The off load voltages are misleading. The PSU is not regulated, so the voltages will be higher than you expect when not supplying the full rated current.
Mark
Search found 592 matches
- Wed Feb 14, 2024 11:31 pm
- Forum: Hardware
- Topic: QL PSU Voltages
- Replies: 20
- Views: 729
- Sun Jan 14, 2024 5:16 pm
- Forum: Hardware
- Topic: Switching Regulator?
- Replies: 37
- Views: 2277
- Sun Jan 14, 2024 5:02 pm
- Forum: Hardware
- Topic: Switching Regulator?
- Replies: 37
- Views: 2277
Re: Switching Regulator?
The 'dot' indicates pin 1 which is the input (the nominal 9V from the PSU).
The middle pin (pin 2) is 0V/GND
The remaining pin (pin 3) is the +5V output.
Datasheet here
Mark
The middle pin (pin 2) is 0V/GND
The remaining pin (pin 3) is the +5V output.
Datasheet here
Mark
- Sun Jan 14, 2024 4:55 pm
- Forum: Hardware
- Topic: Switching Regulator?
- Replies: 37
- Views: 2277
Re: Switching Regulator?
Oh, it definitely does matter which way it's connected!
Mark
Mark
- Wed Dec 27, 2023 1:00 pm
- Forum: Hardware
- Topic: PSU for VRetro PSU?
- Replies: 10
- Views: 933
Re: PSU for VRetro PSU?
The maximum current rating can be higher (within reason) but not lower. If buying on a trading site, use a seller from your own country that has a good reputation or buy a known brand that has a good reputation. Stay clear of low quality imports from the far east, as often these completely ignore go...
- Mon Dec 25, 2023 9:41 pm
- Forum: The Off-Topic Section
- Topic: Today I Received...
- Replies: 642
- Views: 288274
Re: Today I Received...
Where's the LIKE button when you need it
Mark
- Mon Dec 25, 2023 12:14 am
- Forum: General QL Chat
- Topic: Happy Christmas Everyone!
- Replies: 12
- Views: 2276
Re: Happy Christmas Everyone!
A very merry Christmas to all members
‘Tis the day to devour a pagan feast. I say to all, enjoy your day!
Mark
‘Tis the day to devour a pagan feast. I say to all, enjoy your day!
Mark
- Tue Dec 19, 2023 6:34 pm
- Forum: Software & Programming
- Topic: The comp.sys.sinclair Crap Games Competition 2024
- Replies: 6
- Views: 980
Re: The comp.sys.sinclair Crap Games Competition 2024
Welcome to the QL universe
Mark
Mark
- Sat Jan 01, 2022 12:48 am
- Forum: General QL Chat
- Topic: Happy New Year
- Replies: 3
- Views: 1901
Re: Happy New Year
Welcome to the year that in future will be known as two thousand and twenty two
Best wishes to all QL fans
Mark
Best wishes to all QL fans
Mark
- Sat Jan 01, 2022 12:13 am
- Forum: The Off-Topic Section
- Topic: Happy QL Year
- Replies: 16
- Views: 6305
Re: Happy QL Year
Welcome to the year that in future will be known as two thousand and twenty two
Best wishes to all QL fans
Mark
Best wishes to all QL fans
Mark