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Thanks guys,
I'll try that. I'll try capacitor divider and probably some experiments with >10k resistor. Because I need also 1.6MHz signal to pass through. Moreover I need not to change signal phase, it will be done with proper cutoff frequency.
Hello,
I have signal of 1MHz frequency and 100Vpk. I need to step it down from 100Vpk to 1Vpk, so 100:1 attenuation. It's not power signal, just feedback signal from winding.
I think there are few solutions:
1) capacitive divider (I would rather avoid it)
2) resistive-inductive divider
3)...
fast avr for nokia display
Negative, I always run LCD on 5V because my AVR is also 5V and it works well. Since I reset LCD through AVR there is no problem. When I reset it manually by my hand, it's not fast.
screen problem nokia 3310
LCD do not blink after Vdd is connected. Instead you need to restart controller to some time to let controller set the charge pumps. I destroyed one display because I didn't reset controller in time. Be careful of this!
Controller can also run at 5V as well ;)
boosting voltage regulator
It's not sufficient amount of information.
See ... at the page 6. Equation VO = Vi/(1-D)
https://focus.ti.com/lit/an/slva061/slva061.pdf
It assumes Vds, Vd and RL are small enough to ignore them. Second thing is the inductor design (core material etc.)
what is the vcc supply for ir2110
But point is whether the parallel MOS or body diode is fast enough to catch these spikes. Body diode shouldnt be fast enough.
h-bridge mosfet circuit
I think you need another high-side driver. Not exactly Vgs = GND is always solution. Maybe if Vgs of high-side transistor Vgs = 0V is better solution. This means you need to switch MOS between G and S instead of G and GND.
h bridge mosfets
Because you need to connect transformer to H-bridge diagonal (between Q2 and Q4 drains). No need for centertapped transformer. And disconnect Vdd from transformer CT.
Transistors Q1 and Q4 are switched together, then conductivity is reversed to Q2 and Q4. You need to proper...
design small power smps
Hi,
Why did you choose push-pull topology for 10watts? I would rather use simple flyback. It's smaller, no need for driving 2 transistors etc. You can use more space for filtering instead for transistor. I would select controller with integrated switch.
Discontinuous...
h bridge mosfet circuit
I cant understand what you wanna help with? If you want to make 120V from 12V, just use 1:(10) ratio step up transformer. If you wanna know inductance, search for some equations in google. There's plenty of it.
You will design it using usual step down topology (even if...
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