Author Topic: Minimalist Thermal Controlled Power Gating 1-2 Piece  (Read 279 times)

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Offline vectoronicTopic starter

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Minimalist Thermal Controlled Power Gating 1-2 Piece
« on: March 16, 2024, 08:15:36 pm »
     Is there a Common SMD or thin strip type of component that is just Mosfet/Thermisistor Fuse that operates in line with a circuit at near 0 ohm and chokes voltage the hotter it gets in a much broader range then regular thermal fuses.
     
     Reliable enough for medical devices even where the parts being regulated don't need a thermostat or the thermal controlled component measured to operate. so 24V supplied open 0 ohm then 100f on component in line with element exponential Ohm increase scales to choke to near inf-OHM at 130f.
The part must be designed already just has been difficult to find a name or thermistor with that low temp and low voltage spec and a wide operation range in the multi deca scale.
Mosfet and fuses are known well but looking for a single self contained component 2 points of connect and "it works".
so thermistor fuse but functions with very wide precision Gate/choke. If this isn't a thing i understand it could be designed in a small package as a multi in one component in shell easier then a scientific designed layered one.

I'm assuming it would consist of a Alloy Junction or specialty mosfet stacked on a regular Thermal fusing component ideally PTC like in a 5mm-60mm package.
« Last Edit: March 16, 2024, 08:26:52 pm by vectoronic »
 

Offline Someone

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Re: Minimalist Thermal Controlled Power Gating 1-2 Piece
« Reply #1 on: March 16, 2024, 10:23:04 pm »
2 terminal DC device... so where does the mosfet get a drive voltage from?
 
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Offline vectoronicTopic starter

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Re: Minimalist Thermal Controlled Power Gating 1-2 Piece
« Reply #2 on: March 18, 2024, 03:44:00 am »
as a packaged IC device would be Within the package sourced from input so positive would be powering a thermal package controlling the mosfet drive on the same chip or lithographed IC passive power consumption through driver circuit in parallel to mosfet and mosfet clamping 0hm-infohm.

But this in my mind more of a bi-layer polymer based specialized Semi conductor sandwich Material wizard design. As simple as a film resistor on outside but yes functions like a 2 pole mosfet controlled by magic (resistance curve based on temp whether by liquid metal, materials, capacitive gap ect etc).
 

Online PCB.Wiz

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Re: Minimalist Thermal Controlled Power Gating 1-2 Piece
« Reply #3 on: March 18, 2024, 04:27:42 am »
But this in my mind more of a bi-layer polymer based specialized Semi conductor sandwich Material wizard design. As simple as a film resistor on outside but yes functions like a 2 pole mosfet controlled by magic (resistance curve based on temp whether by liquid metal, materials, capacitive gap ect etc).
I've seen wax+spring based fuses that work like that "controlled by magic - resistance curve based on temp, whether by liquid metal, materials,"
- but of course, they are one-way actions. 8)
 


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