On Wednesday, February 23, 2022 at 3:13:09 PM UTC-5, John Larkin wrote:> wrote: > >On Tuesday, February 22, 2022 at 3:21:04 PM UTC-5, Don Y wrote: > >> On 2/21/2022 6:31 PM, s7382 wrote: > >> > https://i.stack.imgur.com/YaRcd.png > >> > How it's wired. With my wiring, the USB wires are heating up to around 200-300F. > >> > Am I using the right voltage? > >> A VOM seems like the easiest way to VERIFY that. > >> > >> You may find the PSU requires a heavier load on the supply than you are > >> providing. > >> > >> Putting an ammeter in series with the load to give you a rough idea of > >> the amount of current flowing would be a good idea. Likewise, the voltage > >> DROP across the cable's length. > >> > Is the iPad demanding too much power? The PSU worked fine after the incident. > >> iPad get warm (battery)? > >> > >> If you disconnect iPad from your "adapter", there should be NO current flowing > >> and no "heat", right? (i.e., wiring error) > >iPad battery is OK, it's the USB wire that gets hot, > The battery may not be OK for long! > > Why not use the right iPad charger? > -- > > If a man will begin with certainties, he shall end with doubts, > but if he will be content to begin with doubts he shall end in certainties. > Francis Bacon@Don Y No, it's on the 5V rail.
Wires overheated while charging iPad with ATX PSU
Started by ●February 21, 2022
Reply by ●February 25, 20222022-02-25
Reply by ●February 25, 20222022-02-25
On Thursday, February 24, 2022 at 11:13:44 PM UTC-5, s7382 wrote:> On Wednesday, February 23, 2022 at 3:13:09 PM UTC-5, John Larkin wrote: > > wrote: > > >On Tuesday, February 22, 2022 at 3:21:04 PM UTC-5, Don Y wrote: > > >> On 2/21/2022 6:31 PM, s7382 wrote: > > >> > https://i.stack.imgur.com/YaRcd.png > > >> > How it's wired. With my wiring, the USB wires are heating up to around 200-300F. > > >> > Am I using the right voltage? > > >> A VOM seems like the easiest way to VERIFY that. > > >> > > >> You may find the PSU requires a heavier load on the supply than you are > > >> providing. > > >> > > >> Putting an ammeter in series with the load to give you a rough idea of > > >> the amount of current flowing would be a good idea. Likewise, the voltage > > >> DROP across the cable's length. > > >> > Is the iPad demanding too much power? The PSU worked fine after the incident. > > >> iPad get warm (battery)? > > >> > > >> If you disconnect iPad from your "adapter", there should be NO current flowing > > >> and no "heat", right? (i.e., wiring error) > > >iPad battery is OK, it's the USB wire that gets hot, > > The battery may not be OK for long! > > > > Why not use the right iPad charger? > > -- > > > > If a man will begin with certainties, he shall end with doubts, > > but if he will be content to begin with doubts he shall end in certainties. > > Francis Bacon > @Don Y No, it's on the 5V rail.So you have wires from the power supply to a USB socket, then are using a USB cable from the socket to the iPad? Is this USB cable a quality cable rated for the power the iPad will draw? Lots of USB cables use very thin wires. You need one that is rated for the current the iPad will draw. Do you know what maximum current the iPad draws? -- Rick C. -- Get 1,000 miles of free Supercharging -- Tesla referral code - https://ts.la/richard11209
Reply by ●March 3, 20222022-03-03
On Friday, February 25, 2022 at 9:53:03 AM UTC-5, gnuarm.del...@gmail.com wrote:> On Thursday, February 24, 2022 at 11:13:44 PM UTC-5, s7382 wrote: > > On Wednesday, February 23, 2022 at 3:13:09 PM UTC-5, John Larkin wrote: > > > wrote: > > > >On Tuesday, February 22, 2022 at 3:21:04 PM UTC-5, Don Y wrote: > > > >> On 2/21/2022 6:31 PM, s7382 wrote: > > > >> > https://i.stack.imgur.com/YaRcd.png > > > >> > How it's wired. With my wiring, the USB wires are heating up to around 200-300F. > > > >> > Am I using the right voltage? > > > >> A VOM seems like the easiest way to VERIFY that. > > > >> > > > >> You may find the PSU requires a heavier load on the supply than you are > > > >> providing. > > > >> > > > >> Putting an ammeter in series with the load to give you a rough idea of > > > >> the amount of current flowing would be a good idea. Likewise, the voltage > > > >> DROP across the cable's length. > > > >> > Is the iPad demanding too much power? The PSU worked fine after the incident. > > > >> iPad get warm (battery)? > > > >> > > > >> If you disconnect iPad from your "adapter", there should be NO current flowing > > > >> and no "heat", right? (i.e., wiring error) > > > >iPad battery is OK, it's the USB wire that gets hot, > > > The battery may not be OK for long! > > > > > > Why not use the right iPad charger? > > > -- > > > > > > If a man will begin with certainties, he shall end with doubts, > > > but if he will be content to begin with doubts he shall end in certainties. > > > Francis Bacon > > @Don Y No, it's on the 5V rail. > So you have wires from the power supply to a USB socket, then are using a USB cable from the socket to the iPad? > > Is this USB cable a quality cable rated for the power the iPad will draw? > > Lots of USB cables use very thin wires. You need one that is rated for the current the iPad will draw. Do you know what maximum current the iPad draws? > > -- > > Rick C. > > -- Get 1,000 miles of free Supercharging > -- Tesla referral code - https://ts.la/richard112092.1A
