Current starved inverter

[shico90]

Hello,
I wanted to ask about current starved inverter, what is its main function and what is its circuit, I can't find any information about it on the internet, please help
Thank you

 

[blueroomelectronics]

10,000 hits with Google.

 

[shico90]

10,000 hits with Google.

none of them leads to information about the starved current thing

 

[tcmtech]

Yep 10800 hits in .33 seconds and none of them I looked at really explains much of anything as well.

From what I could get from any or its they are related to voltage controlled oscillators and/or related to phase locked loop systems.

Until today I don't recall having ever heard the term current starved inverter before.

 

[ronv]

This site has a lot on it. **broken link removed** characteristics Current starved inverter
When you figure it out could you explain it in 100 words or less? =)

 

[MRCecil]

You can get your answers from this paper. A circuit example is shown in figure 13:

https://www.electro-tech-online.com/custompdfs/2010/12/Devon_Sanjeev.pdf

 

[RCinFLA]

It is easier to just reduce the Vdd voltage on a CMOS inverter to increase its propagation delay. This includes the gate drive which is where most of delay change occurs due to reduced Vgs and corresponding Rs_on of inverter output.

For a current sourced phase detect driver output there is a controlled current source. Problem is there is usually always a dead spot in phase response at phase lock. A small amount of bleeder current (a resistor) is usually done to keep lock state out of dead zone.