CN207799411U - A kind of Novel blood pressure-reducing adjusting circuit electrifying timing sequence control device - Google Patents
A kind of Novel blood pressure-reducing adjusting circuit electrifying timing sequence control device Download PDFInfo
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- CN207799411U CN207799411U CN201820131580.1U CN201820131580U CN207799411U CN 207799411 U CN207799411 U CN 207799411U CN 201820131580 U CN201820131580 U CN 201820131580U CN 207799411 U CN207799411 U CN 207799411U
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Abstract
The utility model provides a kind of Novel blood pressure-reducing adjusting circuit electrifying timing sequence control device, including：Power input Vin, power output end Vout, voltage adjust chip U1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, comparator M1, comparator M2, with door chip U2 and field-effect tube Q1；The power input that voltage adjusts chip U1 is connect with power input Vin, and the power output end that voltage adjusts chip U1 is connect with power output end Vout；By to input voltage, chip operating voltage and chip switch signal reasonably detect and control, chip signal effective order is controlled by the way that threshold value is independently arranged so that the work of reduction regulation circuit is more rationally and reliable.
Description
Technical field
The utility model is related to voltage control fields more particularly to a kind of Novel blood pressure-reducing to adjust circuit electrifying timing sequence control dress
It sets.
Background technology
Existing reduction regulation circuit does not all control electrifying timing sequence, input voltage, chip operating voltage and core
Piece switching signal is run parallel, or even when certain signals or voltage fail to reach design standard, chip begins to work, gives
System operation brings high risks.
Specifically, prior art does not all control electrifying timing sequence, input voltage, chip operating voltage and core
Piece, switching signal are run parallel, as long as these three signals reach minimum standard, regardless of sequence can all start to work.In this way
In the presence of that cannot reach expected design, preliminary work surge current is big, the shortcomings that can not stablizing output, and pole is brought to system operation
Big harm.
Invention content
In order to overcome above-mentioned deficiency in the prior art, when a kind of Novel blood pressure-reducing adjusting circuit of the utility model offer powers on
Sequence control device, including：Power input Vin, power output end Vout, voltage adjust chip U1, resistance R1, resistance R2, electricity
Hinder R3, resistance R4, resistance R5, comparator M1, comparator M2, with door chip U2 and field-effect tube Q1；
The power input that voltage adjusts chip U1 is connect with power input Vin, and the power supply that voltage adjusts chip U1 is defeated
Outlet is connect with power output end Vout；
The Enable Pin that voltage adjusts chip U1 is connected with resistance R5 second ends and field-effect tube Q1 drain electrodes respectively；Resistance R5
One termination enables input terminal；Field-effect tube Q1 source electrodes are grounded, and field-effect tube Q1 grids are connect with tri- feet of door chip U2；With door core
Mono- feet of piece U2 are connect with five feet of comparator M1, and tri- feet of comparator M1 connect power supply, tetra- feet of comparator M1 ground connection, and mono- feet of comparator M1 connect
Power supply, bis- feet of comparator M1 are connect with resistance R3 second ends and resistance R4 first ends respectively, resistance R4 second ends ground connection, resistance R3
First termination power；
Five feet of comparator M2 are connect with bis- feet of door chip U2, tri- feet of comparator M2 connect power supply, and tetra- feet of comparator M2 ground connection is compared
Mono- feet of device M2 connect power supply, and bis- feet of comparator M2 are connect with resistance R1 second ends and resistance R2 first ends respectively, resistance R2 second ends
Ground connection, the first termination powers of resistance R1.
Preferably, voltage adjusts the model of chip U1：IM324n or OB2269.
Preferably, with the model of door chip U2：74IS00.
Preferably, field-effect tube Q1 uses P-channel enhancement type Metal-Oxide Semiconductor field-effect transistor.
Preferably, the model of comparator M1 and comparator M2 are LM423 or LM358 or LM741.
Preferably, the power supply that tri- feet of comparator M1 connect, the power supply that tri- feet of comparator M2 connect, the power supply that resistance R1 first is terminated
And the power supply that resistance R3 first is terminated is P12V.
As can be seen from the above technical solutions, the utility model has the following advantages：
By to input voltage, chip operating voltage and chip switch signal reasonably detect and control, by certainly
Main setting threshold value controls chip signal effective order so that the work of reduction regulation circuit is more rationally and reliable.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, attached drawing needed in description will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, for this field
For those of ordinary skill, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is that Novel blood pressure-reducing adjusts circuit electrifying timing sequence control device schematic diagram.
Specific implementation mode
It, below will fortune to enable the purpose of utility model, feature, advantage of the utility model more apparent and understandable
With specific embodiment and attached drawing, the technical solution of the utility model protection is clearly and completely described, it is clear that below
The described embodiments are only a part of the embodiments of the utility model, and not all embodiment.Based on the reality in this patent
Example is applied, all other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of this patent protection.
The utility model provides a kind of Novel blood pressure-reducing adjusting circuit electrifying timing sequence control device, as shown in Figure 1, including：Electricity
Source input terminal Vin, power output end Vout, voltage adjust chip U1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5,
Comparator M1, comparator M2, with door chip U2 and field-effect tube Q1；
The power input that voltage adjusts chip U1 is connect with power input Vin, and the power supply that voltage adjusts chip U1 is defeated
Outlet is connect with power output end Vout；Voltage adjust the Enable Pin of chip U1 respectively with resistance R5 second ends and field-effect tube Q1
Drain electrode connection；The terminations of resistance R5 first enable input terminal；Field-effect tube Q1 source electrodes be grounded, field-effect tube Q1 grids with door chip
Tri- feet of U2 connect；It is connect with mono- feet of door chip U2 with five feet of comparator M1, tri- feet of comparator M1 connect power supply, and tetra- feet of comparator M1 connect
Ground, mono- feet of comparator M1 connect power supply, and bis- feet of comparator M1 are connect with resistance R3 second ends and resistance R4 first ends respectively, resistance R4
Second end is grounded, the first termination powers of resistance R3；Five feet of comparator M2 are connect with bis- feet of door chip U2, tri- feet of comparator M2 connect electricity
Source, tetra- feet of comparator M2 ground connection, mono- feet of comparator M2 connect power supply, bis- feet of comparator M2 respectively with resistance R1 second ends and resistance R2
First end connects, resistance R2 second ends ground connection, the first termination powers of resistance R1.
Voltage adjusts the model of chip U1：IM324n or OB2269.With the model of door chip U2：74IS00.Field effect
Should pipe Q1 use P-channel enhancement type Metal-Oxide Semiconductor field-effect transistor.The model of comparator M1 and comparator M2 are equal
For LM423 or LM358 or LM741.The power supply that tri- feet of comparator M1 connect, the power supply that tri- feet of comparator M2 connect, resistance R1 first
The power supply of power supply and resistance R3 first termination of termination is P12V.
The normal operating conditions that partial pressure setting input voltage vin is carried out by resistance R1 and resistance R2, utilizes comparator M2
Using comparing result as the input with door chip U2, partial pressure setting chip operating voltage Vcc is carried out by resistance R3 and resistance R4
Normal operating conditions, using comparator M1 using comparing result as with door chip U2 another input, be only used in Vin and
After the voltage of Vcc all reaches the threshold value of setting, comparator M1 and comparator M2 can just export high level.
Field-effect tube Q1 is tended to remain on when exporting low level with door chip U2, and pressure drags down chip switch signal
Enable makes Enable invalidating signals to ground, prevents voltage from adjusting chip U1 work, and avoid generating system using resistance R5
It influences, high level is exported until voltage adjusts chip U1, and voltage adjusting chip U1 is only defeated in comparator M1 and comparator M2
High level can be just exported when going out high level so that field-effect tube Q1 cut-offs, chip switch signal Enable signals, which can be just in, to be had
Effect state, otherwise, one is low level in arbitrary comparator M1 and comparator M2, and voltage, which adjusts chip U1, will export low electricity
Flat, field-effect tube Q1 conductings make Enable invalidating signals.
In the utility model, by resistance R1, resistance R2, resistance R3, resistance R4, comparator M1 and comparator M2 form sequential
Circuit for detecting is compared for input voltage vin and chip operating voltage Vcc, confirmation input voltage status chip operation electricity
Pressure condition, and the input signal by comparing device M1 and comparator M2 output low and high levels as control circuit, in Vin and Vcc
Comparator M1 and comparator M2 export high level when reaching design standard, are not up to corresponding comparator when standard and export low electricity
It is flat.
By forming electric discharge boostrap circuit with door chip D1, resistance R5, P-mosfet Q1, according to comparator M1 and comparator
The output state of M2 by controlling the state of field-effect tube Q1 with door chip U2, and is avoided generating system and be done using resistance R5
It disturbs, only when comparator M1 and comparator M2 export high level, U1 exports high level so that field-effect tube Q1 cut-offs, this
When chip switch signal Enable signals can just be in effective status, otherwise, one is in arbitrary comparator M1 and comparator M2
Low level, voltage, which adjusts chip U1, will export low level, and field-effect tube Q1 conductings make Enable invalidating signals.
Term " first " in the specification and claims of the utility model and above-mentioned attached drawing, " second ", " third "
(if present)s such as " the 4 " are for distinguishing similar object, without being used to describe specific sequence or precedence.It answers
The data that the understanding uses in this way can be interchanged in the appropriate case, so that the embodiments of the present invention described herein can
Implemented with the sequence other than those of illustrating or describing herein.In addition, term " comprising " and " having " and they
Any deformation, it is intended that cover and non-exclusive include.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (6)
1. a kind of Novel blood pressure-reducing adjusts circuit electrifying timing sequence control device, which is characterized in that including：Power input Vin, power supply
Output end vo ut, voltage adjust chip U1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, comparator M1, comparator
M2, with door chip U2 and field-effect tube Q1；
The power input that voltage adjusts chip U1 is connect with power input Vin, and voltage adjusts the power output end of chip U1
It is connect with power output end Vout；
The Enable Pin that voltage adjusts chip U1 is connected with resistance R5 second ends and field-effect tube Q1 drain electrodes respectively；Resistance R5 first ends
Connect enabled input terminal；Field-effect tube Q1 source electrodes are grounded, and field-effect tube Q1 grids are connect with tri- feet of door chip U2；With door chip U2
One foot is connect with five feet of comparator M1, and tri- feet of comparator M1 connect power supply, tetra- feet of comparator M1 ground connection, and mono- feet of comparator M1 connect electricity
Source, bis- feet of comparator M1 are connect with resistance R3 second ends and resistance R4 first ends respectively, resistance R4 second ends ground connection, resistance R3 the
One termination power；
Five feet of comparator M2 are connect with bis- feet of door chip U2, tri- feet of comparator M2 meet power supply, tetra- feet of comparator M2 ground connection, comparator M2
One foot connects power supply, and bis- feet of comparator M2 are connect with resistance R1 second ends and resistance R2 first ends respectively, resistance R2 second ends ground connection,
The first termination powers of resistance R1.
2. Novel blood pressure-reducing according to claim 1 adjusts circuit electrifying timing sequence control device, which is characterized in that
Voltage adjusts the model of chip U1：IM324n or OB2269.
3. Novel blood pressure-reducing according to claim 1 adjusts circuit electrifying timing sequence control device, which is characterized in that
With the model of door chip U2：74IS00.
4. Novel blood pressure-reducing according to claim 1 adjusts circuit electrifying timing sequence control device, which is characterized in that
Field-effect tube Q1 uses P-channel enhancement type Metal-Oxide Semiconductor field-effect transistor.
5. Novel blood pressure-reducing according to claim 1 adjusts circuit electrifying timing sequence control device, which is characterized in that
The model of comparator M1 and comparator M2 are LM423 or LM358 or LM741.
6. Novel blood pressure-reducing according to claim 1 adjusts circuit electrifying timing sequence control device, which is characterized in that
The power supply that tri- feet of comparator M1 connect, the power supply that tri- feet of comparator M2 connect, the power supply and resistance R3 that resistance R1 first is terminated
The power supply of first termination is P12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820131580.1U CN207799411U (en) | 2018-01-26 | 2018-01-26 | A kind of Novel blood pressure-reducing adjusting circuit electrifying timing sequence control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820131580.1U CN207799411U (en) | 2018-01-26 | 2018-01-26 | A kind of Novel blood pressure-reducing adjusting circuit electrifying timing sequence control device |
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| CN207799411U true CN207799411U (en) | 2018-08-31 |
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| CN201820131580.1U Active CN207799411U (en) | 2018-01-26 | 2018-01-26 | A kind of Novel blood pressure-reducing adjusting circuit electrifying timing sequence control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193599A (en) * | 2018-11-02 | 2019-01-11 | 李振奎 | A kind of ladder cuts unrestrained arc-suppressing method and extinguisher |
| CN110032263A (en) * | 2019-04-15 | 2019-07-19 | 苏州浪潮智能科技有限公司 | A kind of server and its power-down protection circuit |
-
2018
- 2018-01-26 CN CN201820131580.1U patent/CN207799411U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193599A (en) * | 2018-11-02 | 2019-01-11 | 李振奎 | A kind of ladder cuts unrestrained arc-suppressing method and extinguisher |
| CN110032263A (en) * | 2019-04-15 | 2019-07-19 | 苏州浪潮智能科技有限公司 | A kind of server and its power-down protection circuit |
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