A step up from the 2 transistor bias circuit above is the active regulated circuit from motorola that works great for thermal & load regulation,
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Bias Is Really Just B(ia)S
- Thread starter SuperLid
- Start date
I'm not going to recreate the original post so you'll have to follow the link. I will however offer a small teaser.
First, for you hollow state guys and girls...
That gcode is still around somewhere...
NXP
The details are available from NXP for no more than a free account.
It's just numbers.
First, for you hollow state guys and girls...
and the rest of the candy store
Then our old friends Victor and Yana
eb104.ru
But wait,
www.vk-amps.com
I'd be looking...
Then our old friends Victor and Yana
List of products
1.8-54 MHz power amplifier completed: NEW! Module HF/6m linear amplifier 2000W…
But wait,
1000w LDMOS Linear Amplifier 50v 1.8-60Mhz 4 x MHT1803 Pallet
1 KW LDMOS 1.8 - 60MHz power amplifier board fully assembled. The board comes with new devices installed from Digikey onto copper. The boards are made of 2oz copper traces. This amplifier pallet is capable of up to 1KW MAX. Comes fully assemb...
www.vk-amps.com
I'd be looking...
This was buried in another thread and deserved it's own place.
Amplifier Class Description Conduction Angle
Class-A Full cycle 360o of Conduction θ = 2π
Class-B Half cycle 180o of Conduction θ = π
Class-AB Slightly more than 180o of conduction π < θ < 2π
Class-C Slightly less than 180o of conduction θ < π
Class-D to T ON-OFF non-linear switching θ = 0
Lets get some fundamental myth out of the way .
Solid-state amplifiers cannot be class "AB1" or class "AB2". A bipolar transistor amp cannot be a sub 1 or sub 2 class...
Amplifier Class Description Conduction Angle
Class-A Full cycle 360o of Conduction θ = 2π
Class-B Half cycle 180o of Conduction θ = π
Class-AB Slightly more than 180o of conduction π < θ < 2π
Class-C Slightly less than 180o of conduction θ < π
Class-D to T ON-OFF non-linear switching θ = 0
Lets get some fundamental myth out of the way .
Solid-state amplifiers cannot be class "AB1" or class "AB2". A bipolar transistor amp cannot be a sub 1 or sub 2 class...
That gcode is still around somewhere...
NXP
The details are available from NXP for no more than a free account.
It's just numbers.