Digitálne výstupy: Rozdiel medzi revíziami
Zo stránky SensorWiki
| Riadok 38: | Riadok 38: | ||
* ToDo celu stranku najlepsie, zatial aspon nejake typy: | * ToDo celu stranku najlepsie, zatial aspon nejake typy: | ||
** L298N asi najpouzivanejsie, bipolarne tranzistory, velke straty z napajania | ** L298N asi najpouzivanejsie, bipolarne tranzistory, velke straty z napajania | ||
** HR4988 is a Chinese imitation of the Allegro A4988: DMOS Microstepping Driver with Translator And Overcurrent Protection ([https://www.pololu.com/file/0j450/a4988_dmos_microstepping_driver_with_translator.pdf datasheet])<BR> | ** HR4988 is a Chinese imitation of the Allegro A4988: DMOS Microstepping Driver with Translator And Overcurrent Protection ([https://www.pololu.com/file/0j450/a4988_dmos_microstepping_driver_with_translator.pdf datasheet])<BR> je to 2x Full H-Bridge, 0.320 Ohm, 8-35V/2A na 3.3 aj 5V logiku (ale na obyc. DC motor je to trocha overkomplikovane). | ||
je to 2x Full H-Bridge, 0.320 Ohm, 8-35V/2A na 3.3 aj 5V logiku (ale na obyc. DC motor je to trocha overkomplikovane). | |||
** DRV8833 Texas Instruments ([https://www.ti.com/lit/gpn/DRV8833 datasheet]) je to 2x Full H, 0.360 Ohm, 2.7-10V/0.5A (mozno 1.5A) (modul z [https://techfun.sk/produkt/motor-driver-3v-10v-dual-h-bridge-drv8833/ TechFun]) | ** DRV8833 Texas Instruments ([https://www.ti.com/lit/gpn/DRV8833 datasheet]) je to 2x Full H, 0.360 Ohm, 2.7-10V/0.5A (mozno 1.5A) (modul z [https://techfun.sk/produkt/motor-driver-3v-10v-dual-h-bridge-drv8833/ TechFun]) | ||
** L9110 2.5V-12V; 800mA je to cinsky asic, minimum informacii ([https://techfun.sk/produkt/motor-driver-h-mostik-l9110/ TechFun]) | |||
[[Category:ELSA]] | [[Category:ELSA]] | ||
Verzia z 16:08, 20. november 2024
Digitálny výstup - tranzistor ako spínač
Úloha: postupujte podľa obrázkov, vždy najprv vypočítajte hodnoty súčiastok, potom zapojte obvod na skúšobnej doštičke a potom odmerajte, či ste dosiahli požadované parametre.
ToDo: este tu chyba jednoduchy PWM obvod s NE555 na regulaciu vykonu.
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Schema 1 -
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Schema 4 -
Schema 5
Katalógové údaje (datasheet)
- Spínacia dióda 1N4148
- Usmerňovacia dióda 1N4001
- Darlington NPN Tranzistor TIP120
- Výkonový HEXFET Mosfet Tranzistor IRF530
- Relé M4-5H
Linky
- http://www.ermicro.com/blog/?p=423
- http://www.electronics-tutorials.ws/transistor/tran_4.html
- https://en.wikibooks.org/wiki/Practical_Electronics/Stepper_Motors
- http://www.electro-tech-online.com/threads/how-to-protect-a-transistor-switch-using-a-diode.144829/
- http://electronics.stackexchange.com/questions/31014/where-should-i-put-the-kickback-diode-in-a-transistor-switch
- http://electronics.stackexchange.com/questions/93452/correct-use-of-flyback-or-snubber-diode-across-motor-or-transistor
Polovicny mostik
H-mostik
- ToDo celu stranku najlepsie, zatial aspon nejake typy:
- L298N asi najpouzivanejsie, bipolarne tranzistory, velke straty z napajania
- HR4988 is a Chinese imitation of the Allegro A4988: DMOS Microstepping Driver with Translator And Overcurrent Protection (datasheet)
je to 2x Full H-Bridge, 0.320 Ohm, 8-35V/2A na 3.3 aj 5V logiku (ale na obyc. DC motor je to trocha overkomplikovane). - DRV8833 Texas Instruments (datasheet) je to 2x Full H, 0.360 Ohm, 2.7-10V/0.5A (mozno 1.5A) (modul z TechFun)
- L9110 2.5V-12V; 800mA je to cinsky asic, minimum informacii (TechFun)