CN109617544A - A kind of novel electrifying timing sequence control equipment, system and method - Google Patents
A kind of novel electrifying timing sequence control equipment, system and method Download PDFInfo
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- CN109617544A CN109617544A CN201811472728.9A CN201811472728A CN109617544A CN 109617544 A CN109617544 A CN 109617544A CN 201811472728 A CN201811472728 A CN 201811472728A CN 109617544 A CN109617544 A CN 109617544A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
Abstract
The application discloses a kind of control of novel electrifying timing sequence equipment, system and method, including power supply and makes energy control module；Making energy control module includes signal input part and signal output end；The first adjustable resistance, capacitor, triode, the second adjustable resistance and phase inverter are equipped between signal input part and signal output end；Equipment provided by the present application, system and method are by using triode promotion signal voltage, and have the function that reduce energy consumption, stabilization signal by the phase inverter that two kinds of mosfet transistors are composed, and the equipment of the application makes too low control voltage still can be controlled chip independent of conventional power source in terms of multiple power supplies electrifying timing sequence control with the enable pin of driving chip and be met the requirement for accurately powering on order.In addition, the design cycle of hardware power electrifying timing sequence control is also simplified, to improve working efficiency.
Description
Technical field
This application involves machine vision imaging equipment research and development technology fields more particularly to a kind of novel electrifying timing sequence control to set
Standby, system and method.
Background technique
In the external circuit design of hardware, power supply timing Design is essential link.Existing power supply timing Design,
The RC delay usually generated by power supply timing controller or simple resistance capacitance.If using the core of plurality of specifications
Piece needs additionally to increase chip cost；And hold during easily leading to timing control only with simple resistance capacitance design circuit
Vulnerable to interference and electrifying timing sequence can not be accurately controlled.
Currently, the equipment controlled in the prior art for electrifying timing sequence, circuit design itself is complex, can lead first
Causing equipment, operating power consumption is high during the work time, reduces system working efficiency, increases cost；On the other hand, when the control of upper level
When brownout processed, existing equipment may cause can not drive part chip enable pin, and then not can guarantee the company powered on
Continuous property, causes system stability lower.
Summary of the invention
The application provides a kind of novel electrifying timing sequence control equipment, system and method, is set with solving circuit in the prior art
Meter is complicated, energy consumption is high, stability difference problem, and the application utilizes triode and the characteristic of MOSFET, by the control of low pressure
Signal processed is converted to can be by the control signal that chip enable pin receives, and has had both anti-interference and low-power consumption advantage.Make
Power supply chip can uncontrolled signal voltage and enable pin limitation, electrifying timing sequence as requested, completion successively power on,
Or the combination of any electrifying timing sequence.
Equipment is controlled this application provides a kind of novel electrifying timing sequence, including power supply and makes energy control module；Wherein,
It is described that energy control module is made to include signal input part and signal output end；The signal input part is for receiving one
Grade control signal or supply voltage, the signal output end will be for that will make can control signal or control voltage output to next stage electricity
The enable pin of source chip；
The first adjustable resistance is equipped between the signal input part and the signal output end, capacitor, triode, second can
Adjust resistance and phase inverter；Wherein, the capacitor, first adjustable resistance, the grid of the triode and the triode
Emitter, which is sequentially connected, constitutes timing control circuit, one end ground connection of the capacitor；The timing control circuit is for controlling
Electric duration；Second adjustable resistance, the phase inverter and the power supply are sequentially connected the enabled driving circuit of composition, described
The collector of triode is connected with one end of second adjustable resistance；The enabled driving circuit makes can control for generating
Signal or control voltage；
The signal input part is connected with one end of first adjustable resistance；The output end of the phase inverter is connected to institute
State signal output end.
Optionally, the phase inverter includes a p-type mosfet transistor being connected in parallel and a N-type MOSFET crystal
Pipe；One end of second adjustable resistance grid with the p-type mosfet transistor, the N-type mosfet transistor simultaneously
Connection；It is defeated that the drain electrode of the p-type mosfet transistor and the source electrode of the N-type mosfet transistor are commonly connected to the signal
Outlet.
Optionally, the triode selects NPN type triode, and conducting voltage Vbe is 0.5V~1V.
Optionally, the resistance value of first adjustable resistance is 1k Ω~2k Ω；The resistance value of second adjustable resistance is 8k
Ω~12k Ω；The power supply voltage is 5V.
Optionally, output control signal or voltage between the signal input part and the signal output end.
Present invention also provides a kind of novel electrifying timing sequence control system, including it is multiple described herein novel when powering on
Sequence controls equipment；All novel electrifying timing sequence control equipment are connected in series；Novel electrifying timing sequence control described in any two
A power supply chip is equipped between control equipment；
The novel electrifying timing sequence control equipment is used to receive the control signal or supply voltage of upper level output, and generates
Make to can control signal or controls the enable pin of voltage output to power supply chip；The power supply chip, which is used for basis, to be made to can control letter
Number or control voltage to next stage export control signal or supply voltage.
Optionally, the power supply chip selects LDO chip or DC-DC chip.
Present invention also provides a kind of novel power-on time sequence control methods, comprising:
Obtain the control signal or supply voltage of previous level power supply or the output of external logic device；
Electrifying timing sequence control is carried out to control signal or supply voltage using equipment provided by the present application, output makes can control
Signal controls voltage to power supply chip；
By the downward primary power source output control signal of power supply chip or supply voltage.
From the above technical scheme, this application provides a kind of novel electrifying timing sequences to control equipment, system and method, leads to
It crosses using triode promotion signal voltage, and reduction energy is reached by the phase inverter that two kinds of mosfet transistors are composed
The effect of consumption, stabilization signal, and the equipment of the application, system and method make too low control voltage still can be with driving chip
Enable pin, chip can be controlled independent of conventional power source in terms of multiple power supplies electrifying timing sequence control and is met accurate
Power on the requirement of order.The design cycle for simplifying the control of hardware power electrifying timing sequence, to improve working efficiency.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the composition schematic diagram that a kind of novel electrifying timing sequence provided by the present application controls equipment；
Fig. 2 is the working principle diagram that a kind of novel electrifying timing sequence provided by the present application controls equipment；
Fig. 3 is a kind of composition figure of novel electrifying timing sequence control system provided by the present application；
Fig. 4 is a kind of flow chart of novel power-on time sequence control method provided by the present application.
Specific embodiment
Referring to Fig. 1, for a kind of composition schematic diagram of novel electrifying timing sequence control equipment provided by the present application；
As shown in Figure 1, the embodiment of the present application provides a kind of novel electrifying timing sequence control equipment, including power supply VCC
With make energy control module；Wherein, VCC is the supply voltage of circuit, in the present embodiment, by changing the value of supply voltage VCC,
It is adjustable to make energy control module, so that it is exported the value that threshold voltage is nearly identical to VCC, and it is lower negligible only to generate license
Power consumption；Energy control module is set to execute relevant electrifying timing sequence control under the driving of power supply VCC and to driving
The enable pin of chip is driven.
Specifically, described make energy control module include signal input part 1 and signal output end 2；The signal input part 1 is used
In receiving upper level control signal or supply voltage, usually it is connect with the chip output of upper level, the signal output end 2
For that will make to can control signal or control the enable pin of voltage output to next stage power supply chip；
The first adjustable resistance R1, capacitor C1, triode are equipped between the signal input part 1 and the signal output end 2
T1, the second adjustable resistance R2 and phase inverter 3；Wherein, the capacitor C1, the first adjustable resistance R1, the triode T1's
The emitter of grid and the triode T1, which are sequentially connected, constitutes timing control circuit, and one end of the capacitor C1 is grounded (in figure
It is not shown)；The timing control circuit powers on duration for controlling；The second adjustable resistance R2, the phase inverter 3 and described
Power supply VCC is sequentially connected the enabled driving circuit of composition, the collector of the triode T1 and the second adjustable resistance R2
One end be connected；The enabled driving circuit makes can control signal or control voltage for generating；
Further, in the present embodiment, the resistance in timing control circuit, the specification of capacitor element is adjustable, can pass through
Resistance value, capacitance are adjusted to obtain the effect of different delays time to control timing；Preferably, the resistance of the first adjustable resistance R1
Being worth range can be selected between 1k Ω~2k Ω；Since capacitor is energy storage device, can be held after controlling voltage and limiting electric current by R1
Begin to be that capacitor C1 charges, the capacitance of C1 is bigger, and the charging time is longer, and then can form power on delay in circuit；It is optional
, the capacitor C1 in the present embodiment can also be not connected to.
Meanwhile the main function of the enabled driving circuit in the present embodiment is, when the control signal of input is (especially lower
Pressure controling signal) from the base terminal of triode input, and by collector realization input opposite logic with base stage after,
Enabled driving circuit can by supply voltage output supply voltage, will control signal boost to meeting power supply chip enable pin
Voltage requirement can control the enable pin of power supply chip to correctly control electrifying timing sequence.
In addition, the conducting situation of the triode T1 used in the present embodiment has decided on whether the enable pin to power supply chip
Output voltage, for example, being in when the base terminal voltage of triode T1 is lower than the conducting voltage Vbe of PN junction in triode T1
Off state, it is 0V that the output for eventually leading to enabled driving circuit, which enables voltage value,；Conversely, working as the base terminal voltage of triode T1
More than or equal to when the conducting voltage Vbe of PN junction, triode T1 conducting makes the enabled voltage value power supply electricity of output in triode T1
Source voltage.
The signal input part 1 is connected with one end of the first adjustable resistance R1；The output end of the phase inverter 3 connects
To the signal output end 2.
In the present embodiment, the effect of phase inverter 3 are as follows: to control signal logic converted herein, substantially by
Mosfet transistor (Metal-Oxide-Semiconductor Field-Effect Transi stor, MOSFET metal-oxygen
Change layer semiconductcor field effect transistor) it constitutes；In a kind of possible embodiments, the phase inverter includes a P being connected in parallel
Type mosfet transistor and a N-type mosfet transistor；One end of the second adjustable resistance R2 simultaneously with the p-type
The grid connection of mosfet transistor, the N-type mosfet transistor；The drain electrode and the N-type of the p-type mosfet transistor
The source electrode of mosfet transistor is commonly connected to the signal output end.Two kinds of mosfet transistors combine the phase inverter 3 to be formed,
Have the characteristics that only just to have a little energy consumption when input signal changes, meanwhile, in the base of an original mosfet transistor
A reversed mosfet transistor is increased on plinth, so that the voltage that " complementation " is constituted between two transistor judges relationship,
Therefore more stability.
From the above technical scheme, the working principle of equipment provided by the present application can be illustrated by Fig. 2:
It referring to fig. 2, is a kind of working principle diagram of novel electrifying timing sequence control equipment provided by the present application；
As shown in Figure 2, the equipment in the present embodiment in use, receives control control signal V_ in input terminal
Control, and enabled voltage V_EN is exported in output end.Assuming that when the V_control of input is lower (0V-0.5V), three poles
The base terminal input value of pipe T1 is lower and is lower than the conducting voltage Vbe of PN junction, therefore triode T1 is in off state.At this point, several
Without electric current by the second adjustable resistance R2, therefore the collector voltage of triode T1 is equal to power supply voltage VCC.And three
The collector of pole pipe T1 and two mosfet transistor grids of phase inverter 3 are directly connected to, therefore transistor T2 and transistor T3
Grid voltage Vg2, Vg3 be power supply voltage VCC, at this time the source voltage Vs2 of transistor T2 be power supply voltage
VCC；Therefore by Rule of judgment Vg2-Vs2 < Vth2 it is found that p-type MOSFET threshold voltage vt h2 is negative value, transistor T2 herein
It is in an off state；The source level of transistor T3 is connected with the drain electrode of transistor T2, therefore transistor T3 source voltage Vs3 is almost etc.
In the threshold voltage vt h2 of transistor T2, by Rule of judgment Vg3-Vs3 > Vth3 it is found that N-type MOSFET threshold voltage herein
Vth3 is positive value, and transistor T3 is in the open state；It can be seen from the above, under this condition, the enabled voltage of output is 0V；
When the V_control of input is higher (0.5V or more), defined herein for high range, it should be appreciated that
The base terminal input value that can satisfy triode T1 is higher than the conducting voltage Vbe of PN junction, so that triode T1 is in the conductive state
Value.At this point, electric current is by the second adjustable resistance R2, so that the collector voltage of triode T1 connects since triode T1 is connected
Closely it is down to 0V (being equivalent to ground connection).And the collector of triode T1 and two mosfet transistor grids of phase inverter 3 directly connect
It connects, therefore the grid voltage of transistor T2 and transistor T3 Vg2, Vg3 0V, at this point, the grid voltage Vg2 of transistor T2 is enough
Less than source voltage Vs2 (power supply voltage VCC)；Therefore by Rule of judgment Vg2-Vs2 > Vth2 it is found that p-type herein
MOSFET threshold voltage vt h2 is positive value, and transistor T2 is in the open state；The drain electrode of the source level and transistor T2 of transistor T3
It is connected, therefore transistor T3 source voltage Vs3 is no better than the threshold voltage vt h2 of transistor T2, by Rule of judgment Vg3-Vs3
For < Vth3 it is found that N-type MOSFET threshold voltage vt h3 is negative value herein, transistor T3 is in an off state；It can be seen from the above, should
Under the conditions of, the enabled voltage of output is power supply voltage VCC；It is enabled upper level control signal driving is thus reached, control
The purpose of timing processed.
Optionally, the triode T1 selects NPN type triode, and conducting voltage Vbe is 0.5V~1V.Due to leading for PN junction
The pressure that is powered Vbe is the build-in attribute of triode, therefore can regulate and control Vbe by using the NPN type triode of different size, into
And select more suitable input control signal range, it is considered that, input voltage is greater than conducting voltage in the model of 0.5V to 1V
Belong to higher input value when enclosing.
Optionally, the resistance value of the first adjustable resistance R1 is 1k Ω~2k Ω, by adjusting the first adjustable resistance R1's
The speed of resistance value adjustable condenser charge and discharge, and then adjust the time of power on delay；The resistance value of the second adjustable resistance R2 is
8k Ω~12k Ω, 3 grid voltage of phase inverter is adjusted in the resistance value by adjusting the second adjustable resistance R2, to obtain wanting control
The voltage output value of system；The power supply voltage VCC is 5V.
Optionally, output control signal or voltage between the signal input part and the signal output end.The present embodiment
The equipment of offer can be not only used for powering on the control signal that the logical devices such as upper level power supply chip or FPGA issue
Timing control, for supply voltage also achievable timing control.
From the above technical scheme, the embodiment of the present application provides a kind of novel electrifying timing sequence control equipment, including supplies
Power supply and make energy control module；Wherein, described that energy control module is made to include signal input part and signal output end；The signal
Input terminal is for receiving upper level control signal or supply voltage, and the signal output end will be for that will make to can control signal or control
Voltage output to next stage power supply chip enable pin；First is equipped between the signal input part and the signal output end
Adjustable resistance, capacitor, triode, the second adjustable resistance and phase inverter；Wherein, the capacitor, first adjustable resistance are described
The emitter of the grid of triode and the triode, which is sequentially connected, constitutes timing control circuit, one end ground connection of the capacitor；
The timing control circuit powers on duration for controlling；Second adjustable resistance, the phase inverter and the power supply according to
Secondary to connect and compose enabled driving circuit, the collector of the triode is connected with one end of second adjustable resistance；It is described
Enabled driving circuit makes can control signal or control voltage for generating；The signal input part and first adjustable resistance
One end is connected；The output end of the phase inverter is connected to the signal output end.The application is by using triode promotion signal
Voltage, and have the function that reduce energy consumption, stabilization signal by the phase inverter that two kinds of mosfet transistors are composed, and
The equipment of the application control too low control voltage still can with the enable pin of driving chip in multiple power supplies electrifying timing sequence
Aspect can control chip independent of conventional power source and meet the requirement for accurately powering on order.Hardware power is simplified to power on
The design cycle of timing control, to improve working efficiency.
It is a kind of composition figure of novel electrifying timing sequence control system provided by the present application referring to Fig. 3；
From the figure 3, it may be seen that present invention also provides a kind of novel electrifying timing sequence control system, including it is multiple provided by the present application
Novel electrifying timing sequence controls equipment；All novel electrifying timing sequence control equipment are connected in series；It is novel described in any two
Electrifying timing sequence, which controls, is equipped with a power supply chip between equipment；
The novel electrifying timing sequence control equipment is used to receive the control signal or supply voltage of upper level output, and generates
Make to can control signal or controls the enable pin of voltage output to power supply chip；The power supply chip, which is used for basis, to be made to can control letter
Number or control voltage to next stage export control signal or supply voltage.
The system of the application can be implemented in successively control using power supply chip of the equipment above-mentioned for a variety of different sizes
Program process when electric, by taking a kind of control of Sony's imager chip electrifying timing sequence as an example, it is assumed that first when upper level electric power output voltage 1.2V
The equipment generation for first passing through the application makes to can control signal, inputs to the power supply chip of 1.2V output voltage, when this power supply chip
After powering on, this system is driven with its 1.2V output voltage, generating makes can control the power supply chip for generating 1.8V output voltage.With
This analogizes, and after 1.8V power supply chip powers on, is driving this system with its 1.8V output voltage, generation makes to can control generation
The power supply chip of 3.3V output voltage.As it can be seen that system provided by the present application can improve output voltage step by step, successively controlled to reach
The purpose of electrifying timing sequence processed.
Optionally, the power supply chip selects LDO chip or DC-DC chip.The advantages of DC-DC chip be it is high-efficient, can
It is small to export high current, quiescent current.DC-DC chip is a kind of compact power supply switch module newly developed, it is using micro-
Electronic technology is assembled integrally small-sized surface mount integrated circuit with miniature electronic component and constitutes.DC-DC chip makes
Shorten the lead time with simplified power circuit design is conducive to, realizes optimal parameter etc., can be widely applied to all kinds of digital instruments
In intelligence instrument.
As shown from the above technical solution, system provided by the present application is by using triode promotion signal voltage, Yi Jitong
It crosses the phase inverter that two kinds of mosfet transistors are composed to have the function that reduce energy consumption, stabilization signal, and the application's is
System, can not in terms of multiple power supplies electrifying timing sequence control so that too low control voltage still can be with the enable pin of driving chip
Chip is controlled dependent on conventional power source and meets the accurate requirement for powering on order.Simplify the control of hardware power electrifying timing sequence
Design cycle, to improve working efficiency.
It referring to fig. 4, is a kind of flow chart of novel power-on time sequence control method provided by the present application；
As shown in Figure 4, present invention also provides a kind of novel power-on time sequence control methods, comprising:
S1: the control signal or supply voltage of previous level power supply or the output of external logic device are obtained；
S2: electrifying timing sequence control is carried out to control signal or supply voltage using equipment provided by the present application, output is enabled
Signal or control voltage are controlled to power supply chip；
S3: by the downward primary power source output control signal of power supply chip or supply voltage.
As shown from the above technical solution, the embodiment of the present application provides a kind of novel power-on time sequence control method；The application
The method of offer is by using triode promotion signal voltage, and the phase inverter being composed by two kinds of mosfet transistors
Have the function that reduce energy consumption, stabilization signal, and the present processes make too low control voltage still can be with driving chip
Enable pin, chip can be controlled independent of conventional power source in terms of multiple power supplies electrifying timing sequence control and is met accurate
Power on the requirement of order.The design cycle for simplifying the control of hardware power electrifying timing sequence, to improve working efficiency.
Field technical staff after considering the specification and implementing the invention disclosed here, will readily occur to of the invention other
Embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Adaptive change follow general principle of the invention and including the undocumented common knowledge in the art of the present invention or
Conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following power
Benefit requires to point out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (8)
1. a kind of novel electrifying timing sequence controls equipment, which is characterized in that including power supply and make energy control module；Wherein,
It is described that energy control module is made to include signal input part and signal output end；The signal input part is for receiving upper level control
Signal or supply voltage processed, the signal output end will be for that will make can control signal or control voltage output to next level power supply core
The enable pin of piece；
The first adjustable resistance, capacitor, triode, the second adjustable electric are equipped between the signal input part and the signal output end
Resistance and phase inverter；Wherein, the capacitor, first adjustable resistance, the transmitting of the grid of the triode and the triode
Pole, which is sequentially connected, constitutes timing control circuit, one end ground connection of the capacitor；When the timing control circuit is powered on for controlling
It is long；Second adjustable resistance, the phase inverter and the power supply are sequentially connected the enabled driving circuit of composition, three pole
The collector of pipe is connected with one end of second adjustable resistance；The enabled driving circuit makes to can control signal for generating
Or control voltage；
The signal input part is connected with one end of first adjustable resistance；The output end of the phase inverter is connected to the letter
Number output end.
2. a kind of novel electrifying timing sequence according to claim 1 controls equipment, which is characterized in that the phase inverter includes simultaneously
Join the p-type mosfet transistor and a N-type mosfet transistor of connection；One end of second adjustable resistance simultaneously with
The grid connection of the p-type mosfet transistor, the N-type mosfet transistor；The drain electrode of the p-type mosfet transistor with
The source electrode of the N-type mosfet transistor is commonly connected to the signal output end.
3. a kind of novel electrifying timing sequence according to claim 1 controls equipment, which is characterized in that the triode is selected
NPN type triode, conducting voltage Vbe are 0.5V~1V.
4. a kind of novel electrifying timing sequence according to claim 1 controls equipment, which is characterized in that first adjustable resistance
Resistance value be 1k Ω~2k Ω；The resistance value of second adjustable resistance is 8k Ω~12k Ω；The power supply voltage is 5V.
5. a kind of novel electrifying timing sequence according to claim 1 controls equipment, which is characterized in that the signal input part with
Output control signal or voltage between the signal output end.
6. a kind of novel electrifying timing sequence control system, which is characterized in that the system comprises multiple described in claim 1 novel
Electrifying timing sequence controls equipment；All novel electrifying timing sequence control equipment are connected in series；It is novel described in any two to power on
A power supply chip is equipped between timing control equipment；
The novel electrifying timing sequence control equipment is used to receive the control signal or supply voltage of upper level output, and generates enabled
It controls signal or controls the enable pin of voltage output to power supply chip；The power supply chip be used for according to make to can control signal or
It controls voltage and exports control signal or supply voltage to next stage.
7. a kind of novel electrifying timing sequence control system according to claim 6, which is characterized in that the power supply chip is selected
LDO chip or DC-DC chip.
8. a kind of novel power-on time sequence control method, which is characterized in that the described method includes:
Obtain the control signal or supply voltage of previous level power supply or the output of external logic device；
Electrifying timing sequence control is carried out to control signal or supply voltage using the equipment of claim 1, output makes to can control signal
Or voltage is controlled to power supply chip；
By the downward primary power source output control signal of power supply chip or supply voltage.
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| CN201811472728.9A CN109617544B (en) | 2018-12-04 | 2018-12-04 | Power-on time sequence control equipment, system and method |
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| CN110543127A (en) * | 2019-09-20 | 2019-12-06 | 上海市共进通信技术有限公司 | System for realizing intelligent adjustment of time sequence of multiple power supplies |
| CN112233612A (en) * | 2020-10-28 | 2021-01-15 | 福建捷联电子有限公司 | Automatic judgment device for LED display screen receiving card |
| WO2021134200A1 (en) * | 2019-12-30 | 2021-07-08 | 成都海光集成电路设计有限公司 | Chip design method, chip design apparatus, chip and electronic device |
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| CN103699026A (en) * | 2013-12-25 | 2014-04-02 | 烽火通信科技股份有限公司 | Control device and method for realizing multi-source power-on timing sequence and power-down timing sequence |
| CN203747778U (en) * | 2014-03-03 | 2014-07-30 | 深圳市同洲电子股份有限公司 | System power supply circuit |
| CN106371334A (en) * | 2015-07-21 | 2017-02-01 | 深圳市奇辉电气有限公司 | Circuit for controlling power-on and power-off time sequences and power supply system |
| WO2017084447A1 (en) * | 2015-11-20 | 2017-05-26 | 上海斐讯数据通信技术有限公司 | Power-on timing sequence control circuit, control method, power supply apparatus and electronic terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110543127A (en) * | 2019-09-20 | 2019-12-06 | 上海市共进通信技术有限公司 | System for realizing intelligent adjustment of time sequence of multiple power supplies |
| WO2021134200A1 (en) * | 2019-12-30 | 2021-07-08 | 成都海光集成电路设计有限公司 | Chip design method, chip design apparatus, chip and electronic device |
| US11775717B2 (en) | 2019-12-30 | 2023-10-03 | Chengdu Haiguang Integrated Circuit Design Co., Ltd. | Chip design method, chip design device, chip, and electronic device |
| CN112233612A (en) * | 2020-10-28 | 2021-01-15 | 福建捷联电子有限公司 | Automatic judgment device for LED display screen receiving card |
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