Re: Miele cat and dog hs05 vacuum power supply
Thankyou so much for your feedback. Much appreciated.
The zener is a standard 5.6V i think as i measure just over 5v when running
This is the supply to the micro.
The motor has two brushes only the only two little tabs are for plugging the capacitor module into which is a supression cap. Goes between MT1 and neutral effectively. The motor is a regular universal motor voltage into one winding then to commutator . Out of commutator to other brush then through winding to neutral. Commutator and brushes...
cathoderay
Member
Last Activity: 08-06-2023, 09:20 AM
Joined: 05-04-2022
Location: kemsley sittingbourne
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Re: Miele cat and dog hs05 vacuum power supply
This is a capacitive DC supply with non galvanic isolation.
Note it is a negative version which sits below the max ac of the mains.
It is referenced to MT1 and hence can use it to drive the gate into conduction.
[url]https://cdn.badcaps-static.com/pdfs/8c7c1c86fedff24ef9b5b35df14516be.pdf[/url]
This is the closest i can find attached
Re: Miele cat and dog hs05 vacuum po...nic isolation....
Last edited by cathoderay; 05-12-2022, 01:51 PM.Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
Thank you for your hypothesis.
Couple of notes . The thermostatic switch is in the path to the Triac MT1 . It should always be closed unless the outside temp of the device is higher than 85 degrees. Its a safety switch. Gate current is largely dependent on R3 which is being drained by the micro pins or switched on. Current is coming out of the gate in a conventional sense and therefore swiching in quadrants 1 and 3 i believe .
There will be a drop across the triac when conducting but the main current path for...Last edited by cathoderay; 05-12-2022, 11:40 AM.Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
Thank you for your comments
R1 is not the current feed as it would be the 75 ohm R3 pulled low by the micro by three pins. The micro is unable to sink more than 20mA with one pin.3 gives 60mA which is fine.Not sure why you would want to monitor what you are driving on another 3 pins but maybe is trying to use the back emf when its off to calculate current point for switch on to guarantee latching whe ncurrent is flowing in triac. i dont know i'm guessing need someone to comment who wrote the code. Thing is i cant...Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
Thank you as the main issue was the triac board and the little cap that lives in the motor itself. The suppression cap in that board had unsoldered itself and the thermostatic switch had gone open circuit on the triac board.On the main controller board R1 had snapped in half.
Thank you for your comments/ The micro is fed with plus 5V not minus as the supply for the micro is negative to the AC input and below it..... referenced to MT1. Being negative to the AC input means the triac fires on quadrant 1 and 3 with...Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
i realised i made a mistake with the schematic but i cant delete the old one so here is the new one with an explaining video
The two 10k's on pin 8 go to the triac gate connection and the gate is fed by three pins to get enough sink current
Here is the video link
[url]https://youtu.be/Vd6U4mv8Rhw[/url]Re: Miele cat and dog hs05 vacuum po...deo<br /> The...Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
Thought i would attach a circuit diagram as traced so far.
R1 is a mystery ...Does this hold the gate at 5v normally and the micro pulls it low during the zero cross or some clever phase adjustment.
Anyone got any ideas?
I'll hang a scope on it and see if i get any clues with voltage and current waveforms....Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
Here is a spin up video
[url]https://youtu.be/1EUduwC8gzo[/url]Re: Miele cat and dog hs05 vacuum po...duwC8gzo[/url]Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
Glad to hear it but its a disclaimer on my part. Dont want to be responsible for anyones demise especially Henry Kissinger. Was his Miele faulty as well?
Keep one hand behind your back and hold tight....Leave a comment:
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Re: Miele cat and dog hs05 vacuum power supply
. This is an odd ball resistor that i dont know what it does.
The triac gate is fed by a 75 ohm resistor from pin 13 with a voltage divider of two 10k's that goes to pin 8. Hanging off this is this 390 ohm res which appears connected to the incoming mains and the gate. What is going on here does anyone know? I thought it was the zero cross. There is also a 510K and a cap to pin 9 but the 510k goes to neutral.....is this teh zero cross cant see how....Last edited by cathoderay; 05-06-2022, 07:36 AM.Leave a comment:
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Miele cat and dog hs05 vacuum power supply
Bear with me as this is getting interesting.
Not a lot as the saying goes but it may help someone to decide on throwing it in the landfill or rescuing it.
Symptom no go.
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WARNING THIS STUFF CAN BE FATAL IF WORKED ON LIVE. PLEASE DO NOT WORK ON THIS LIVE UNLESS YOU KNOW WHAT YOU ARE DOING
YOU NEED A GOOD VARIAC AND AN ISOLATING TRANSFORMER AND SKILLS. IF YOU DO NOT HAVE DONT TOUCH.
A LOT OF THIS CAN BE FAULT TRACED USING CONTINUITY METER ONLY.USE A 12V CAR BATTERY FOR THE MOTOR TEST WITH AN IN LINE FUSE. 10A.
I'LL RUN THROUGH THE CONTROL BOARD TEST... -
Re: New Members - please post your introductions here
Hello all. i have been involved in electronics since the birth of the 8080 and Z80 when assembler was the way forward. Since then I have been up to my neck in everything thats broken. 15 Years in broadcasting travelling the world rigging up transmitters in East Africa to running production facilities and post production editing. Now i like delving into the why's a little more and building my own circuits/etching my own pcb's and any project thats interesting in the land of IOT including Dali and C and C++ programming. Web servers...Leave a comment:
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