Search found 4 matches

by Potemkin
Sun Jan 12, 2025 11:38 am
Forum: Computer hardware
Topic: cable drivers
Replies: 1
Views: 3680

Re: cable drivers

you need 6 drives each 8-bit wide. Try the ULN2003 or use 7405 (6 drivers), so you need 8 pcs of 7405.
by Potemkin
Sat Jan 20, 2024 10:19 pm
Forum: Computer Asylum
Topic: HP9815A calculator
Replies: 1
Views: 5576

HP9815A calculator

Hi, I have HP9815A calculator. Now it's dead. I think the power supply is damaged. Where to get schematics?
by Potemkin
Thu Aug 10, 2023 9:22 pm
Forum: Motors
Topic: how to control the speed of a BLDC motor
Replies: 5
Views: 23198

Re: how to control the speed of a BLDC motor

I have Maxon EC motor Type 136206. That's brushless 150 watt, 48V, rpm 8960 with a tacho.
by Potemkin
Wed Jul 05, 2023 6:54 am
Forum: Motors
Topic: how to control the speed of a BLDC motor
Replies: 5
Views: 23198

how to control the speed of a BLDC motor

I'm looking at how to control the speed of a BLDC motor between zero and 10,000 rpm