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Not enough power to drive a mechanical relay though. Depends on the relay size. CT with up to a few W output are feasible. Sensitive relays switching 250V/10A have 0.5W nominal coil power, signal relays considerably less.
51dB (voltage) gain is A=355 A=gm*Rout assume best case Rout=Rload Then gm must be 355/50K or 7mA/V If you can find a transistor with this kind of gm and decent Early voltage then a single CE stage could do it. If Early voltage is a problem then cascode it (CB over CE) Of course input impedance match will cost some base current so you will
Hi, I have designed a temp controller. The temp from the sensor is measured and amplified. I have an relay in my circuit. The relay is connected with the Analog port, but in different pin. Whenever the relay gets turned on the ADC value gets increased. The voltage reference is same at all instance. The chip i have used : Atmega3208.
One way is to attach various resistors and measure AC volts. That gives you an idea when the secondary output voltage starts to drop, thus letting you know how much power you can get from your rewired transformer. It's too risky to directly attach an ammeter. It has very low ohms. (My DMM's have a 10A range, made possible by a thick wire shunt abo
+1 What Klaus just mentioned. Before the advent of rail to rail opamps, one had to procure a negative supply, a big hassle for battery operated products. Nowadays, with the proliferation of R2R opamps, both input and output, that is no longer necessary. As Klaus mentions, generate a "virtual ground" 1 volt above the battery's negative voltage.
Hi. The FIR should not create DC. But for sure the values are multiplied wit 2^17, thus the output signal will be multiplied with the same factor ... the input DC, too. Klaus
The issue is lack of understanding the testbench. First of all use ac amplitude set to 1 not 1m. In closed loop simulation, you should achieve transimpedance - relation between output amplitude vs input current. This function should in first order follows the feedback. So, 3kOhms of gain (70dBOhms) in dc with pole at RfCf. The impulse response will
Hi, Recently, I got this BLE v5 dongle , I plugged it to an ubuntu machine and started to check it using these commands $ sudo hciconfig -a No output $ sudo hcitool dev Devices: $ sudo hcitool lescan Could not open device: No such device But linux c
Suggestion: an analog calculator. One or two voltage inputs and one voltage output. You could implement add, subtract, multiply, divide and possibly log and square root functions by using op-amps in different combinations and with different feedback elements. Brian.
I am trying to use a Colpitts oscillator followed by a common collector buffer to provide the sine wave to a bridge circuit (I plan to use the bridge to roughly measure a varying capacitor - C8). The output impedance of the oscillator and buffer is fairly low (if I have calculated it properly in LTSpice). 157335 When I
I'm (barely) curious why you "need" to use inferior technology. If I had to guess, I'd guess this is a school project and somebody else gets to set the boundaries and criticize the BOM. Your easiest regulator will be a zener + (N) forward diode stack, followed by a Darlington NPN pair. You can find zeners in pretty fine-binned breakdown voltag
So I want to see what are the input patterns of the design which has an output of stuck at 1 at the output named 'outtt' of my behavioral verilog code (of course which I later synthesized)...what should be the appropriate commands for tetramax for this? :?:
It is a useless datasheet that does not show a circuit and does not show the input and output capacitors that every other voltage regulator uses.
It took me some time to realize that capital S in your formula actually means lower case s respectively jω. It's ok to draw Vout=0 as a short, but then Iout is the current through this short and the current source should be omitted. The simple meaning of this setup is: You are shorting the source follower output, inject a current to th
Hello, attached is the transient pic of the fully differential amplifier I have designed, if you look to the vo+ and vo- you will see the sparks on it, however the differential coltage is clear due to the subtraction, my question, should I be concirned about the individual outputs or only have to look to the differential output (Vo_diff)
Hi, I'm using a TPS54528 voltage regulator to get an 1.05V output, the input is 5V. However once I apply some load (eg. 1.5 Ampere) I get a 16khz spike on VIN (the closer I go to the chip pin the bigger the spike will be). So since it's 16khz it will result in a high noise, and since some other regulators are also attached to the 5V rail the
Hi, I have been going through an application which requires 62A high side output with around 80A peak current support for 10s for an automotive application. Im checking one part BTS50055-1TMA from infineon. There seems two specification IL(ISO)=70A and IL(NOM)=17A. Im not sure which one to follow. Will this device suit my purpose. Im clueles
Hi, Confusing. I can't find out what is input and output at the box "SMPS"? Left side or right side? Please use arrows for input and output. On all boxes. All power signals seem to be DC...but then you use an "opto-triac" which is for AC. Please explain. Klaus
I have a cooktop which SMPS is bad. It should produce 24VDC but it only does 16V. Here is a schematic with a very similar topology. It works with a TOP254GN IC. For first I tried to change 3 main components as all other parts looks fine and as these 3 tend to fail on this panel as I read on forums: - D6 Diode (original SMD mark: T4X5) -> r
A voltage doubler can provide your step-up ratio, almost 2x. Two voltage doublers acting symmetrically provide AC to the load. Simulation using Nakagome type. 157296 Bias was adjusted to transistors so that current draw stays under 9A. To obtain sinewave output, add PWM and/or filtering. - - - U