Simplistic Mosfet HV Shunt Regs - Page 362

Salas · 15th December 2012, 02:50 PM

Quote:

Originally Posted by merlin el mago

No, later other test with fuses installed and fuses broken also.

Looks like shorting somehow. Was it still on doubler or normal rectification?

merlin el mago · 15th December 2012, 03:05 PM

Goes up till 137Vout when suddenly 1st fuse broken.

merlin el mago · 15th December 2012, 03:06 PM

Quote:

Originally Posted by Salas

Looks like shorting somehow. Was it still on doubler or normal rectification?

Tx 240VAC not doubler, normal rectification.

Salas · 15th December 2012, 03:29 PM

Are there photos and a schematic of the total configuration in blocks? From mains to load?

merlin el mago · 15th December 2012, 04:03 PM

All zeners are gone, replaced them and tested again the reg., now only crossed D2 so I will replace it and also replace Q2 DN2450.

merlin el mago · 15th December 2012, 05:00 PM

Crossed again D2, now I will replace all CCS.

Stixx · 15th December 2012, 05:13 PM

Something must be fundamentally wrong when resistors catch fire, parts burn out repeatedly and literally explode...
Being a beta tester of the SSHV I must say that building was very straightforward and easy, so I really wonder....

merlin el mago · 15th December 2012, 05:45 PM

Fixed the issue was where I suspected at the CCS the track between the two DN2450 was breaked, now I adjust the current to 30mA but the maximum Vout is 151,3VDC, the dummy load is 15K my Vout target is 280VDC Vin is 312,8VDC

merlin el mago · 15th December 2012, 05:46 PM

Red LED lits.

merlin el mago · 15th December 2012, 06:17 PM

MJE350 Q4 Emiter Collector soldered togheter

Now works like a charm

:super man:

:e guitar:

:ch eers:

15th December 2012, 06:17 PM	#3620
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	MJE350 Q4 Emiter Collector soldered togheter Now works like a charm:super man::e guitar::ch eers:

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15th December 2012, 03:05 PM	#3612
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	Goes up till 137Vout when suddenly 1st fuse broken.

15th December 2012, 03:29 PM	#3614
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Are there photos and a schematic of the total configuration in blocks? From mains to load?

15th December 2012, 04:03 PM	#3615
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	All zeners are gone, replaced them and tested again the reg., now only crossed D2 so I will replace it and also replace Q2 DN2450.

15th December 2012, 05:00 PM	#3616
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	Crossed again D2, now I will replace all CCS.

15th December 2012, 05:13 PM	#3617
Stixx diyAudio Member Join Date: Sep 2003 Location: Southern Germany	Something must be fundamentally wrong when resistors catch fire, parts burn out repeatedly and literally explode... Being a beta tester of the SSHV I must say that building was very straightforward and easy, so I really wonder....

15th December 2012, 05:45 PM	#3618
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	Fixed the issue was where I suspected at the CCS the track between the two DN2450 was breaked, now I adjust the current to 30mA but the maximum Vout is 151,3VDC, the dummy load is 15K my Vout target is 280VDC Vin is 312,8VDC

15th December 2012, 05:46 PM	#3619
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia new Europe state	Red LED lits.