Jadeit
Member level 5
I'm looking for a conception for for construction current source ,
requirements
- current 0-75A
- output voltage 0-24V
- output power 0-1800W
- programmable current with step 100mA
- full digital control on output current as switching from C1 to C2 level with programable frequence 0-400Hz
- full digital control on output current as programable slew rate from C1 to C2
- full digital control on output polarization
How would you deal with it?
My first idea.
I certainly do not see it as real that I could design and mount the inverter (switching) directly from 230V.
- stage one - Switching power supply 48V 40A, for first test have 2c PS 24V 35A with serial and parallel joining
- second stage - Many parallel Synchronous Buck DC-DC inventer, for example 3x PS with LM5154 switching frequency between 150-400kHz with full ceramics capacitor and small SMD Instructor any as HCI2212 with high side current monitor and small MCU for control.
- third stage full high current MOSFET bridge for On/Off switching and polarization change. MCU for control bridge realize too controll full current source and output current control.
Is it stupid?
Is not that complicated?
Better idea?
Is there a more suitable IC for driving Bock converter in this design then LM5145 ?
Thans
requirements
- current 0-75A
- output voltage 0-24V
- output power 0-1800W
- programmable current with step 100mA
- full digital control on output current as switching from C1 to C2 level with programable frequence 0-400Hz
- full digital control on output current as programable slew rate from C1 to C2
- full digital control on output polarization
How would you deal with it?
My first idea.
I certainly do not see it as real that I could design and mount the inverter (switching) directly from 230V.
- stage one - Switching power supply 48V 40A, for first test have 2c PS 24V 35A with serial and parallel joining
- second stage - Many parallel Synchronous Buck DC-DC inventer, for example 3x PS with LM5154 switching frequency between 150-400kHz with full ceramics capacitor and small SMD Instructor any as HCI2212 with high side current monitor and small MCU for control.
- third stage full high current MOSFET bridge for On/Off switching and polarization change. MCU for control bridge realize too controll full current source and output current control.
Is it stupid?
Is not that complicated?
Better idea?
Is there a more suitable IC for driving Bock converter in this design then LM5145 ?
Thans