Avind nevoie de mai multe module step-up de la 12V la 40V circa 2A, am hotarit sa mi le fac singur pentru a reduce putin costul. M-am oprit asupra lui UC3843 pentru ca am suficiente, restul componentelor provenind din recuperari. Cu R8=0,47OHm protectia intra la cca 2,5A, cu R8=0,01Ohm incepe sa functioneze dupa 13A. Tensiunea maxima stabila la 3A a fost de 52V. Schema finala este: Schema este foarte apropiata de cea a modului chinezesc pe care l-am utilizat pina acum : Realizarea de test arata ca mai jos: Frecventa de oscilatie a rezultat 82KHz cu valorile date in schema. Bobina este nemodificata si provine de la o sursa ATX, de asemenea si dioda dubla. Tranzistorul si radiatorul sint de la un UPS defect. Oscilatiile din poza sint cele din grila tranzistorului. Punind soclu pe placa de test am reusit sa verific su UC-urile ce le aveam recuperarte. Cu o sarcina de aproape 2,3A simulata cu 3 becuri de semnalizare legate in serie radiatorul s-a mentinut rece, bobina s-a incalzit foarte usor. Am desenat si o varianta de cablaj lejer pe care sa incapa radiatorul utilizat, si sa poata intra in cutie. Varianta pentru transfer toner este cloud si imediat ce voi face un pic de ordine ma apuc de calcat. Imagini cu varianta pe cablaj: O alta varianta de cablaj: Iar aici realizat pe un PCB de la PCBWAY,
It’s no secret that Russia’s president (and sometimes prime minister) Vladimir Putin
Президент России Владимир Путин в ходе рабочей поездки в Череповец побывал в городском Центре боевых искусств и повидался с его воспитанниками. Sport News главные спортивные новости Путин прибыл с визитом в Центр боевых искусств в Череповце -
Predsednik RF Vladimir Putin je često bio frustriran predsednikom Donaldom Trampom zbog njegovog nedostatka znanja o geopolitičkim pitanjima, rekla je
Since 2013, Russia has enforced “internet extremism” laws that forbid the dissemination of online content that the government finds offensive. Newly added to that list is an image that depicts Vladimir Putin as, in the words of the Washington Post, “a potentially gay clown.” As such, the above image is now illegal in…
Videozáznam schůze sibiřských akademiků trvá čtyři hodiny dvacet minut. Veřejnosti měl zůstat utajen. Sibiř je v něm vykreslena jako chemická sloučenina.
Novi ameriški predsednik v televizijskem intervjuju o odnosih z Rusijo, migrantski krizi in tudi svojem psu Majorju.
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Why is there a war in Ukraine? What has caused tension between Russia and the West? Who is the heroic and brave Volodymyr Oleksandrovych Zelenskyy? Civics Lesson (2 Hour) . Editable 31+ slide PowerPoint Lesson. ✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰ Learning objectives To understand why there is a war in Ukraine To explore the response of international organisations to supporting Ukraine To evaluate what impact economic sanctions will have against Russia Some Key Terms Covered NATO, EU, Soviet Union, War, Conflict, Peace, Vladamir Putin, Vladamir Zelenskiy, Sancions, No Flyzone PSHE (Assessment) Objectives I can explain why there is a war in Ukraine I understand the History of tension between Russia and the West I can explain how international organisations are helping Ukraine ✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰✰ Each Lesson Pack Contains: ☞ 1 Fully Editable PowerPoint (Learning Outcomes, Confidence Checkers, Assessment of Learning, Variety of Tasks, Video Embedded URL Clips, Engaging Premium Quality Slides, Extra Support Websites, Challenging & Thoughtful Questioning) ◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈ Our Philosophy We aim to help you equip students with the knowledge and skills to take ownership of their own learning. Our Products come ‘Ready-to-Teach’ with everything you need to teach fun and creative lessons. Our products are teacher-designed, classroom tested & student approved. ◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈ ◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈ ➡️ Be sure to follow our store to be alerted of new products. >> Click here << ➡️ Don't forget to leave feedback. You will receive TPT credits that can be used on future purchases ➡️ Follow us on ➡️ Twitter and ➡️ Instagram to interact with us and stay up to date with new products and ideas! ◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈◈ Terms of Use This product is allowed to be used in the purchaser's school only. If you wish to share this resource with another colleague, or parent, please purchase an additional license at a discounted price. This product is not to be posted online, in whole or in part, without prior consent. Check out our website at www.Cre8tiveresources.com for full terms and conditions and sign up to our news letter and access a large catalogue of free and paid products.
Proti kryptoměnám se Rusko stavělo již delší dobu. Upozorňovalo, že je lze využít k praní špinavých peněz či k financování...
Twenty years ago the Russian president Boris Yeltsin appointed his fourth prime minister in less than 18 months: Vladimir Putin, then a relatively unknown security services chief with scant experience of politics. Few could have predicted that two decades later Putin would still be ruling Russia
