Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Drivers, Test-load, Power Supply, & Batteries



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 03-19-2011, 11:52 AM #33
ravenit's Avatar
Member
 
Join Date: Mar 2011
Location: Adelaide, Australia
Posts: 34
Rep Power: 0
ravenit is on a distinguished road
ravenit ravenit is offline
Member
ravenit's Avatar
 
Join Date: Mar 2011
Location: Adelaide, Australia
Posts: 34
Rep Power: 0
ravenit is on a distinguished road
Default Re: Help Building Test Load

Actually you will need to adjust your pot to achieve 300ma across the resistor
See this clip explains it more.
YouTube - Part 2 - Tutorial - Measuring Current on the rkcstr MICRO-DRIVE Laser Diode Driver


ravenit is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 03-19-2011, 12:50 PM #34
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,727
Rep Power: 40861
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is online now
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,727
Rep Power: 40861
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: Help Building Test Load

Quote:
Originally Posted by ravenit View Post
Actually you will need to adjust your pot to achieve 300ma across the resistor
See this clip explains it more.
YouTube - Part 2 - Tutorial - Measuring Current on the rkcstr MICRO-DRIVE Laser Diode Driver
Actually the meter will read 300mV across the Test Load resistor
with 300mA of current through that 1 Ohm resistor.

In the video he is not measuring across the Test Load resistor.
He is measuring the current draw from the batteries to the Driver
and test Load across the switch.


Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 03-19-2011 at 12:56 PM.
lasersbee is online now   Reply With Quote
Old 03-20-2011, 01:13 AM #35
ravenit's Avatar
Member
 
Join Date: Mar 2011
Location: Adelaide, Australia
Posts: 34
Rep Power: 0
ravenit is on a distinguished road
ravenit ravenit is offline
Member
ravenit's Avatar
 
Join Date: Mar 2011
Location: Adelaide, Australia
Posts: 34
Rep Power: 0
ravenit is on a distinguished road
Default Re: Help Building Test Load

Ah yes my error mv across resistor ma across switch with switch off. (current flow) it was a long day lol
There is a part 1 of the video and he shows both ways
ravenit is offline   Reply With Quote
Reply





Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 12:14 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC