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كيف يتم رفع الفولت
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[COLOR="Indigo "] برجاء ذكر الطريقه بالتوضيح اكبر وبخصوص التيار المستمر [/COLOR]واعتقد ان هذا ما اريده ولاكن ينقصنى شرح هذه الطريقه وهيا من 6 فولت الى 12 فولت  Parts
R1, R4 2.2K 1/4W Resistor R2, R3 4.7K 1/4W Resistor R5 1K 1/4W Resistor R6 1.5K 1/4W Resistor R7 33K 1/4W Resistor R8 10K 1/4W Resistor C1,C2 0.1uF Ceramic Disc Capacitor C3 470uF 25V Electrolytic Capcitor D1 1N914 Diode D21N4004 Diode D3 12V 400mW Zener Diode Q1, Q2, Q4 BC547 NPN Transistor Q3 BD679 NPN Transistor L1 See Notes MISC Heatsink For Q3, Binding Posts (For Input/Output), Wire, Board Notes 1. L1 is a custom inductor wound with about 80 turns of 0.5mm magnet wire around a toroidal core with a 40mm outside diameter. 2. Different values of D3 can be used to get different output voltages from about 0.6V to around 30V. Note that at higher voltages the circuit might not perform as well and may not produce as much current. You may also need to use a larger C3 for higher voltages and/or higher currents. 3. You can use a larger value for C3 to provide better filtering. 4. The circuit will require about 2A from the 6V supply to provide the full 800mA at 12V. التعديل الأخير تم بواسطة : alaa_badr بتاريخ 08-09-2009 الساعة 12:53 AM |
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التعديل الأخير تم بواسطة : sanouber بتاريخ 08-09-2009 الساعة 04:52 PM |
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