hey guys i,m new to this forum and Lt spice
I am planning on building a FM bug using hardware,
i am trying to simulate this circuit using LTspice
In simulation i am replacing the microphone with a voltage source of 10mV and 2kHz then removing 68k resistor.
simulation file is attched.Kindly...
I don't know exactly on designing H-bridge motor driver using BJT. I have no idea in selecting BJT's for required specification and selecting current limiting resistor values. Is it required to use zener diode as a protection to the circuit? Kindly guide me.
Thanks & regards
I am facing issue with TPS61240 as a buck-boost converter. I am using TP4056 to charge the battery and DW01 (and FS8205) to protect the battery by referring this blog.
Also, note that I want to operate the other module; due to this I am using this below shown circuit to high/low...
Hello guys , i am a novice engineer and i have an old linear power supply for a video door phone system.
The P.S. has a 12VAC output (good) , a +15VDC output (bad) and a +18VDC (good). DC outputs share same GND.
The problem is when there is no load on GND and +15VDC output i measure a voltage...
I tried to solve the equations I got but when I make substitutions I get to a deadlock where I can't substitute anything anymore.
The equations I obtained are:
Could someone help me understand step by step what...
So basically I’m trying to create my own electromagnets and conduct my own experiments. I’ll have an arduino microcontroller send a current into the wire that is coiled around the magnet, thus increasing the strength of the magnetic field, which in turn will touch with other magnets. I want to...
I’m helping my daughter with a design project and part of it needs a simple led control circuit. Using a single push button and 4 leds, I need an ic circuit that would light led 1 with th e first button push, led 1 &2 with the second, led 1,2,&3 with the third button push, leds...
I'm Nayan and I am working on a project to control the reverse flow of current and voltage of an AC power source from a small inverter circuit. This would be helpful to connect an On-Grid solar inverter to stop the feed-in mechanism to the reference power source to run the inverter in power...
I am using seven segment in my project and i was using common cathode and using npn transistor i was able to switch by making arduino pin HIGH.
But now i want to display the data on seven segment when i make the pin as LOW. I mean i want to select the Segment when i will make it LOW.
In cyclic voltammetry application (as per circuit design given in image), the voltage difference between reference electrode (RE) and working electrode (WE) will be constant.
As per REDOX process (Reduction & Oxidation), the current will flow between counter and working electrode.
I am using a relay to turn ON/OFF the AC load. But when i turn ON and turn OFF the AC load (230 VAC) 3-4 times my controller gets hang. Here is my circuit diagram for the relay.
The ground is common in all over schematic.
What changes do I need to do for improving the noise?
I am running a project using a thermistor. I started by using the evaluation board as shown:
The program runs fine. After that, I removed the module from the evaluation board and powered the module using an external power source (3V).
I moved the resistor and thermistor from the evaluation...
I am developing simple circuit where I am trying to detect pressure when arms coming together when hand bended. the device will be placed near the L bow of hand and when user bend the arm, the device measure the pressure and beep if pressure is higher than set limit.
I know micro controller...
I am currently reviewing this Degson DG2002-4.0 connector.
May I know what does the arrow above the connector mean?
And what do the holes beside the arrow does? Based on the photo below, there is this operating tool which can be...
I need to design this circuit with a gain of 26 for signals where the frequency varies from 800Hz to 8kHz and I also need to find out the current on the RL load. (VA = 100mV)
Will C1 behave like an open circuit in ac analysis?
I am getting to lower the frequency (800Hz) but I am not able to...