CN209627242U - A kind of automatic battery charger SS (soft start) control circuit - Google Patents
A kind of automatic battery charger SS (soft start) control circuit Download PDFInfo
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- CN209627242U CN209627242U CN201920301940.2U CN201920301940U CN209627242U CN 209627242 U CN209627242 U CN 209627242U CN 201920301940 U CN201920301940 U CN 201920301940U CN 209627242 U CN209627242 U CN 209627242U
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Abstract
The utility model discloses a kind of automatic battery charger SS (soft start) control circuits, including the main power component of automatic battery charger, automatic battery charger output rectification filter component, automatic battery charger soft starting circuit and automatic battery charger master control PWM module, the main power component of automatic battery charger connects automatic battery charger output rectification filter component, charger output rectification filter component is also connected with automatic battery charger soft starting circuit, the utility model has wider adaptability, circuit is simple, it is at low cost, but protect electronic circuit not because of the hard impact failure circuit of powered on moment well, this circuit can effectively raise Product Safety, extend product service life.
Description
Technical field
The utility model relates to a kind of control circuit, specifically a kind of automatic battery charger SS (soft start) control circuit.
Background technique
It is accordingly not soft to practical application circuit design at present because of many-sided reason in the various circuits in application of electronic technology the inside
Startup function brings hard impact to product, and making product, there are security risks, to reduce the service life of product.
Direct-current micro-grid belongs to the new things of new energy product, and existing main product is the bidirectional DC/DC unsteady flow of grid type
Device abbreviation PCS, if to power to DC load also needs a dcdc converter.Structure is complicated, at high cost, and reliability is low,
Once DC grid failure system, which will collapse, to be continued to run.
Utility model content
The purpose of this utility model is to provide a kind of automatic battery charger SS (soft start) control circuits, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of automatic battery charger SS (soft start) control circuit, including the main power component of automatic battery charger, automatic electric
Electrolytic battery charger output rectification filter component, automatic battery charger soft starting circuit and automatic battery charger master control PWM module,
The main power component of automatic battery charger connects automatic battery charger output rectification filter component, charger output rectification
Filter part is also connected with automatic battery charger soft starting circuit, and automatic battery charger master control PWM module is separately connected automatically
The main power component of battery charger and automatic battery charger soft starting circuit.
Further technical solution as the utility model: the automatic battery charger master control PWM module includes PWM mould
Block P1.
Further technical solution as the utility model: the main power component of automatic battery charger includes that power is opened
The armature winding both ends for closing pipe Q1, resistance R3, resistance R2 and transformer T2, transformer T2 are separately connected the foot 1 of PWM module P1
With foot 2, secondary windings one end of transformer T2 connects resistance R3, and the other end of resistance R3 connects resistance R2 and power switch tube Q1
Grid, the source electrode and ground of the other end connection secondary windings other end of transformer T2 of resistance R2, power switch tube Q1, power
Switching tube Q1 drain electrode connection transformer T1 armature winding one end, transformer T1 the armature winding other end connection capacitor C2 and
450V direct current.
Further technical solution as the utility model: the automatic battery charger output rectification filter component includes
Secondary windings one end of secondary windings, diode D1 and the capacitor C1 of transformer T1, transformer T1 are grounded, the secondary of transformer T1
The winding other end passes through diode D1 connection capacitor C1 and output end OUT+.
Further technical solution as the utility model: the automatic battery charger soft starting circuit includes comparator
U1, resistance R4 and capacitor C3, the foot 3 of comparator U1 connect capacitor C3 and resistance R4, the other end connection capacitor C1's of resistance R4
The other end and resistance R1, the foot 2 of comparator U1 connect the foot 4 of PWM module P1, and the foot 1 of comparator U1 connects PWM module P1's
The other end of foot 1, resistance R1 connects output end OUT-.
Compared with prior art, the utility model has the beneficial effects that the utility model has wider adaptability, electricity
Road is simple, at low cost, but protects electronic circuit not because of the hard impact failure circuit of powered on moment well, this circuit can be effective
Improve Product Safety, extend product service life.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, embodiment 1: a kind of automatic battery charger SS (soft start) control circuit is divided into three big four big component groups
At.The first component is " the main power component of automatic battery charger ", and second component is " automatic battery charger output rectification filter
Component ", third member are " automatic battery charger master control PWM module ", and the 4th component is " automatic battery charger soft start electricity
Road ".The main power component of automatic battery charger connects automatic battery charger output rectification filter component, charger output rectification
Filter part is also connected with automatic battery charger soft starting circuit, and automatic battery charger master control PWM module is separately connected automatically
The main power component of battery charger and automatic battery charger soft starting circuit.
The main power component of automatic battery charger is to filter storage capacitor C2, main power isolation transformer T1 by primary high pressure
(primary), power switch tube Q1, current limliting, discharge resistance R3, R4 and PWM isolation drive transformer composition.Automatic battery charger
Output rectification filter component is storage capacitor C1 to be filtered, through adopting by main power isolation transformer T1 (secondary), rectifier diode D1
Sample resistance R1 to GND composition.Automatic battery charger master control PWM module be by PWM module, it is internal with settable, automatically
Adjust REF composition.Automatic battery charger soft starting circuit be by comparator U1, signal acquisition resistance R4, filter capacitor C3, and
Key element R1 composition.
The armature winding both ends of transformer T2 are separately connected the foot 1 and foot 2 of PWM module P1, the secondary windings of transformer T2
One end connects resistance R3, the grid of the other end connection resistance R2 and power switch tube Q1 of resistance R3, and the other end of resistance R2 connects
The secondary windings other end of transformer T2, the source electrode and ground of power switch tube Q1 are connect, the drain electrode of power switch tube Q1 connects transformation
The armature winding other end of armature winding one end of device T1, transformer T1 connects capacitor C2 and 450V direct current.Transformer T1's
The secondary windings other end of secondary windings one end ground connection, transformer T1 passes through diode D1 connection capacitor C1 and output end OUT+.
The foot 3 of comparator U1 connects capacitor C3 and resistance R4, and the other end of resistance R4 connects the other end and resistance R1 of capacitor C1, than
Foot 2 compared with device U1 connects the foot 4 of PWM module P1, and the foot 1 of comparator U1 connects the foot 1 of PWM module P1, the other end of resistance R1
Connect output end OUT-.
When circuit powered on moment power switch tube Q1 ON operation, isolating transformer output, rectifier diode D1 output warp
R1 voltage is added to capacitor C1 upper and lower ends, and because capacitor C1 upper and lower ends voltage can not be mutated, the pressurization of capacitor both ends moment can be considered
Instantaneous short circuit is exported, loop current is very big, then pressure drop is just produced on resistance R1 sampling resistor, by " automatic battery charging
The comparator U1 of device soft starting circuit " is collected through resistance R4 is compared output with REF, is sent into PWM module P1 and quickly divides
Analysis, if exceeded soft start setting value, beyond PWM output is stopped then to switch-off power switching tube Q1, reached soft start guarantor
Protective function, after power switch tube Q1 is turned off by protection, the comparator U1 of " automatic battery charger soft starting circuit " is through resistance
When R4 does not acquire the signal on resistance R1, at this moment U1 is not just exported, the automatic output pwm signal driving power switch of PWM module
Pipe Q1 ON operation, such Rapid Circulation until the both ends capacitor C1 fill energy with, " automatic battery charger master control PWM module " just
Can automatically adjust REF allow complete machine can normal Maximum Power Output, realize the soft output of soft start.Energy can be carried according to overall design band
Power adjusts " automatic battery charger master control PWM module " REF value, can power on and quickly take up load, and can software protection charging
Device.
Embodiment 2: on the basis of embodiment 1, the power switch tube Q1 of the design selects MOSFET-N, response speed
Block, by its turn-on and turn-off of the current control of grid, on-off times are more, the integrated use demand suitable for the design.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of automatic battery charger SS (soft start) control circuit, including the main power component of automatic battery charger, automatic battery
Charger output rectification filter component, automatic battery charger soft starting circuit and automatic battery charger master control PWM module,
It is characterized in that, the main power component of automatic battery charger connects automatic battery charger output rectification filter component, charging
Device output rectification filter component is also connected with automatic battery charger soft starting circuit, automatic battery charger master control PWM module point
It Lian Jie not the main power component of automatic battery charger and automatic battery charger soft starting circuit.
2. a kind of automatic battery charger SS (soft start) control circuit according to claim 1, which is characterized in that described automatic
Battery charger master control PWM module includes PWM module P1.
3. a kind of automatic battery charger SS (soft start) control circuit according to claim 2, which is characterized in that described automatic
The main power component of battery charger includes power switch tube Q1, resistance R3, resistance R2 and transformer T2, transformer T2 it is primary around
Group both ends are separately connected the foot 1 and foot 2 of PWM module P1, and secondary windings one end of transformer T2 connects resistance R3, and resistance R3's is another
One end connects the grid of resistance R2 and power switch tube Q1, and the secondary windings of the other end connection transformer T2 of resistance R2 is another
It holds, the source electrode and ground of power switch tube Q1, armature winding one end of the drain electrode connection transformer T1 of power switch tube Q1, transformer
The armature winding other end of T1 connects capacitor C2 and 450V direct current.
4. a kind of automatic battery charger SS (soft start) control circuit according to claim 3, which is characterized in that described automatic
Battery charger output rectification filter component includes the secondary windings of transformer T1, diode D1 and capacitor C1, transformer T1's
The secondary windings other end of secondary windings one end ground connection, transformer T1 passes through diode D1 connection capacitor C1 and output end OUT+.
5. a kind of automatic battery charger SS (soft start) control circuit according to claim 4, which is characterized in that described automatic
Battery charger soft starting circuit includes comparator U1, resistance R4 and capacitor C3, and the foot 3 of comparator U1 connects capacitor C3 and resistance
The other end and resistance R1 of the other end connection capacitor C1 of R4, resistance R4, the foot 2 of comparator U1 connect the foot 4 of PWM module P1,
The foot 1 of comparator U1 connects the foot 1 of PWM module P1, and the other end of resistance R1 connects output end OUT-, the model of comparator U1
LM324。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301940.2U CN209627242U (en) | 2019-03-11 | 2019-03-11 | A kind of automatic battery charger SS (soft start) control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301940.2U CN209627242U (en) | 2019-03-11 | 2019-03-11 | A kind of automatic battery charger SS (soft start) control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209627242U true CN209627242U (en) | 2019-11-12 |
Family
ID=68456366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920301940.2U Active CN209627242U (en) | 2019-03-11 | 2019-03-11 | A kind of automatic battery charger SS (soft start) control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209627242U (en) |
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2019
- 2019-03-11 CN CN201920301940.2U patent/CN209627242U/en active Active
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