CPU Phases, PWM Controller, Phase Doublers and Gate Drivers

[Damian]

Hello, I want to understand VRM and power phases bit more.

What is the difference between a phase doubler and a gate driver?

I've seen some tables that say the following:
PWM Controller: Intersil ISL69147 (7phases)
PWM Mode: 6+1
Phase Doubler: Intersil ISL6617A
Gate Driver: *Intergrated DR in Power Stage: 6+6 CPU, 1+1 SoC

Total: 14 Phases

(Asrock X570 Phantom Gaming X)

Then there is another example

PWM Controller: uPI Semi uP9505P (6phases)
PWM Mode: 4+2
Phase Doubler: NONE
Gate Driver: uPI Semi uP1962s: 4x2 CPU, 2 SoC
Total: 10 Phases

(Asrock X570 Pro4)

Are the Gate Drivers only doubling the CPU chokes and PWM doublers double also the SoC chokes?

[_I_]

lots of info here

https://www.overclock.net/forum/10-amd-cpus/943109-about-vrms-mosfets-motherboard-safety-125w-tdp-processors.html

[Damian]

Originally posted by _I_:

lots of info here

https://www.overclock.net/forum/10-amd-cpus/943109-about-vrms-mosfets-motherboard-safety-125w-tdp-processors.html

It doesn't say anything about the difference between doublers and gates.

[_I_]

depend on how its configured
if the controller is 4+1, they can double up the vrms/chokes to make it look or deliver power of 8+2

or setup a 8+2 with fewer components to 6+1

some of the older msi boards would run a 4+1 setup on 1 to 4 phases depending on how much power the cpu needs at the time (since mosfets are more efficient at higher temps)

[Damian]

Originally posted by _I_:

depend on how its configured
if the controller is 4+1, they can double up the vrms/chokes to make it look or deliver power of 8+2

or setup a 8+2 with fewer components to 6+1

some of the older msi boards would run a 4+1 setup on 1 to 4 phases depending on how much power the cpu needs at the time (since mosfets are more efficient at higher temps)

I see that you're talking about something that I didn't ask for. I was asking about GATE DRIVERS.
Not PWM CONTROLLERS, not MOSFETS (neither Hi nor Low), not CHOKES

GATE DRIVERS

[Washell]

Originally posted by Amega:

I see that you're talking about something that I didn't ask for. I was asking about GATE DRIVERS.
Not PWM CONTROLLERS, not MOSFETS (neither Hi nor Low), not CHOKES

GATE DRIVERS

Yeah, maybe forums aren't for you. Try google. First hit: https://en.wikipedia.org/wiki/Gate_driver