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The switching is required in many applications at low as well as at high frequency. RF MEMS switches are the specific micromechanical switches that are designed to operate at RF to mmWave frequencies. MEMS switches usages some mechanical movement to achieve a closed or open circuit in the Radio...
Generating Sine wave is very demanded job in power electronics field. So do to me too. I read some topics over the internet and found many ways to generate a sine wave. As most of you are really interested in generating sine wave so I’m writing today about it here.
There is some different ways...
The following attached file contains an SSH Client extension
which I made for my own use, but it may also be useful for users of the MIT Application Inventor 2 (AI2) community, or even to the AppyBuilder community (code intrinsically compatible for the last one, but not tested). This is just the...
Spring-loaded pins are rapidly finding new applications in modular product design. Also referred to as SLCs (spring-loaded connectors), this product resolves many of the manufacturing issues like misalignment, coplanarity, and tolerance stack up that can plague traditional pins and sockets...
HSM-20G is one of the most common humidity and Temperature sensor. This sensor is fully analog type. The outputs are analog voltages rather than any digital signal.
The datasheet indicates that the output pins need some extra devices with it. here is the connection diagram:
From the...
In this project the vehicle is controlled by a mobile pone by using the DTMF tones.For more information about the project view the attached pdf file.
video link:
https://www.youtube.com/watch?v=IceLp3R_mPY&feature=g-upl
Ansys HFSS normally uses the scattering parameters convergence as a termination condition. Although, this does not necessarily mean that the solution converged everywhere, it is a fast and efficient criterion.
Few days ago, I was running the built in optimizer in HFSS searching for the...
Open MS VB6.0--->Standard EXE--->
From Toll box add a Command button to form.
Double click the button and write this code in the cursor space
MsgBox "Hello world"
There we go....save the project anywhere you want and press F5. Now click on the command1 button... :smile:
This is actually a continuation of my blog entry https://www.edaboard.com/blog/1628/ where I have used C language routine. Now its the time to use Assembly Language for PIC. The Code is tested on PIC16F84A with 4MHz crystal. Compiler used MCS-51 under M-IDE Studio.
The associated program...
In this blog entry I will show you how to use a 74HC595 to expand I/O pins using only 3 I/O pins of a microcontroller. The program is tested on a 16F876A at 20MHz.
The associated program shows how to transfer a byte data serially to the 74HC595 and then sets the output accordingly...
I read a small portion on Maxwell's equations in the second part of this book and I say that I have never read anything more interesting than this. It's really awesome by the way. The author is a well known personality. He is the Nobel Prize Winner Richard Feynman, who specialized in quantum...
Most microwave hardware is specified to run in a fifty ohm system. Why was this standard chosen?
50 ohms is a great compromise between power handling and low loss, for air-dielectric coax.
The arithmetic mean between 30 ohms (best power handling) and 77 ohms (lowest loss) is 53.5, the...
1.) seperate the power grounds, signal grounds, analog grounds, digital grounds, control grounds
2.) Keep inputs and outputs seperated and isolate to prevent oscillations
3.) Oscillation can happen from the inverting input and non-ineverting input of op-amps, coupling between parallel signal...
As is well known, solderability is very important for the printed circuit boards, we must do solderability test of each batch PCB we made. In this way we can inspect the weldability of the PCB before we go ahead the assembly process, much helpful for SMT.
Today we are going to discuss the...
Dear All
Hi
I came back again , with some good things !
And if you see i don't write all things at one , blog , the reason is that i want you think about things that i write carefully .
Before that , let me appreciate from "LvW" and "FvM " and "syncopator " , because of their friendly helps...
PRACTICAL CONSIDERATIONS
All this while, we’ve talked about the software side of things when dealing with the ADC. Now, it’s time to talk about the hardware side of things.
We’ve considered many situations in the discussions above. But not all of them can be used in your circuits.
One...
SEQUENTIAL STEPS IN ANALOGUE TO DIGITAL CONVERSION USING THE INTERNAL ADC
So, here are the steps to configure the ADC and carry out the conversion:
• Decide which pins need to be analogue, which pins need to be digital and which (if any) need to be configured as reference pins.
• Select the...
ADC pinout of PIC 16F877A
PIC16F877A has 8 ADC input channels. That means that 8 pins are multiplexed (connected) to the PIC ADC module. So, you can use the ADC module to convert analogue input from 8 inputs. PIC16F877A cannot do the conversions simultaneously, so it must be done one by...
Right/Left Justification continued
When you have a 10-bit number (range is 0 to 1023), if you divide the number by 4, you effectively just converted the 10-bit number to an 8-bit number. The new range is 0 to 255.
You should already know that bit-shifting a number to the right once is...
Acquisition Time
Before an analogue to digital conversion is to be started, a small amount of time must be allowed for the holding capacitor of the PIC ADC module to fully charge to the input level. This is how the ADC works and unless this minimum time is allowed, the ADC will give an...
Introduction
The ADC is used to convert an analogue input signal (an analogue voltage within a specific range) to a corresponding digital data that can be processed and used by the PIC. The PIC, without the conversion to digital, can do almost nothing with an analogue input (unless you use...
Following are some specifications :
CONTROLLER : 89v51rd2 (8051 variant)
CRYSTAL : 12Mhz
LCD : 16x2
USER INTERFACE : PUSH BUTTON SWITCHES
MISC. : DAC 0808 , plastic case , etc.
Just download the .txt file ;-)
Hello
This is an awesome site for DSP. (Make sure you switch on the speaker)
https://www.falstad.com/dfilter/
He also has applets for electronics
https://www.falstad.com/circuit/
This guy also has applets for maths and physics too.
https://www.falstad.com/mathphysics.html
See...
Stencil Types
Important print quality variables include accuracy and smoothness of the stencil aperture sidewalls. Maintaining a proper aspect ratio between stencil width and thickness is important. The recommended aspect ratio (aperture width divided by stencil thickness) is 1.5. This is...
Annular Ring
The remaining area of a pad after a hole is drilled through the pad. It is a circular ring of conductive foil and plating material.
AOI
Automated optical inspection.
Aperture
A description of the shape and size of the tool used to create a pad or track. The term comes from...
The maximum analog voltage you can give to your PIC (directly, without any divider) is 5V. So whatever analog signal you are trying to measure, make sure that the i/p volt to that pin should not exceed beyond 5V. If you want to measure voltage more than 5V, you should use resistor voltage...
Hi All
I came back again , as i promised .
Thanks for reading my blogs.
Well , the PWM ( pulse width modulation ) consist from DC component ( DC as message ) and High frequency components .
And SPWM ( sinusoidal pulse width modulation ) consist from message signal and high frequency...
There is a fact to mention about the resolution of the A/D converter. Since the converter converts the signals, it takes a certain time. The conversion time of the low resolution A/D takes less time than the conversion time of the high resolution A/D. You have to consider carefully : if you...
Hello,
finally I've got time to write some thing. Still going on design considerations about construction. So the time came to decide materials and type of construction. For a 3 axis cnc your workpiece needs to move in 3 axes perpendicular to each other marked as X, Y and Z. I'll take the...
Hi dear All
Thank you for reading my blogs.
I came back again ! ;-)
As i gave promise , i came back to continue about class D amplifier and SMPS !
See below , pictures , please :
Think about top photos !
Could you get my mean ?
If yes , good .
If no , no , don't worry ...
Hi Dear All
Thank you for reading my blogs .
As i promised , i came back with more discussions about class D amplifiers and SMPS ( Switch mode power supply) systems :
below you can see 2 picture , one of them a circuit to make PWM ( not SPWM ) and the other the waveforms .
As you...
I just saw this site on microwave communications while I was surfing the net. Its encyclopedia is really nice.
I thought it would help you all.
So I share the link here
https://www.microwaves101.com/index.cfm
As for any project first thing to make are design considerations. They are what actually makes your project look this way or another. There are quite a few things to consider.
For the first thing I had to decide was the actual porpose of this machine. the answer is that I want to be able to...
Hi everyone. This is the first post in this blog. The blog itself will describe my efforts to build a CNC Mill.
So maybe first something about me: I'm 25 years old. Half a year ago I've graduated masters degree in electronic engineering from Wrocław University of Technology in Poland...
PIC18F4550 is the one of most advanced controller form the Microchip Technology, mostly known for its USB functionality.
So Lets starts our USB Tutorial using PIC18F4550.
To make the things lot easier for newbie.
Compiler Used :- MikroC for PIC v5.30
Simulation Software :-...
Hi Dear All
When i learned the class D amplifier , i was , 16 years old . and the problem was that i tired from dissipative amplifiers such as Class AB and C . ( and all of the times i like learning new things )
So , i read many articles from big companies , such as International Rectifier ...
Code to display temperature on LCD 16x2 display using LM35 and Pic16F876A, 20MHz crystal
sbit LCD_RS at RC2_bit;
sbit LCD_EN at RC3_bit;
sbit LCD_D4 at RC7_bit;
sbit LCD_D5 at RC6_bit;
sbit LCD_D6 at RC5_bit;
sbit LCD_D7 at RC4_bit;
sbit LCD_RS_Direction at TRISC2_bit;
sbit...
After reading the following announcement I thought it might be of interest to forum members utilizing the 8051 and variants in their designs.
While the various Microchip PIC series of microcontrollers are well known and utilized by many of the forum members, the Microchip series of 8051 are...
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