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Subject: 13v8, 9v1: Что за сокращения? Два раза в описании источника питания для охранной сигнализации встретилист такие вот сокращения? Что бы они могли значить?Use a genuine alarm type back-up battery. They are maintenance-free, and their terminals can be held at 13v8 for many years, with no ill effects. Use the 2-amp version of the 7805. It needs the larger heatsink because it has to dissipate a lot of energy, especially when called upon to recharge a flat battery. This heatsink is at 9v1, and must NOT be connected to ground. Заранее благодарен! |
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imho 13v8 = 13,8 v Therefore the output at pin 3 will be ( 9v1 + 5 = 14v1 ). |
| да, это как 4k7 = 4,7 кОм |
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