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183 Threads found on Capacitive Load
I know it wasn't Buckeroo Odgers, Booster Hupp, the Bipolar Sisters, Fred Ward or Khan Vhurter ;). we're prttery sure , weren't any of them. I wish I had nickel for every time that I though I invented a design, only to find out someout else already did it. Like the Emitter Coupled Oscillator with a capacitive load.... Good luck in your rese
I don't agree with the assumptions in post #1. - OPA197 can drive larger capacitive load in large signal operation, guaranteed output short circuit current is 65 mA versus 30 mA for LT6220 - OPA197 has specifications for capacitive load without series ("isolation") resistor, LT6220 is only specified with minimum series (...)
Clock feedthrough is a general effect appearing in switched analog circuits. Charge sharing is a specific effect in circuits where a storage capacitor is switched to a capacitive load. In the below link, both effects are clearly distinguished [ATTACH=CO
When an opamp output is not clipping then as it becomes more and more unstable by a capacitive load then the edges of a square wave show ringing (damped oscillation). A sinewave will fade with a damped oscillation when its input is abruptly stopped. Many audio opamps become unstable when a normal shielded audio cable is connected to its output. Si
Hello, Attached is a picture of an opamp with capacitive feedback. I think the load seen by the opamp is = Cf + C1 + diode ON resistance. Is this correct ? How do I determine the stability of this circuit in Cadence or any spice simulator ? Thanks.
hi Buffer will isolate the output loading from your circuit. The loading can be resistive or capacitive loading. Buffer provide high impedance at the input and low impedance at the output. The maximum gain of the buffer is 1.
For starters, this is RF so you should not be trying to drive a capacitive load but a matching network with a better characteristic. I would also say you'd be lucky to get a complementary amplifier to work, but a real differencing amplifier with the output also true differential to me seems less likely. And feedback any more complex than source
Unnecessary capacitive load.
Can't you use hardware SPI instead of bit-banging to send the data? My suggestion was to try the settings in post #6. If they have any effect you are probably motivated to read about prefetch and caching. 8-O , after changing settings according to yours now i can see 4 MHz . But signal is little weird , what is the reas
Are sure about the connection of the 10pF capacitor? Normally, such an additional feedback capacitor is connected directly at the opamp output. In this case, the additional resistor (RT=100 ohms) can stabilize the amplifier circuit against heavy capacitive load impedances CL. The principle is as follows: The resistor RT=100 ohms forms - toge
Need a perfect capacitive power suppy for three bt136 control by pic 12F675
It's almost impossible to get an exact replica of the input shape while driving a capacitive load. You could try moving the feedback resistor to the other side of R18 so the changed wave shape is included in the feedback voltage. Brian.
It depends on what the circuit drives next. The most likely reason is it's there to isolate the output of the op-amp from a reactive load. If it was left out and a capacitive load or an inductive load was applied it could make the circuit unstable or too much output current might flow. Placing it inside the feedback loop (...)
... what is capacitive load imbalance ... In which context?
Since your x2 Op Amp has a bandwidth of around 1MHz driving a capacitive cable load plus termination, it could be oscillating and you are hearing the thermal noise in the output stage. load the output with something like 0.1uF in series with 100 Ohms to ground ~ 50kHz Although the 220 Ohm series R ought to prevent this. So layout, (...)
From what I have seen in simulations, it works okay when you choose L and C so they yield the same impedance as your resistive load. Use formulas for inductive and capacitive reactance, below. (X is impedance.) X_L = 2 Pi f L X_C = 1 / ( 2 Pi f C ) By varying the values, you can shape the waveform. You can alter (a) its amplitude, and (b) simil
I am designing a passive analog filter for Digital to analog conversion. But i am stuck at one point. My load is not purely resistive. Actually i have to drive a piezo with my circuit. Piezo is an inductive and capacitive load. I don't have any idea about how to design filter for such kind of load. Could anyone tell me the (...)
hi As you said we need to keep the opamp in voltage follower configuration and keep varying the resistive load until the voltage drops. what in the case of capacitive load,what should we do here in order to measure the output current? See for reference
how to find out the maximum CL that can be considered across the op-amp? in which configuration we have to use the opamp in order to find out the maximum CL and IL? To know more, find and read the complete specifications of your opamp. Many indicate what happens when the load is capacitive, and some opamps a
Hi, I am designing a Flyback converter. I want to understand the inference of stability analysis related to power supply. 1.What is the meaning of a stable system? Stable means a step load won't cause lots of ringing or oscillation from a non-linear or capacitive load or any desired load it