Gazoo
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- Joined
- Jun 9, 2007
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Daedal said:Those are some real nice curves I'm seeing there! I'm really looking forward to this. I really can't believe how efficient this diode is. At an Iop of about 260-270mA it's putting out 250mW. At 2.5 V that's better than 3-to-1! This means very little heat dissipation as opposed to some other diodes (like Blu-Ray :-?). That is definitely a very good thing
By the way, speaking of the Vop, any voltage above the operating voltage simply dissipates into heat, right? So... for ideal conditions, diode voltage needs to be at or very well near 2.5V... do I have this all wrong? I knew I should have paid more attention in my electronics class
Thanx;
DDL
Let's put it this way. The diode will dissipate heat at 2.5 volts, and also remember we are not running these with pulsed power. The higher the voltage, the more heat dissipation. The key is to keep the diode as cool as possible or the diode will heat up to the point it starts to drop in output. This has been my experience with diodes I have worked with.
The specs on these do look nice. With an operating voltage of 2.5v the current will be around 130ma, with an output of 80mw cw. So with a current of 300ma., if properly cooled these diodes should easily deliver around 200mw cw. These seem to have a better efficiency than the ones I have experimented with. Where the current to output ratio is 3/2 for these, most of the ones I have seen and worked with have had a ratio of 2/1. Since SenKat has samples, perhaps he can confirm this but I do doubt the Sony specs are wrong. However note the temp on the specs of 25C or 77F.