realized by adopting a low-power consumption MCU controller. In one embodiment, this may be accomplished using an MCU controller that is native to the device. Referring to fig. 4, the control apparatus according to the embodiment of the present invention specifically includes an obtaining unit 301, a calculating unit 302, and a control unit 303, where:
an obtaining unit 301, configured to obtain a power supply voltage of a main-end power supply device, where the power supply voltage is obtained after a preset freewheeling module performs freewheeling processing;
a calculating unit 302, configured to determine, according to the power supply voltage and the impedance of each to-be-supplied circuit module, a delay time of a power supply time of the main-end power supply device to each to-be-supplied circuit module relative to an initial power-on time;
and the control unit 303 is configured to perform power-on start control on each circuit module to be powered according to the delay time.
Further, the control unit is specifically configured to determine, according to the delay time, a power supply time of the master power supply device to each circuit module to be supplied with power; and when the power supply time is reached, generating a time sequence control signal so as to control the power-on time sequence of each circuit module to be supplied with power according to the time sequence control signal.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In addition, the invention also provides equipment which comprises a multi-stage circuit module to be powered and the starting current suppression circuit in any embodiment.
The starting current suppression circuit in the present embodiment is shown in fig. 1 or fig. 2, and includes a freewheeling module 10, a voltage detection module 20, a control module 30, and a power supply switch module 40.
The device provided by this embodiment may be an on-tower control device in mobile communication applications, and the multi-stage to-be-powered circuit module included in the device is a cascade device of the on-tower control device.
The device provided by the embodiment of the invention supplies power to the control module by utilizing the power-on follow current, then realizes flexible control of power-on time by the control module resource according to different power supply voltages, realizes the current suppression function with adjustable maximum starting current by delaying power-on starting control, reduces the complexity of a power-on starting current suppression hardware circuit, and saves the cost.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method for suppressing a start current as described above.
In this embodiment, the module/unit integrated with the control device may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
Those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A starting current suppression circuit is characterized by comprising a follow current module, a voltage detection module, a control module and a power supply switch module;
the follow current module is connected with the main end power supply equipment and the control module and used for supplying power to the control module through a follow current resistor when the main end power supply equipment is initially electrified;
the voltage detection module is used for detecting the power supply voltage of the main-end power supply equipment;
the control module is used for determining the delay time of the power supply time of the main-end power supply equipment to each circuit module to be supplied relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be supplied, and outputting a control signal to the power supply switch module according to the delay time;
the power supply switch module is respectively connected with the main-end power supply equipment, the control module and each circuit module to be supplied with power and is used for closing a power supply path between the main-end power supply equipment and the control module and between the main-end power supply equipment and each circuit module to be supplied with power and disconnecting a power supply path between the follow current module and the control module when receiving the control signal;
the power supply equipment comprises a control module, a current follow resistor, a current follow module and a main end power supply device, wherein each sub power supply switch is connected with the control module respectively, the current follow module is connected with each circuit module to be supplied with power through the sub power supply switches corresponding to one, and the current follow module is used for supplying power to the circuit module to be supplied with power, of which the corresponding sub power supply switch is in a closed state;
wherein,the power supply switch module further comprises a voltage driver and a main power supply switch, the voltage driver is connected with the control module and the main power supply switch, the main power supply switch is connected with the main end power supply equipment and the sub power supply switches respectively, the voltage driver drives the main power supply switch to be closed when receiving a first control signal output by the control module, the control module outputs second control signals to the sub power supply switches in sequence after outputting the first control signal, the sub power supply switches are closed in sequence according to the received second control signals, and the time sequence of the power supply circuit module is realized to be stand byAnd (4) electricity.
2. The startup current suppression circuit according to claim 1, wherein the voltage detection module comprises a resistor and an analog-to-digital converter (ADC), the resistor is connected to an input terminal of the freewheel module and an input terminal of the ADC, and an output terminal of the ADC is connected to the control module.
3. The start-up current suppression circuit according to claim 1, wherein the freewheeling module comprises a freewheeling resistor and a dc-to-dc circuit, and the dc-to-dc circuit is connected between the output terminal of the freewheeling resistor and the power supply interface of the control module, and is configured to convert the dc power output by the freewheeling resistor into the dc power required by the control module.
4. A startup current suppression method, characterized by comprising:
acquiring power supply voltage of main-end power supply equipment, wherein the power supply voltage is obtained after follow current processing is carried out through a preset follow current module; the follow current module is used for supplying power to the circuit module to be powered, of which the corresponding sub power supply switch is in a closed state, through the follow current resistor when the main end power supply equipment is initially powered on;
determining the delay time of the power supply time of the main-end power supply equipment to each circuit module to be powered relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be powered;
carrying out power-on starting control on each circuit module to be powered according to the delay time;
wherein, the power-on starting control of each circuit module to be powered according to the delay time comprises:
determining the power supply time of the main-end power supply equipment to each circuit module to be supplied with power according to the delay time;
and when the power supply time is reached, generating a time sequence control signal so as to control the power-on time sequence of each circuit module to be supplied with power according to the time sequence control signal.
5. A control device, comprising:
the device comprises an acquisition unit, a control unit and a processing unit, wherein the acquisition unit is used for acquiring the power supply voltage of main-end power supply equipment, and the power supply voltage is the power supply voltage after the follow current processing is carried out through a preset follow current module; the follow current module is also used for supplying power to the power supply circuit module with the corresponding sub power supply switch in a closed state through the follow current resistor when the main end power supply equipment is initially electrified;
the computing unit is used for determining the delay time of the power supply time of the main-end power supply equipment to each circuit module to be powered relative to the initial power-on time according to the power supply voltage and the impedance of each circuit module to be powered;
the control unit is used for carrying out power-on starting control on each circuit module to be powered according to the delay time;
the control unit is specifically configured to determine, according to the delay time, a power supply time of the master power supply device to each circuit module to be supplied with power; and when the power supply time is reached, generating a time sequence control signal so as to control the power-on time sequence of each circuit module to be supplied with power according to the time sequence control signal.
6. An apparatus comprising a plurality of stages of circuit blocks to be powered and a start-up current suppression circuit as claimed in any one of claims 1 to 3.
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| CN201811093970.5A CN109245510B (en) | 2018-09-19 | 2018-09-19 | Starting current suppression circuit, starting current suppression method, control device and equipment |
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| CN201811093970.5A CN109245510B (en) | 2018-09-19 | 2018-09-19 | Starting current suppression circuit, starting current suppression method, control device and equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2655309Y (en) * | 2003-07-16 | 2004-11-10 | 华为技术有限公司 | Power supply time sequence controlling circuit |
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| CN108519806A (en) * | 2018-04-26 | 2018-09-11 | 北京比特大陆科技有限公司 | A kind of chip controls method, apparatus, computer equipment and computer storage media |
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| CN2655309Y (en) * | 2003-07-16 | 2004-11-10 | 华为技术有限公司 | Power supply time sequence controlling circuit |
| CN1601412A (en) * | 2003-09-25 | 2005-03-30 | 华为技术有限公司 | Method and circuit for controlling time sequence of power supplying |
| CN101789682A (en) * | 2010-02-10 | 2010-07-28 | 福建星网锐捷网络有限公司 | Multiple output power supply time sequence control device and method |
| CN202190258U (en) * | 2011-03-24 | 2012-04-11 | 北京傲天动联技术有限公司 | Power sequence control circuit |
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