Injection-Locked Oscillators
 

Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Injection-Locked Oscillators
 

On Wed, 28 Jan 2015 09:52:33 -0700, Jim Thompson
wrote:

Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson

James Authur is our local expert on injection-locked oscillators. He
seems to check out sed now and then. I have his email around here
somewhere if you want to ping him directly.


--

John Larkin Highland Technology, Inc
picosecond timing laser drivers and controllers

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

Injection-Locked Oscillators
 

On Wed, 28 Jan 2015 09:18:12 -0800, John Larkin
wrote:

On Wed, 28 Jan 2015 09:52:33 -0700, Jim Thompson
wrote:

Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson

James Authur is our local expert on injection-locked oscillators. He
seems to check out sed now and then. I have his email around here
somewhere if you want to ping him directly.

Yes, please. Thanks!

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Injection-Locked Oscillators
 

In article , To-Email-Use-
says...

On Wed, 28 Jan 2015 09:18:12 -0800, John Larkin
wrote:

On Wed, 28 Jan 2015 09:52:33 -0700, Jim Thompson
wrote:

Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson

James Authur is our local expert on injection-locked oscillators. He
seems to check out sed now and then. I have his email around here
somewhere if you want to ping him directly.

Yes, please. Thanks!

...Jim Thompson

Injection is the method of injecting a periodic signal that
causes a free running signal to align at that moment and thus
the injected frequency and vco if you have it, will run together
in time.

example.

A flip flop circuit that is operating at high frequency can
receive a periodic pulse on one of its inputs forcing the flip
flop to restart itself and thus following output of the FF is
aligned, for a while anyway..

Put it in Phils H. terms, the injection forces the VCO to wiggle
one way or the other! :)

Jamie

Injection-Locked Oscillators
 

On 01/28/2015 05:52 PM, Jim Thompson wrote:
Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson


Perhaps not the tutorial that you are looking for, but I had this on my
list of links on the topic
http://rfic.eecs.berkeley.edu/~nikne...ionlocking.pdf

Injection locking is a nonlinear phenomenon. Topics which are inherently
related to this are stability, bifurcations... Some years ago we
investigated injection locking on a switched oscillator, with the
objective of replicating a "synchronous oscillator", a nice circuit
proposed by a guy named Uzunoglu.

Hope this helps!

Pere

Injection-Locked Oscillators
 

On Wed, 28 Jan 2015 09:52:33 -0700, Jim Thompson
wrote:

Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson

There are a lot articles about injection locking (microwave oven)
magnetrons. The first search result for "injection locking" and
"magnetron" points to an IEEE article and at least according to the
abstract, contains also equations for oscillators in general, not just
magnetrons.

Injection-Locked Oscillators
 

On Thu, 29 Jan 2015 09:43:10 +0100, o pere o wrote:

On 01/28/2015 05:52 PM, Jim Thompson wrote:
Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson


Perhaps not the tutorial that you are looking for, but I had this on my
list of links on the topic
http://rfic.eecs.berkeley.edu/~nikne...ionlocking.pdf

Injection locking is a nonlinear phenomenon. Topics which are inherently
related to this are stability, bifurcations... Some years ago we
investigated injection locking on a switched oscillator, with the
objective of replicating a "synchronous oscillator", a nice circuit
proposed by a guy named Uzunoglu.

Hope this helps!

Pere

Thanks! Nice one!

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Injection-Locked Oscillators
 

On Wed, 28 Jan 2015 09:52:33 -0700, Jim Thompson
wrote:

Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson

Fun thing discovered this morning. We make a 4-channel ARB that uses
THS3201s in the output stages. All four amps are oscillating at 1.408
GHz. That's exactly 11x the 128 MHz DAC clock; looks like a
cooperative, injection-locked oscillation.

We'll replace the amps with THS3001s. That will cost us a fraction of
a dB at 30 MHz sinewave out.

Moral: don't use more opamp than you have to.


--

John Larkin Highland Technology, Inc
picosecond timing precision measurement

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

Injection-Locked Oscillators
 

On Thu, 12 Feb 2015 10:40:54 -0800, John Larkin wrote:

On Wed, 28 Jan 2015 09:52:33 -0700, Jim Thompson
wrote:

Where can I find a good tutorial on Injection-Locked Oscillators?

All I can find are application-specific papers, and I need just the
basic concepts to wrap my head around.

...Jim Thompson

Fun thing discovered this morning. We make a 4-channel ARB that uses
THS3201s in the output stages. All four amps are oscillating at 1.408
GHz. That's exactly 11x the 128 MHz DAC clock; looks like a cooperative,
injection-locked oscillation.

We'll replace the amps with THS3001s. That will cost us a fraction of a
dB at 30 MHz sinewave out.

Moral: don't use more opamp than you have to.

or find a way to 'run' at an ideal 'locking frequency', and use the whole
thing to your advantage.

Make a better camera flash storage cap charger with it. :-)