Using the HYPNOTIZE as a general shunt reg PCB

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#186
merlin el mago said:
For minus rail I have to do the same like for plus rail:?

"test resistor + solder G & S of K170 & after change test resistor for necessary value"

Or if I used matched Jfets 7,06-7,12mA it's not necessary to measure the minus rail?
Click to expand...

G & S are already as they should for the minus side, just solder normally in the pad holes. Since your Jfets are very near, you already know the adequate values story from + side, start with a 3k3 directly and see how near you are to -24V and trim. The Leds and current must have a little tolerance naturally.
 
#189
Thank you very much for your interest Salas but now I don't remember where I read it to post the link so please let it go I have all necessary to do mine +-24V 200mA Hypnotize reg.🙂

To supply mine new IVY III (I/V Twisted Pear) the next Hypnotize reg. will be +-15V 200mA & will be compared with:

Erno Borbely series reg. EB-803/244 that I have on hand with an ouput noise over the audio frecuency range is less than 5uV

Placid BP shunt reg. Twisted Pear.
 
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#192
OK then, keep 'em so to tell us how they compare to the ref decoupling lytics in other applications beyond DCB1 when you will be ready and start doing your Leds referenced V1.0 (AKA Hypno reg part) evaluations.
 
#194
merlin el mago said:
To supply mine new IVY III (I/V Twisted Pear) the next Hypnotize reg. will be +-15V 200mA & will be compared with:

Erno Borbely series reg. EB-803/244 that I have on hand with an ouput noise over the audio frecuency range is less than 5uV

Placid BP shunt reg. Twisted Pear.
Click to expand...

Compared Erno Borbely series reg. vs Twisted Pear Placid BP shunt reg. both feeding the IVY III Twisted Pear & there is not colour: Erno beats for a large amount of bass, mids & treble, less noise, more organic, more live, etc no words to describe this amount of difference between the two regs. that's incredible will do a good reg.😱

Next step: Hypnotize shunt reg. vs Erno Borbely series reg. ....
 
#195
CCSed shunt regs have a preset current roof determined by operator decided steady current available, where series regs supply on demand up to their semiconductor's max. I saw that the I/V stage you describe states +/-90mA consumption and +/- 150mA supply spec. Have you provided such setting for the shunt reg you compared? Use 22//22R setting resistors for the Hypno when you will test it for that application and test drops so to be sure you got at least 25-30mA left for the shunt element above the 150mA stated. I.e. you should run it at least +/- 175-180mA. 200mA you mentioned as a target is even better, it will be determined by Vgs and Leds what will be the exact set resistors value to reach that number. Possibly somewhat different for symmetry, but of no real interest if both +/- are near, and above 175-180mA.
 
#196
For Placid BP I followed the setup of TP guys to achieve +-15V rails to supply his IVY III 50-60mA, so I adjusted 1st the output voltage 15V rails & after adjusted the CCS pots (VR1/VR2) until measured voltage across R1 & R2 was ~0.25V ready to supply current of up to 250mA. Fine tuned current sources measured voltage across R13 & R14 with the load (IVY III) powered & adjusted with VR1 & VR2 that the voltage across R13 & R14 was between .05VDC and .06VDC.

Don't worry I will use 22R//22R settings resistors for the Hypno & I wil ask you if I have any doubt to be sure that is all ok before to compare with the Erno Borbely series reg. but believe me the Erno series reg. is very, very good so will be a very interesting comparison & it will let us know how good is the Hypno vs Borbely.

P.S. Placid BP TP FS on Swap Meet.😀
 
#197
Was that 0.25V on 1R? Then it was 250mA per rail indeed.

P.S. Do you keep the regs near load with thick short wires? The Hypno is made for its onboard client which is cm away. It does not sport remote sensing and it is not a V1.2. But it will be interesting indeed. How costly is the EB series?
 
#198
merlin el mago said:
Chance goes I have on hand two Wima MKP10 0,22uF 400VDC 250AC.
Click to expand...

Salas said:
OK then, keep 'em so to tell us how they compare to the ref decoupling lytics in other applications beyond DCB1 when you will be ready and start doing your Leds referenced V1.0 (AKA Hypno reg part) evaluations.
Click to expand...

DOH! I did not account that you will be using a resistor for the main Vref part. DCB1 is all LEDS. 6.8uF film the smallest possible MKP for you. Sorry.
 
#200
@Salas
Same toroid Tx & same thick wires lenght aprox. 5 cm used in both regs.

EB-806/271 PS/low noise reg. for digital application dual 2 x +-5-12 but really woks from 3.3V till 15V because I do it in triple PS (needs only the Tx 2x 8-15V AC)
119€00 + 20% Vat + Shipping

EB-803/244 same as 806/271 but instead dual is triple so you can do one plus or minus & the other twos one plus & one minus rails (needs also the Tx)
159€00 + 20% Vat + Shipping

Film caps I have on hand only small values:

Mundorf Mcap ZN
8 pieces 4.7uF/100V
4 pieces 1uF/630V

Auricap
4 pieces 1uF/450V
2 pieces 0.47uF/1.500V

Ampohm
2 pieces 10uF/630V

Infinicap TRT Wonder Signature
1 piece 10uF
2 pieces 4uF/425V
1 piece 2uF/425V
1 piece 1uF/425V

Infinicap TRT Wonder
1 piece 5uF 310V

Monacor MKP
2 pieces 3.9uF/250V
2 pieces 8.2uF/250V

Let me know if is possible to use some of them?

@Iko
Not so easy or difficult or better impossible to beat Mr. Erno?
 
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