CN203616639U - Multichannel pulse width modulation (PWM) controller and water spray controller - Google Patents
Multichannel pulse width modulation (PWM) controller and water spray controller Download PDFInfo
- Publication number
- CN203616639U CN203616639U CN201320855101.8U CN201320855101U CN203616639U CN 203616639 U CN203616639 U CN 203616639U CN 201320855101 U CN201320855101 U CN 201320855101U CN 203616639 U CN203616639 U CN 203616639U
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- Prior art keywords
- pwm
- chip
- controller
- multichannel
- water spray
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- 239000007921 spray Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000000737 periodic effect Effects 0.000 claims abstract description 7
- 238000002955 isolation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Spray Control Apparatus (AREA)
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- Special Spraying Apparatus (AREA)
Abstract
The utility model provides a multichannel pulse width modulation (PWM) controller and a water spray controller, and relates to the PWM control field. The multichannel PWM controller comprises an RS485 chip, a multichannel PWM wave signal generator, and at least one channel of PWM driver chip, wherein the RS485 chip receives a duty ratio and periodic data and transmits the duty ratio and the periodic data to the multichannel PWM wave signal generator; the multichannel PWM wave signal generator transmits wave signals to at least one channel of the PWM driver chips according to the duty ratio and periodic signals; and the PWM driver chip amplifies the wave signals, so as to drive controlled objects. The multichannel PWM controller provided by the utility model helps to realize the function of simultaneously driving multiple channels of PWM controlled objects, is highly integrated, and has excellent synchronism.
Description
Technical field
The utility model relates to PWM control field, relates in particular to a kind of multi-channel PWM controller.
Background technology
Width modulation (PWM) refers to by the numeral of microprocessor exports mimic channel is controlled, and is that one is carried out digitally coded method to analog signal level, with digital form control simulation circuit, can significantly reduce cost and the power consumption of system.In many microcontrollers, all comprise PWM controller.In prior art, conventionally use single channel PWM controller, but along with system integration degree increases, need multi-channel PWM controller.
In prior art, conventionally multiple PWM controllers are combined and controlled to reach the effect of multi-channel PWM controller.
But by the control that combines of multiple PWM controllers, the waveform of output can not be synchronous, and cost is higher.
Utility model content
(1) technical matters solving
For the deficiencies in the prior art, the utility model provides a kind of multi-channel PWM controller, can make the synchronous waveform of output, and reduce cost.
(2) technical scheme
For realizing above object, the utility model is achieved by the following technical programs:
A kind of multi-channel PWM controller, comprising: RS485 chip, multiplex PWM waves signal generator, and at least one road PWM drives chip;
Described RS485 chip receives dutycycle and cycle data, and sends described multiplex PWM waves signal generator to;
Described multiplex PWM waves signal generator, according to described dutycycle and periodic signal, drives chip to send waveform signal at least one road PWM;
Described PWM drives chip that described waveform signal is amplified to rear drive control object.
Preferably, also comprise isolator and electromagnetic isolation RS485 chip.
The utility model also provides a kind of water spray controller, comprises above-mentioned multi-channel PWM controller, also comprises host computer and at least one road water spray solenoid valve;
Wherein, host computer sends dutycycle and cycle data to described RS485 chip, and every road PWM drives the corresponding road water spray solenoid valve of chip
(3) beneficial effect
The utility model provides a kind of multi-channel PWM controller, receives dutycycle and cycle data, and send described multiplex PWM waves signal generator to by RS485 chip; Described multiplex PWM waves signal generator, according to described dutycycle and periodic signal, drives chip to send waveform signal at least one road PWM; Described PWM drives chip that described waveform signal is amplified to rear drive control object.Thereby realize the function that can simultaneously drive multi-channel PWM control object, possessed highly integratedly, and there is good synchronism.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of Fig. 1 the utility model embodiment multi-channel PWM controller;
The spray water structural representation of controller of Fig. 2 the utility model embodiment.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1:
As shown in Figure 1, the present embodiment provides a kind of multi-channel PWM controller, comprising: RS485 chip, multiplex PWM waves signal generator, and at least one road PWM drives chip;
Described RS485 chip receives dutycycle and cycle data, and sends described multiplex PWM waves signal generator to;
Described multiplex PWM waves signal generator, according to described dutycycle and periodic signal, drives chip to send waveform signal at least one road PWM;
Described PWM drives chip that described waveform signal is amplified to rear drive control object.
The utility model has been realized the function that can simultaneously drive multi-channel PWM control object, has possessed highly integratedly, and has good synchronism.
The utility model is further drawn together circuit protection module, and described circuit protection module is made up of isolator and electromagnetic isolation RS485 chip.Described circuit protection module, adopts electromagnetic isolation technology, makes multi-channel PWM controller and extraneous electrical isolation completely, can suppress 2000V instantaneous pressure.
Embodiment 2:
As shown in Figure 2, the utility model also provides a kind of water spray controller, comprises the multi-channel PWM controller described in embodiment 1, and the present embodiment adopts Wei 16 road PWM controllers, also comprises host computer He16Lu road water spray solenoid valve;
Wherein, host computer sends dutycycle and cycle data to described RS485 chip, and every road PWM drives the corresponding road water spray solenoid valve of chip.
The present embodiment, by 16 road PWM controllers, can realize the synchro control of Dui16 road water spray solenoid valve, and save chip cost.
It should be noted that, term " comprises " in this article, " comprising " or its any other variant be intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the utility model.
Claims (3)
1. a multi-channel PWM controller, is characterized in that, comprising: RS485 chip, multiplex PWM waves signal generator, and at least one road PWM drives chip;
Described RS485 chip receives dutycycle and cycle data, and sends described multiplex PWM waves signal generator to;
Described multiplex PWM waves signal generator, according to described dutycycle and periodic signal, drives chip to send waveform signal at least one road PWM;
Described PWM drives chip that described waveform signal is amplified to rear drive control object.
2. multi-channel PWM controller as claimed in claim 1, is characterized in that, also comprises isolator and electromagnetic isolation RS485 chip.
3. a water spray controller, is characterized in that, comprises the multi-channel PWM controller as described in claim 1～2, also comprises host computer and at least one road water spray solenoid valve;
Wherein, host computer sends dutycycle and cycle data to described RS485 chip, and every road PWM drives the corresponding road water spray solenoid valve of chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855101.8U CN203616639U (en) | 2013-12-23 | 2013-12-23 | Multichannel pulse width modulation (PWM) controller and water spray controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855101.8U CN203616639U (en) | 2013-12-23 | 2013-12-23 | Multichannel pulse width modulation (PWM) controller and water spray controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203616639U true CN203616639U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320855101.8U Expired - Lifetime CN203616639U (en) | 2013-12-23 | 2013-12-23 | Multichannel pulse width modulation (PWM) controller and water spray controller |
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| CN (1) | CN203616639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166490A (en) * | 2019-06-25 | 2019-08-23 | 长沙瀚鹏电子技术有限公司 | A kind of voltage type PWM wave network controller, method and system |
| CN110191038A (en) * | 2019-06-25 | 2019-08-30 | 长沙瀚鹏电子技术有限公司 | A kind of current type PWM wave network controller, method and system |
-
2013
- 2013-12-23 CN CN201320855101.8U patent/CN203616639U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166490A (en) * | 2019-06-25 | 2019-08-23 | 长沙瀚鹏电子技术有限公司 | A kind of voltage type PWM wave network controller, method and system |
| CN110191038A (en) * | 2019-06-25 | 2019-08-30 | 长沙瀚鹏电子技术有限公司 | A kind of current type PWM wave network controller, method and system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
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| CX01 | Expiry of patent term |