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Recent content by Astrid1

  1. A

    ESR on 1206 X7R capacotpr?

    Thanks you for information. X=Xc+ESR= 0,12+0,060=0,18 Ohm For 0.5A P=R*I^2=0.18*0.5*0.5=45mW For 2A I use 4pcs ||
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    ESR on 1206 X7R capacotpr?

    I need a capacitor for blocking DC , for that either through AC 15MHz. I would like to use 1206 SMD X7R 200V the question is how such a capacitor is approximately, so what current can safely pass through one piece?
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    Jumpers in Altium Designer

    I solved this problem by renaming the net in the PC, but it is not a systemic solution. Each update from schematic editor to PCB tends modyfy net back to faulty therefore, the problem is in the scheme. At first I thought that I was making a mistake when creating a jumper, but when I use the...
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    Jumpers in Altium Designer

    OK her is real expample **broken link removed** **broken link removed** Jumper J1 connect U4 Pin1 with D6 and Pin3 TR. If I remove J1, all three pin are combined in one NET and it can be routes. With jumpers I have **broken link removed** **broken link removed** U4 Pin1 and both pin on Jumper...
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    Jumpers in Altium Designer

    I crated Jumpers with this manual 1. Create the Schematic Jumper Component. I make standard schematics with PIN 1 and 2 , type set to JUMPER 2. Create the Jumper Footprints in the PCB Library I make standard footprint with PAD 1 and 2 , all pad set JUMPER ID =1 Nou I in schematic editor...
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    Flyback Power Supply Controllers and distance between switching transistor and TR

    Thank you for the explanation. Switching MOSFET have breakdown voltage 725V, over primary winding of the standby transformet is Clamp-to-Rail circuits. Capacitor 2,2nF and Zerer diode 150V see picture Diodes D3 Allow for Partial Recycling of Leakage Inductance Energy and Improve Efficiency. R1...
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    Flyback Power Supply Controllers and distance between switching transistor and TR

    I make standby switching power supply with Flyback Controllers on 135kHz 5V max 1,5A typical 600mA. Due to cooling in another power supply, must be between the switching transistor and transformer (EE16) distance about 60mm. It will be a big problem for the stability of the power supply?
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