#smps — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #smps, aggregated by home.social.
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More #electronics questions.
The MCP1623 boost converter.
They recommend a 4.7µH inductor, and they support boosting from 3.4V to 5V. At low currents, the efficiency can drop to 0.6.
TI Application Note SLVA372D gives inductor ripple current as T*Vin*D/L. That works out to
> 3.4V * 0.6 / (270kHz * 4.7µH)
680/423, approx. 1.607565 ampere (current)which is WAY above the converter's switching current.
And yet, it works.
What is wrong with my calculations?
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More #electronics questions.
The MCP1623 boost converter.
They recommend a 4.7µH inductor, and they support boosting from 3.4V to 5V. At low currents, the efficiency can drop to 0.6.
TI Application Note SLVA372D gives inductor ripple current as T*Vin*D/L. That works out to
> 3.4V * 0.6 / (270kHz * 4.7µH)
680/423, approx. 1.607565 ampere (current)which is WAY above the converter's switching current.
And yet, it works.
What is wrong with my calculations?
-
More #electronics questions.
The MCP1623 boost converter.
They recommend a 4.7µH inductor, and they support boosting from 3.4V to 5V. At low currents, the efficiency can drop to 0.6.
TI Application Note SLVA372D gives inductor ripple current as T*Vin*D/L. That works out to
> 3.4V * 0.6 / (270kHz * 4.7µH)
680/423, approx. 1.607565 ampere (current)which is WAY above the converter's switching current.
And yet, it works.
What is wrong with my calculations?
-
More #electronics questions.
The MCP1623 boost converter.
They recommend a 4.7µH inductor, and they support boosting from 3.4V to 5V. At low currents, the efficiency can drop to 0.6.
TI Application Note SLVA372D gives inductor ripple current as T*Vin*D/L. That works out to
> 3.4V * 0.6 / (270kHz * 4.7µH)
680/423, approx. 1.607565 ampere (current)which is WAY above the converter's switching current.
And yet, it works.
What is wrong with my calculations?
-
More #electronics questions.
The MCP1623 boost converter.
They recommend a 4.7µH inductor, and they support boosting from 3.4V to 5V. At low currents, the efficiency can drop to 0.6.
TI Application Note SLVA372D gives inductor ripple current as T*Vin*D/L. That works out to
> 3.4V * 0.6 / (270kHz * 4.7µH)
680/423, approx. 1.607565 ampere (current)which is WAY above the converter's switching current.
And yet, it works.
What is wrong with my calculations?
-
Continuing on the "Hangell" switching bench power supply I received a few weeks ago...
I mentioned there was some switching noise visible on the output - not a lot, but more than I'd ideally want. Today I built a filter for its outputs, with a large-ish common-mode inductor/choke rated 10 mH (accurate enough, though my meter says it drops to about half that at 100 kHz) sandwiched between a couple of 1 μF class X2 safety capacitors.
It seems to have done the trick. Under a moderate load, all the random hash has disappeared, leaving only some spikes at the switching frequency, and those are much smaller than they were before. The RMS noise value is now (barely) under 1 mV, if you believe my cheapish oscilloscope.
Like a lot of switching supplies, there's a lot of open space in the chassis, so I had room to squeeze the filter inside. I'm pretty happy with it!
Now to see if this no-brand thing works for any length of time.
#YumCha #SMPS #PowerSupply #SwitchModeSupply #Hangell #bench #workbench #noise #filter #electronics #hobby
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Continuing on the "Hangell" switching bench power supply I received a few weeks ago...
I mentioned there was some switching noise visible on the output - not a lot, but more than I'd ideally want. Today I built a filter for its outputs, with a large-ish common-mode inductor/choke rated 10 mH (accurate enough, though my meter says it drops to about half that at 100 kHz) sandwiched between a couple of 1 μF class X2 safety capacitors.
It seems to have done the trick. Under a moderate load, all the random hash has disappeared, leaving only some spikes at the switching frequency, and those are much smaller than they were before. The RMS noise value is now (barely) under 1 mV, if you believe my cheapish oscilloscope.
Like a lot of switching supplies, there's a lot of open space in the chassis, so I had room to squeeze the filter inside. I'm pretty happy with it!
Now to see if this no-brand thing works for any length of time.
#YumCha #SMPS #PowerSupply #SwitchModeSupply #Hangell #bench #workbench #noise #filter #electronics #hobby
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Continuing on the "Hangell" switching bench power supply I received a few weeks ago...
I mentioned there was some switching noise visible on the output - not a lot, but more than I'd ideally want. Today I built a filter for its outputs, with a large-ish common-mode inductor/choke rated 10 mH (accurate enough, though my meter says it drops to about half that at 100 kHz) sandwiched between a couple of 1 μF class X2 safety capacitors.
It seems to have done the trick. Under a moderate load, all the random hash has disappeared, leaving only some spikes at the switching frequency, and those are much smaller than they were before. The RMS noise value is now (barely) under 1 mV, if you believe my cheapish oscilloscope.
Like a lot of switching supplies, there's a lot of open space in the chassis, so I had room to squeeze the filter inside. I'm pretty happy with it!
Now to see if this no-brand thing works for any length of time.
#YumCha #SMPS #PowerSupply #SwitchModeSupply #Hangell #bench #workbench #noise #filter #electronics #hobby
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Continuing on the "Hangell" switching bench power supply I received a few weeks ago...
I mentioned there was some switching noise visible on the output - not a lot, but more than I'd ideally want. Today I built a filter for its outputs, with a large-ish common-mode inductor/choke rated 10 mH (accurate enough, though my meter says it drops to about half that at 100 kHz) sandwiched between a couple of 1 μF class X2 safety capacitors.
It seems to have done the trick. Under a moderate load, all the random hash has disappeared, leaving only some spikes at the switching frequency, and those are much smaller than they were before. The RMS noise value is now (barely) under 1 mV, if you believe my cheapish oscilloscope.
Like a lot of switching supplies, there's a lot of open space in the chassis, so I had room to squeeze the filter inside. I'm pretty happy with it!
Now to see if this no-brand thing works for any length of time.
#YumCha #SMPS #PowerSupply #SwitchModeSupply #Hangell #bench #workbench #noise #filter #electronics #hobby
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Continuing on the "Hangell" switching bench power supply I received a few weeks ago...
I mentioned there was some switching noise visible on the output - not a lot, but more than I'd ideally want. Today I built a filter for its outputs, with a large-ish common-mode inductor/choke rated 10 mH (accurate enough, though my meter says it drops to about half that at 100 kHz) sandwiched between a couple of 1 μF class X2 safety capacitors.
It seems to have done the trick. Under a moderate load, all the random hash has disappeared, leaving only some spikes at the switching frequency, and those are much smaller than they were before. The RMS noise value is now (barely) under 1 mV, if you believe my cheapish oscilloscope.
Like a lot of switching supplies, there's a lot of open space in the chassis, so I had room to squeeze the filter inside. I'm pretty happy with it!
Now to see if this no-brand thing works for any length of time.
#YumCha #SMPS #PowerSupply #SwitchModeSupply #Hangell #bench #workbench #noise #filter #electronics #hobby
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It's time to change some #smps On Feb 11 Wednesday 2026
#retiredstudent #soldier #soldier1375 #lonesoldier #freegames #frankquotes #shorts #reels #tiktok #game #gaming #gameplay #console #consolegaming #ps #playstation #xbox #nintendo #nes #gameboy #retro #pc #pcgamer
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It's time to change some #smps On Feb 11 Wednesday 2026
#retiredstudent #soldier #soldier1375 #lonesoldier #freegames #frankquotes #shorts #reels #tiktok #game #gaming #gameplay #console #consolegaming #ps #playstation #xbox #nintendo #nes #gameboy #retro #pc #pcgamer
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It's time to change some #smps On Feb 11 Wednesday 2026
#retiredstudent #soldier #soldier1375 #lonesoldier #freegames #frankquotes #shorts #reels #tiktok #game #gaming #gameplay #console #consolegaming #ps #playstation #xbox #nintendo #nes #gameboy #retro #pc #pcgamer
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It's time to change some #smps On Feb 11 Wednesday 2026
#retiredstudent #soldier #soldier1375 #lonesoldier #freegames #frankquotes #shorts #reels #tiktok #game #gaming #gameplay #console #consolegaming #ps #playstation #xbox #nintendo #nes #gameboy #retro #pc #pcgamer
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It's time to change some #smps On Feb 11 Wednesday 2026
#retiredstudent #soldier #soldier1375 #lonesoldier #freegames #frankquotes #shorts #reels #tiktok #game #gaming #gameplay #console #consolegaming #ps #playstation #xbox #nintendo #nes #gameboy #retro #pc #pcgamer
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How to calculate the voltage undershoot (ΔVo) of an SMPS during a load step (ΔIo)?
ΔVo = ΔIo/ (2π fc Co)
where
fc = Cross-over frequency of the control loop
Co = Output capacitance -
How to calculate the voltage undershoot (ΔVo) of an SMPS during a load step (ΔIo)?
ΔVo = ΔIo/ (2π fc Co)
where
fc = Cross-over frequency of the control loop
Co = Output capacitance -
How to calculate the voltage undershoot (ΔVo) of an SMPS during a load step (ΔIo)?
ΔVo = ΔIo/ (2π fc Co)
where
fc = Cross-over frequency of the control loop
Co = Output capacitance -
How to calculate the voltage undershoot (ΔVo) of an SMPS during a load step (ΔIo)?
ΔVo = ΔIo/ (2π fc Co)
where
fc = Cross-over frequency of the control loop
Co = Output capacitance -
How to calculate the voltage undershoot (ΔVo) of an SMPS during a load step (ΔIo)?
ΔVo = ΔIo/ (2π fc Co)
where
fc = Cross-over frequency of the control loop
Co = Output capacitance -
Schaltnetzteiltopologien, switched mode power supplies #smps
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Schaltnetzteiltopologien, switched mode power supplies #smps
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A #computer has two main parts: #Hardware and #Software. Hardware refers to the physical components, and Software is the set of instructions and programs that tell the hardware what to do. https://windows101tricks.com/parts-of-computer/
#CPU #Motherboard #RAM #HDD #SSD #SMPS #Graphics #Tech #technology #PC #Laptop -
A #computer has two main parts: #Hardware and #Software. Hardware refers to the physical components, and Software is the set of instructions and programs that tell the hardware what to do. https://windows101tricks.com/parts-of-computer/
#CPU #Motherboard #RAM #HDD #SSD #SMPS #Graphics #Tech #technology #PC #Laptop -
A #computer has two main parts: #Hardware and #Software. Hardware refers to the physical components, and Software is the set of instructions and programs that tell the hardware what to do. https://windows101tricks.com/parts-of-computer/
#CPU #Motherboard #RAM #HDD #SSD #SMPS #Graphics #Tech #technology #PC #Laptop -
A #computer has two main parts: #Hardware and #Software. Hardware refers to the physical components, and Software is the set of instructions and programs that tell the hardware what to do. https://windows101tricks.com/parts-of-computer/
#CPU #Motherboard #RAM #HDD #SSD #SMPS #Graphics #Tech #technology #PC #Laptop -
A #computer has two main parts: #Hardware and #Software. Hardware refers to the physical components, and Software is the set of instructions and programs that tell the hardware what to do. https://windows101tricks.com/parts-of-computer/
#CPU #Motherboard #RAM #HDD #SSD #SMPS #Graphics #Tech #technology #PC #Laptop -
Проектирование импульсных источников питания: ключевые параметры и распространенные ошибки
В этой статье мы рассмотрим проектирование импульсных источников питания: ключевые параметры и распространенные ошибки. Импульсные источники питания (SMPS) стали стандартом в современной электронике благодаря высокому КПД, компактности и гибкости применения. Однако их проектирование связано с рядом сложностей: от правильного выбора топологии и компонентов до грамотной разводки печатной платы и обеспечения электромагнитной совместимости.
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Проектирование импульсных источников питания: ключевые параметры и распространенные ошибки
В этой статье мы рассмотрим проектирование импульсных источников питания: ключевые параметры и распространенные ошибки. Импульсные источники питания (SMPS) стали стандартом в современной электронике благодаря высокому КПД, компактности и гибкости применения. Однако их проектирование связано с рядом сложностей: от правильного выбора топологии и компонентов до грамотной разводки печатной платы и обеспечения электромагнитной совместимости.
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Проектирование импульсных источников питания: ключевые параметры и распространенные ошибки
В этой статье мы рассмотрим проектирование импульсных источников питания: ключевые параметры и распространенные ошибки. Импульсные источники питания (SMPS) стали стандартом в современной электронике благодаря высокому КПД, компактности и гибкости применения. Однако их проектирование связано с рядом сложностей: от правильного выбора топологии и компонентов до грамотной разводки печатной платы и обеспечения электромагнитной совместимости.
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Проектирование импульсных источников питания: ключевые параметры и распространенные ошибки
В этой статье мы рассмотрим проектирование импульсных источников питания: ключевые параметры и распространенные ошибки. Импульсные источники питания (SMPS) стали стандартом в современной электронике благодаря высокому КПД, компактности и гибкости применения. Однако их проектирование связано с рядом сложностей: от правильного выбора топологии и компонентов до грамотной разводки печатной платы и обеспечения электромагнитной совместимости.
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Amiga PSU Fixes: Two Dead Bricks Restored with Smart Troubleshooting
#Amiga #RetroRepair #PSU #Commodore #Electronics #A600 #GadgetUK #SMPS
https://theoasisbbs.com/amiga-psu-fixes-two-dead-bricks-restored-with-smart-troubleshooting/?feed_id=5190&_unique_id=68bae2a1540d6 -
Amiga PSU Fixes: Two Dead Bricks Restored with Smart Troubleshooting
#Amiga #RetroRepair #PSU #Commodore #Electronics #A600 #GadgetUK #SMPS
https://theoasisbbs.com/amiga-psu-fixes-two-dead-bricks-restored-with-smart-troubleshooting/?feed_id=5190&_unique_id=68bae2a1540d6 -
Amiga PSU Fixes: Two Dead Bricks Restored with Smart Troubleshooting
#Amiga #RetroRepair #PSU #Commodore #Electronics #A600 #GadgetUK #SMPS
https://theoasisbbs.com/amiga-psu-fixes-two-dead-bricks-restored-with-smart-troubleshooting/?feed_id=5190&_unique_id=68bae2a1540d6 -
Amiga PSU Fixes: Two Dead Bricks Restored with Smart Troubleshooting
#Amiga #RetroRepair #PSU #Commodore #Electronics #A600 #GadgetUK #SMPS
https://theoasisbbs.com/amiga-psu-fixes-two-dead-bricks-restored-with-smart-troubleshooting/?feed_id=5190&_unique_id=68bae2a1540d6 -
Amiga PSU Fixes: Two Dead Bricks Restored with Smart Troubleshooting
#Amiga #RetroRepair #PSU #Commodore #Electronics #A600 #GadgetUK #SMPS
https://theoasisbbs.com/amiga-psu-fixes-two-dead-bricks-restored-with-smart-troubleshooting/?feed_id=5190&_unique_id=68bae2a1540d6 -
Unser Plakat zu Software Management Plans #SMPs hängt nun auch auf der #Cordi2025 #GoetheTravels #Forschungssoftware
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Unser Plakat zu Software Management Plans #SMPs hängt nun auch auf der #Cordi2025 #GoetheTravels #Forschungssoftware
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Unser Plakat zu Software Management Plans #SMPs hängt nun auch auf der #Cordi2025 #GoetheTravels #Forschungssoftware
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Unser Plakat zu Software Management Plans #SMPs hängt nun auch auf der #Cordi2025 #GoetheTravels #Forschungssoftware
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Unser Plakat zu Software Management Plans #SMPs hängt nun auch auf der #Cordi2025 #GoetheTravels #Forschungssoftware
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I just found my bi-polar SMPS power supply that I bought for an audio project. A friend also designed a filter board to remove the high-frequency noise generated because it is a switching supply.
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I just found my bi-polar SMPS power supply that I bought for an audio project. A friend also designed a filter board to remove the high-frequency noise generated because it is a switching supply.
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I just found my bi-polar SMPS power supply that I bought for an audio project. A friend also designed a filter board to remove the high-frequency noise generated because it is a switching supply.
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I just found my bi-polar SMPS power supply that I bought for an audio project. A friend also designed a filter board to remove the high-frequency noise generated because it is a switching supply.
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I just found my bi-polar SMPS power supply that I bought for an audio project. A friend also designed a filter board to remove the high-frequency noise generated because it is a switching supply.