| 8 Jun 2022 |
 kelu | Noted - makes sense as I had deprecated the modules and not been updating them. | 15:08:49 |
| kelu | Had you done a redesign of the PCB or just swapping the components? | 15:10:09 |
 ahmadhafez676 | No one of this reason, actually i test the pulser alone with no signal only 5 volt | 15:11:03 |
| ahmadhafez676 | Just swap it , it the same in footprint too | 15:11:27 |
| kelu | You may want to check the state of the inputs before (InA and InB) | 15:15:09 |
| kelu | There are some differences in the design (inline C is different for TC2320 and TC6320, attached) | 15:15:31 |
| kelu | Is the component still heating even without HV applied ? | 15:16:23 |
| ahmadhafez676 | No it is only when i short ground to -72 , -48 , -24 | 15:22:51 |
| kelu | Ok | 15:25:23 |
| kelu | Have you checked what is the resistance between GND and the pulser output at the pulser? | 15:26:11 |
| kelu | And that would be the case if the InA and InB are floating in opposite directions | 15:26:45 |
| kelu | if you put both InA and InB to ground, do this heat as well? | 15:27:01 |
| kelu | Track if there is a short then and where this short comes from | 15:27:57 |
| ahmadhafez676 | The heat matter happen without connect any of INA and INB to a logic control (raspberry pi ) | 15:37:47 |
| kelu | Yes that's my point | 15:38:03 |
| ahmadhafez676 | I am sure that no short on pcb | 15:38:20 |
| kelu | they are floating if not connected to a logic entry. Can you say if they are low or high without connecting them to something? | 15:38:29 |
| kelu | (a design oversight from my end, I should have pulled them high or low by default during the design) | 15:38:55 |
| kelu | Connect both INA and INB to GND - and see if the heating still occurs | 15:39:29 |
| ahmadhafez676 | Hmmm ok | 15:39:41 |
| ahmadhafez676 | I will | 15:39:46 |
| kelu | It's really a short so my guess is what I've told you 😃 | 15:40:14 |
| ahmadhafez676 | Thanks man 😊 , i will give you a feedback | 15:40:30 |
| kelu | Everything happens for a reason so need to find the root cause 😃 Up to you to explore! | 15:40:40 |
| kelu | No worries Hafez | 15:40:43 |
| ahmadhafez676 | No at all , all thing will be ok i hope | 15:42:23 |
| 9 Jun 2022 |
| ahmadhafez676 | Good news , the heat matter stopped only when i connect INA and INB to 5v , but when connect it to GND it over heat | 15:11:14 |
| ahmadhafez676 | Is it right if i send pulses to pulser when i connect INA and INB to 5v ? | 15:12:07 |
| ahmadhafez676 | Bad try i think | 15:12:43 |
| 10 Jun 2022 |
| kelu | Have you checked out how the pulser works on the datasheet ? | 06:21:03 |
