I would start with V1.1 Mosfet output symmetrical VCC+ VCC-, set at 100mA fed from existing bridge and 2200uF filter caps for the 5532s in the analogue output. There are many chips with 3.3V needs. I would substitute the A+3.3 and D+3.3 regulated feeds for V1.1 BJT with 10.000uF electrolytic filter cap. You should measure the current at A,D, feeds and set CCS accordingly. See in the SSLV1.1 build thread for guide, other builder's examples etc.
SSLV1.1 BJT output option, 1000uF PANASONIC FC Vref cap for clock. 220uF for ADC.
I will change my Vref Pana FC 220uF 63V for 1000uF 63V
With V1.2R can I get +1.2V Vout or have I to change something?
Tx 9VAC 1A
R1 0R5 0.26V across = current 528mA
R12 500R trimmer
Dummy load 15R
Vout 7.54V fixed can't go high or low with trimmer
I'm sorry answered my question in other post: "voltage too low for V1.2R", so I have to do Disco's reg
Disco's reg Vout 1.2V 360mA performing very very good instead Trident 1.2V in BII
What is "Disco's reg"?
Edit:
Oops, sorry, I found it.
Last edited:
What is "Disco's reg"?
Oops, sorry, I found it.
It was one rather basic variation for small voltage margins that I designed for powering DHT heaters on a request by Dutch member Disco. See the post number I mentioned. It has been shown on the #26 preamp thread too on the actual preamp along with double mono original SHV with BJT Vref. Its sometime back.
It had a D45H8 for output originally (#1616). What did you use there and what is its Vbe voltage for your current settings if you measure voltage between base and emitter?
Yes I use a D45H8 as output mosfet the Vbe loaded is 0.645 VDC & without load 0.652 VDC
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