Re: 1mW laser driver and safety
- From: Phil Hobbs <pcdh@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 07 Feb 2006 13:19:00 -0500
Elektro wrote:
Hello
I need to find a laser driver circuit that can drive a laser diod
emitting 1 mW. The laser will be driven with 70 kHz and 50% duty cycle
(that is a peak of 2 mW).
The laser power should be regulated with a DA-converter, preferably
adjustable from 0 to about 1 mW.
And I need some laser safety that shuts down the laser in case of
malfunction. Maby some kind of watch dog timer circuit.
So what options are there (preferably IC-circuits)?
What wavelength? A 2 mW visible laser is class 2, so you might not need an interlock. As for the watchdog, you can use a retriggerable monostable, but you'd have to have something to drive it with, e.g. a spare MCU pin.
Cheers,
Phil Hobbs
.
- Follow-Ups:
- Re: 1mW laser driver and safety
- From: Don Klipstein
- Re: 1mW laser driver and safety
- References:
- 1mW laser driver and safety
- From: Elektro
- 1mW laser driver and safety
- Prev by Date: Re: For the Windoze haters - VS2005
- Next by Date: Re: question for CANADIAN engineers
- Previous by thread: Re: 1mW laser driver and safety
- Next by thread: Re: 1mW laser driver and safety
- Index(es):
Relevant Pages
|
