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167 Threads found on 100 Khz
I2C speed is actually limited by the bus capacitance, although "cut-off frequency" isn't the usual term.You find respective calculations in the I2C specification by Philips/NXP. Due to the fact that the specification has fixed speed limits of 100/400 khz, bus capacitance isn't a problem for usual applications. SPI can be implemented with impeda
The superimposed noise will be noticed in the signal processing chain, whatever it is. Saying you have input signals with 1 Hz respectively 100 khz isn't much information. What's the effective bandwidth of succeeding signal processing? What's the spectral distribution of the noise? Can we expect white noise? Many technical noise sources like amp
Hi. What performance difference is to expect using a ferrite rod or an iron rod as wound transmitting antenna under 100 khz ? Would ranges be way different at a given -say 1 Watt- TX power, or not of major concern to reach 100 m distance?
from which point you are extracting the signal strength voltage ? after detector or any other? How did you measure it as 100/200mv?
Do you know if there is any kit or board modules in the hobby market to put together a pocket transceiver around 100 khz ? Voice modulation, range does not need to be greater than 100 m. Sort of a walkie talkie. Its antenna needs is not of concern.
I picture one operating at 99 khz, the other at 100 khz. Sometimes they act in unison, sometimes they are interleaved. I think the output is the same, for theoretical purposes. In practical terms interleaving has an advantage, because it reduces incoming current ripple, reduces output voltage ripple, and allows smaller filter capacitors.
Hi all I have a question about spread spectrum and its use with PLL synthesizer Let's say I have a clock source that is generating 100 MHz clock with 5000 ppm down spread with 33 khz frequency modulation profile. Thus, the minimum and maximum frequency from this source is 99.5 MHz and 100 MHz, respectively. Then let's say I have a (...)
Your frequency calculations are missing important points like relation of switching frequency and losses. Don't expect that you will make a buck converter with good performance an > 100 khz switching frequency. But you can try, surely instructive. Once you think about, you'll also notice that it's effectively impossible to achieve continuous pul
I see that you decided to build your own discrete SMPS controller. Which is supplied by a 4 volt regulator. Which means that at M1's gate, you'll have a driving voltage of about 3 volts.....Will M1 be fully enhanced with such a low gate drive? Also, you don't mention switching frequency. But if you are switching above 100 khz, X17's slew rate of
5 kV/?s at 100 khz sounds like a square wave. What's the actual voltage? As schmitt trigger mentioned, switching speed of triacs is several orders of magnitude slower than 100 khz. Limit switch spped doesn't necessarily exclude slow switching of high frequency signals. But a triac or SCR won't latch any more at (...)
microphone preamp will typically have a 20 khz lowpass filter built in, so you can only use it if you know your mixer output will be below 20khz. A typical balanced microwave mixer will have 100 mV Peak output when the LO port is driven by +10 dBm, and the RF port driven by 0 dBm. IF you drive the RF port with less power (as in a receiver (...)
I am testing a high frequency inverter PCB running at 100 khz. When I probe any node, for example DC Link voltage, load current etc. there is a lot of noise superimposed on the actual signal. The noise is simply switching spikes picked up by the probes but not actually present. The on-board ADC seems to read clean signals, but the scope displays e
The 100 ohm burden resistor should be placed after the bridge rectifier, not directly across the CT. That will eliminate all the lost voltage and linearity problems created by the diodes, provided the magnetics of the CT are up to the job. Specifying inductance is not enough. The magnetic core must not saturate with the total applied voltage, w
On page 3 of 3C90 data sheet Fig 6, "specific power loss as a function of peak flux density with frequency as a parameter". The graph is based on 100 Deg C temperature. What can i do to find the curves at 70 Deg C. Specifically i am looking for the Pv at 48.3 khz and 1600 Gauss (160mT) at 70 Deg C.
Could you please tell me if i connect driver IR2112 to the IGBT IRG4PF50W inorder to make high frequency 100khz inverter circuit to give AC voltage to induction furnace with resonance 10 khz (1.5 micro farad, 190 micro henry and 5 ohm) thanks eman
I would like to have a 5Watt sin generator with a variable frequency between 100 khz and 10MHz. Could you tell us a little more about the application? What voltage does the sine wave need to be at? What kind of load are you driving? When and how does the frequency need to change?
Hello I have any question about signal sampling theory. I have signal generated from DDS (10bit with good reconstruction filter) , signal is sinus of known frequency 100 khz. I need to know as precisely as possible amplitude and time zero crossing I have 12bit ADC with 5 MSPS (STM32F303). i.e. 50 samples per period or 1 sample/7,2 degree. Th
Hello All. I ordered a transformer for 48V input and 330V output. I want to know whether the provided values of the primary and the secondary inductances are okay or not? My primary current can go upto 21A. And the switching frequency is 100khz, 1000W. Attached is the document for the specs from the factory. Also I want to know that if the (...)
Carrier frequency of the shown power line remote control is 100 khz rather than 315 MHz. But the coupler could be basically designed similarly. You preferably operate the transformer in resonance. Air core or open ferrite core with a very few windings. I presume you know basic LC resonator formulas (or can review it on the internet). 315 MHz is
Hi, I am just in the process of understanding the best way to use my ATMEGA328P in low power mode. Currently it runs constantly at 4 mhz with an external crystal. The system runs the i2c at 100 khz and usart at 9600 baud. So am I correct in thinking, to swap the 4 mhz external crystal for a 32 khz and put the micro to sleep when (...)