CN207853499U - One kind is based on waveform delay Current limited Control device - Google Patents
One kind is based on waveform delay Current limited Control device Download PDFInfo
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- CN207853499U CN207853499U CN201721693577.0U CN201721693577U CN207853499U CN 207853499 U CN207853499 U CN 207853499U CN 201721693577 U CN201721693577 U CN 201721693577U CN 207853499 U CN207853499 U CN 207853499U
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- limited control
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Abstract
The utility model discloses a kind of based on waveform delay Current limited Control device and its application method, controlling of sampling is carried out first, then pulse is generated by PWM, and pulse falling edge is made to postpone, it exports after the delay, finally control MOS drivings, when making pulse falling edge postpone, using delay Current limited Control device, the delay Current limited Control device includes IC chip, even there are two DVM adapters at the pin of the IC chip, it is also connected with delay circuit at the pin of the IC chip, the delay circuit is by sequentially connected diode, resistance and capacitance composition；The problem of should capable of reaching 100% duty ratio based on waveform delay Current limited Control device and its application method, and be solved perfectly without 100% duty ratio chip.
Description
Technical field
The utility model is more particularly to a kind of based on waveform delay Current limited Control device.
Background technology
It applied to lithium battery current-limiting charge field, needs to reach 100% duty ratio, microcontroller scheme is used using scheme,
Response speed does not reach requirement, and reliability is not as good as hardware.And pure hardware version chip is seldom in the stock of market, and be all high frequency
, it is lost in very big.
Utility model content
The purpose of this utility model, which is to provide one kind, can reach 100% duty ratio, be solved perfectly without 100% duty ratio
The problem of chip, is delayed Current limited Control device and its application method based on waveform.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
One kind is based on waveform delay Current limited Control device, when for making pulse falling edge postpone, the delay Current limited Control device
Including IC chip, the IC chip is eight pin chips, at the wherein two pins of the IC chip
Connect respectively there are two DVM adapters, delay circuit, the delay circuit are also connected at the another two pins of the IC chip
It is made of diode, resistance and capacitance, for the diodes in parallel on resistance, the resistance is connected in series to the capacitor connection.
Preferably, the model UCC27524D/IRS4427 of the IC chip.
Preferably, being further connected with a triode on the delay circuit.
Preferably, the model 2SC8550 of the triode.
Preferably, the wherein two pins of the IC chip are connected with DVMA and DVMB respectively.
Preferably, a wherein pin for the IC chip is connected with ground wire.
The utility model has the beneficial effects that：The delay circuit being made of D9.R20.C5, when waveform turns off, hardware electricity
Road is delayed certain time, is still not turned off before the output of next waveform, to achieve the purpose that 100% duty ratio exports.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model；
Fig. 2 is the flow chart of the utility model.
Specific implementation mode
In the present embodiment, it should be noted that relational terms such as first and second and the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.
In addition, the connection between component or fixed form if not otherwise specified in this embodiment, connection or solid
Determine mode can be fixed by bolt commonly used in the prior art or pin fix or axis pin connection etc. modes, therefore, this
It is no longer described in detail in embodiment.
Embodiment 1：
As shown in Figs. 1-2, a kind of based on waveform delay Current limited Control device, controlling of sampling is carried out first, is then produced by PWM
Raw pulse, and pulse falling edge is made to postpone, it exports after the delay, finally controls MOS drivings, when making pulse falling edge postpone,
Using delay Current limited Control device, the delay Current limited Control device includes IC chip, and the IC chip draws for eight
Foot chip connects at the wherein two pins of the IC chip respectively there are two DVM adapters, the IC chip
Also be connected with delay circuit at another two pins, the delay circuit is made of diode, resistance and capacitance, the diodes in parallel in
On resistance, the resistance is connected in series to the capacitor connection, the model UCC27524D/IRS4427 of the IC chip, described
A triode is further connected on delay circuit, the model 2SC8550 of the triode, wherein the two of the IC chip draws
Foot is connected with DVMA and DVMB respectively, and a wherein pin for the IC chip is connected with ground wire.
A kind of application method for the Current limited Control device that is delayed based on waveform, is carried out controlling of sampling, is then generated by PWM first
Pulse, and pulse falling edge is made to postpone, it exports after the delay, finally controls MOS drivings, when making pulse falling edge postpone, adopt
With delay Current limited Control device, when waveform turns off, hardware circuit is delayed certain time, does not still have before the output of next waveform
It closes.
The utility model has the technical effect that following aspect：The delay circuit being made of D9.R20.C5, in waveform
When shutdown, hardware circuit is delayed certain time, is still not turned off before the output of next waveform, to reach 100% duty
Than the purpose of output.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work should be covered within the scope of the utility model.
Claims (6)
1. one kind is based on waveform delay Current limited Control device, when for making pulse falling edge postpone, it is characterised in that：The delay limit
Stream controller includes IC chip, and the IC chip is eight pin chips, and the IC chip is wherein
Connect respectively at two pins there are two DVM adapters, delay circuit is also connected at the another two pins of the IC chip, it is described
Delay circuit is made of diode, resistance and capacitance, and for the diodes in parallel on resistance, the resistance is connected in series to the capacitor company
It connects.
2. according to claim 1 based on waveform delay Current limited Control device, it is characterised in that：The IC chip
Model UCC27524D/I RS4427.
3. according to claim 1 based on waveform delay Current limited Control device, it is characterised in that：It is also connect on the delay circuit
There is a triode.
4. according to claim 3 based on waveform delay Current limited Control device, it is characterised in that：The model of the triode
2SC8550。
5. according to claim 1 based on waveform delay Current limited Control device, it is characterised in that：The IC chip
Wherein two pins are connected with DVMA and DVMB respectively.
6. according to claim 1 based on waveform delay Current limited Control device, it is characterised in that：The IC chip
Wherein a pin is connected with ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721693577.0U CN207853499U (en) | 2017-12-07 | 2017-12-07 | One kind is based on waveform delay Current limited Control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721693577.0U CN207853499U (en) | 2017-12-07 | 2017-12-07 | One kind is based on waveform delay Current limited Control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207853499U true CN207853499U (en) | 2018-09-11 |
Family
ID=63423928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721693577.0U Active CN207853499U (en) | 2017-12-07 | 2017-12-07 | One kind is based on waveform delay Current limited Control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207853499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994634A (en) * | 2017-12-07 | 2018-05-04 | 江苏博强新能源科技股份有限公司 | One kind is based on waveform delay Current limited Control device and its application method |
-
2017
- 2017-12-07 CN CN201721693577.0U patent/CN207853499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994634A (en) * | 2017-12-07 | 2018-05-04 | 江苏博强新能源科技股份有限公司 | One kind is based on waveform delay Current limited Control device and its application method |
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