Hi Salas,
great, not shabby at all! Finally something in the ball park.What detail of component or module you think is most critical for increasing this parameter?
What would be the max. expected value (PS still nice behaving) for current slewrate capability assuming 2Adc at 160V?
Thanks,
Those questions involve a full scaled up power components redesign to be answered
Rectifier hybrid Graetz AZ1 + two UF4007 (Between power transformer and the AZ1 one 100 ohms resistor.
Now only one 125VAC, attached Vout pic.
This arrangement looks safer.
Let us know how it goes. Too much voltage drop before.
Look to gate Zeners first. Take them out and leave their spots blank. Q1 must develop about -1.5V Vgs for 40mA which is Q2's Vds also as applied in the cascode. Q2 should have about same Vgs in its own turn.
1uF decoupling is OK for avoiding basic chance of test rig oscillation.
1uF decoupling is OK for avoiding basic chance of test rig oscillation.
Look to gate Zeners first. Take them out and leave their spots blank. Q1 must develop about -1.5V Vgs for 40mA which is Q2's Vds also as applied in the cascode. Q2 should have about same Vgs in its own turn.
1uF decoupling is OK for avoiding basic chance of test rig oscillation.
Attached pics with measurements
Attachments
PSU Vin 44V
Q1 VGS 26V
Q2 VDS -13.8V
I forgot to tell you that before this measurement I changed the two gate resistors of DN2540
- Home
- Amplifiers
- Power Supplies
- Simplistic MosFET HV Shunt Regs