LongRangeLocators Forums  

Go Back   LongRangeLocators Forums > Main Forums > Long Range Locators

Reply
 
Thread Tools Display Modes
  #1  
Old 07-25-2013, 09:23 PM
mustefa ubram's Avatar
mustefa ubram mustefa ubram is offline
Guru
 
Join Date: Jun 2012
Location: Germany-Hanover
Posts: 320
Smile signal boost with mosfet

hi to all freinds
I got a boost signal with n-channel mosfet .in drin mosfet pin I have a 600 volt pp.
Question:
1-Waveform is in drin mosfet pin Similar image 1.If want me to look like Figure 2.How should I act?
Attached Images
  
__________________
Knowledge is the greatest wealth
Reply With Quote
  #2  
Old 07-25-2013, 09:59 PM
goldfinder goldfinder is offline
Guru
 
Join Date: Apr 2005
Location: Southern Arizona
Posts: 254
Default Don's turn off the Pulse so fast

To get a real square wave you need to give the signal a little more time before it is turned off. I assume you are controlling this digitally.
Goldfinder
Reply With Quote
  #3  
Old 07-26-2013, 12:21 AM
mustefa ubram's Avatar
mustefa ubram mustefa ubram is offline
Guru
 
Join Date: Jun 2012
Location: Germany-Hanover
Posts: 320
Default

Quote:
Originally Posted by goldfinder View Post
To get a real square wave you need to give the signal a little more time before it is turned off. I assume you are controlling this digitally.
Goldfinder
My signal generator with a 555 with Pulse width 50us_750us
frq is 50hz_ 250hz
now :
Please explain a little more to get a true square wave form.???
question:
The MOSFET operates at higher frequencies .example: 10kh or 20kh ?
MOSFET with a sinusoidal signal is activated?
__________________
Knowledge is the greatest wealth
Reply With Quote
  #4  
Old 07-26-2013, 10:11 AM
Dave J. Dave J. is offline
Guru
 
Join Date: Nov 2010
Posts: 265
Default

Our local Zaragoza School of Mechanical Engineering has a real simple entrance exam.

First, the accounting dept. does a wallet biopsy. Can the applicant pay, or not?

Then the Dean asks the applicant "Please explain the difference between a round wheel and a square one". If the applicant seems utter perplexed by the question, the Dean dismisses the applicant, but offers that for $5,000 a fake diploma from some other University can be provided.

Only those applicants who know that wheels are round and can provide an explanation why square ones don't work, are accepted. The instructors have no classroom time available for students who have so little insight into the subject matter that they will flunk every semester and meanwhile waste classroom energy that could have been more profitably expended on students with learning ability.

--Dave J.
Reply With Quote
  #5  
Old 07-26-2013, 04:00 PM
goldfinder goldfinder is offline
Guru
 
Join Date: Apr 2005
Location: Southern Arizona
Posts: 254
Default Right On Dave

Quote:
Originally Posted by Dave J. View Post
Our local Zaragoza School of Mechanical Engineering has a real simple entrance exam.

First, the accounting dept. does a wallet biopsy. Can the applicant pay, or not?

Then the Dean asks the applicant "Please explain the difference between a round wheel and a square one". If the applicant seems utter perplexed by the question, the Dean dismisses the applicant, but offers that for $5,000 a fake diploma from some other University can be provided.

Only those applicants who know that wheels are round and can provide an explanation why square ones don't work, are accepted. The instructors have no classroom time available for students who have so little insight into the subject matter that they will flunk every semester and meanwhile waste classroom energy that could have been more profitably expended on students with learning ability.

--Dave J.
It doesn't get much simpler does it? How do you explain time to an idiot?
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 10:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.