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sometimes you want to know the resistance of a running circuit, some components have different resistance in off or on state, like MOSFETs or bjt, how can I accomplish it without ruining the circuit? it will be useful to calculate the dissipated energy of a continuous circuit and its efficiency though.
It's unlikely your LDO will respond to the digital switching transients (orders of magnitude slower control loop. than technology edge-rates). You will depend on some filter bank to "soak up" the impulse energy. Since the current is likely unidirectional (as seen by the LDO pass transistor) "average" is as good as "RMS" as far as I'm concerned
Simply you can not understand S-parameter at all. You ignore current. It results in ignorering impedance. Can you understand energy conservative model and signal flow model ?
... a decrease in voltage to snapback voltage means a quick drain of collecter voltage or something else. Once the n-p-n turns on means it is conducting and so presents a low resistance to the ESD event. Such an ESD event owns a certain energy E = ∫V(t)*I(t)dt , which is dissipated in that n-p-n t
You're probably expecting too much. Snubber or varistor won't eliminate contact arcing completely, just reduce it. Right. The total energy stored in the motor is being dumped on the capacitor and resistor. With a 1/2 HP motor, that can be significant. Because the load is supplied with AC, we do not know at what point the r
Hi, Sure you mean EMC? Your description rather sounds like "ESD" or "Surge pulse" .... EMC is high frequency. You may protect against EMC problems by using a low pass filter. ESD is high voltage, with relatively low energy. You may protact against ESD problems by using a ESD protection diode. Surge is not that high voltage as ESD but with muc
ADE7878 is a latest version of ADE7868. ADE7878 is not recommended for new designs, ADE7878A ist the recent type. I agree with KlausST. You need a poly phase energy meter IC to support 3-phase measurement, there's no reason why it can't work for single phase as well. Available interface is SPI or I2C.
Hello, The following rectifier is working on 2.4GHz band with input power equal to 60mW which is approx equal to 17.5 dbm. the results and schematic are attached below. My question is : How can enhance the circuit so i can make it give the same result or close to it with lower input power as example (-10 to 0) dbm ? My project
I am designing an energy harvesting system with ring oscillator, non-overlapping clock, and tapered buffer. Shown below is the the clock results and tapered buffer results of the three corners TT, FF, and SS. I was just wondering what causes the poor peak voltages of the tapered buffer results, I expect it to be flat but it is not. Thank you so muc
Hi friends It seems to me that fundamental electric theory is no longer taught in school, which is a shame as it results in everyone having their own intuition and interpretation about it, leading to silly and time wasting discussions which everyone would be better without. In an attempt to rectify this, I have found a youtube video that disc
In 5G instead of radiating energy in all the direction, a group of antennas that’s called Antenna Array, will focus data signal only to communicating device, so signal strength will be very high. This direction of data signal we called it Beam, is controlled by managing amplitude and phase of the data signal in each antenna elements in the a
The case where load is energized and then power is discharged could apply damaging reverse bias to the NPN. Low current reverse breakdown may only drift Vbe and cost low current beta - hot carrier charging of emitter-adjacent oxides. However I've done a fair number of circuits that use "zener zap" as a trim method, and this consists of milliamps
Anyone knows that whether there are some LED diode with forward voltage less than 1V, and the forward current is less than 20mA? Current is not the issue, it is the voltage drop. That is the barrier energy. Say you have a forward drop of 1V. One electron crossing the barrier will get an energy of 1 eV - this is in energy terms app
It should work and control an INCANDESCENT light so it gets brighter as less light falls on the LDR. Do not try to use it with low energy lamps as most are not dimmable. Beware that the whole circuit is 'live' so all parts of it must be insulated from being touched. Also try to keep the LDR away from light emitted by the lamp. Brian.
Hey everyone, I am currently working on a RF energy harvesting project. And I am using ADS to simulate my circuits, which is a voltage multiplier and a boost converter. have managed to simulate both circuits separately, and they work perfectly. However, I have a problem when i combine the two circuits the output of my boost converter becomes zero,
It is just a matter of absorption efficiency of gases along with their concentration in Atmosphere, in fact all gases absorb energy from EM waves, however CO2 in particular, has a maximum absorption efficiency close to the wavelength of the outgoing wavelength that emanates from the Earth's surface. Note that the energy coming from the S
Hello, i am undergrad student and my final year project is about RF energy Harvesting. but i am facing problems by using ADS i did some schematics from different published papers but i don't know what kind of parameters should i use or even how to get the efficiency of the rectifier. Also should i do the matching impedance with antenna after
Hi, I donīt understand. Isolated but with no switching regulator. Due to the RS-422 you need energy to drive the 50 Ohms impedance signal lines. Where does this energy come from? Battery? Solar cell? Klaus
Supply of own rechargeable batteries from Carlos F. Benitez by Peter Lindemann, D.Sc. Supply of own rechargeable batteries from Carlos F. Benitez by Peter Lindemann, D.Sc. NOTE: This machine was demonstrated at the energy Science & Technology Conference (ESTC) 2018 but there was no formal presentation. It was only explained to participants who w
I want to write a code for a system which detects the absence of AC signal ,received after the digital filter (sampled @ 200khz). My ideas 1. level detector - If level is zero - no ac signal.(I liked it the most but struggling to come up with logic:bang:) 2. Continuously measure frequency of signal,but would need to increment counter for 1 sec