November 04, 2020

MEP EP#249: How Soft Are Your Diodes?

Listen Later

48 minutes

MEP EP#249: How Soft Are Your Diodes?

Parker

Signed up for the EXTRA LIFE charity this year to raise money for the Texas Children's Hospital

This Saturday (Nov 7th) Parker will be broadcasting a 24 hour video game stream

Will be playing the Half-Life 2 video game all the way through

This includes the two episode expansions to the base campaign

Difficulty level will be set to 'Hard' and I will be attempting to unlock all the achievements at the same time.

Donations are tax-deductible and 100% of it goes to the hospital

Learning some javascript to build plugins for the stream

PinoTaur REV3 has gone gold

Added more current sensing

Low Current Allegro ACS70331EESATR-005B3

High Current Allegro ACS711KEXLT-15AB-T

Changed Relay to a socketed relay type

ISO micro relays type

On PCB flyback diodes for coils

MRA4004

Relay is driven by both the MCU and the Fault pin on the high current sensing IC

Walmart fires store robots

Saw improvements in inventory control with the robots, but not enough of an improvement in revenues and other measures.

One premise is that stores will sell more goods if the shelves are stocked and wanted items are made available

Stephen

How soft are your diodes?

Softness factor - a definition of the reverse current characteristic

Ta = time when charge from depletion region is removed

Tb = time when charge from semiconductor region is removed

S-factor = tb/ta

S-factor = unity = soft recovery

S-factor unity = fast or snappy-recovery

General purpose/fast recovery (FRED diodes)

The SSPS?

@zane is going back and listening to episode 1

What was the SSPS?

What were the specifications????

Where did we leave off

...more

View all episodes

View all episodes

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Circuit Break - A MacroFab Podcast

By MacroFab, Inc.

4.8

3737 ratings

November 04, 2020

MEP EP#249: How Soft Are Your Diodes?

Listen Later

48 minutes

MEP EP#249: How Soft Are Your Diodes?

Parker

Signed up for the EXTRA LIFE charity this year to raise money for the Texas Children's Hospital

This Saturday (Nov 7th) Parker will be broadcasting a 24 hour video game stream

Will be playing the Half-Life 2 video game all the way through

This includes the two episode expansions to the base campaign

Difficulty level will be set to 'Hard' and I will be attempting to unlock all the achievements at the same time.

Donations are tax-deductible and 100% of it goes to the hospital

Learning some javascript to build plugins for the stream

PinoTaur REV3 has gone gold

Added more current sensing

Low Current Allegro ACS70331EESATR-005B3

High Current Allegro ACS711KEXLT-15AB-T

Changed Relay to a socketed relay type

ISO micro relays type

On PCB flyback diodes for coils

MRA4004

Relay is driven by both the MCU and the Fault pin on the high current sensing IC

Walmart fires store robots

Saw improvements in inventory control with the robots, but not enough of an improvement in revenues and other measures.

One premise is that stores will sell more goods if the shelves are stocked and wanted items are made available

Stephen

How soft are your diodes?

Softness factor - a definition of the reverse current characteristic

Ta = time when charge from depletion region is removed

Tb = time when charge from semiconductor region is removed

S-factor = tb/ta

S-factor = unity = soft recovery

S-factor unity = fast or snappy-recovery

General purpose/fast recovery (FRED diodes)

The SSPS?

@zane is going back and listening to episode 1

What was the SSPS?

What were the specifications????

Where did we leave off

...more

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