Spoerle
Junior Member level 2
I need a source for galvanizing
Input voltage 230V 50Hz 16A max
output 2V - 60V , current 1A-80A max 3kW
Mode CC, CV CP.
Ability of pulse work , for example 10ms pulse on 200Hz
After a series of vicissitudes, we decided to try our own design .
My current idea to which I welcome every knowledge and idea.
ZVS LLC full bridge with synchnous recifier
Input stage:
In the first phase, a simple mains voltage rectifier. Output 300-325V DC
Later you may finish the PFC, which will increase the output voltage to 350-425V.
Primary side: Full Bridge LLC resonant DC-DC Converter
Full H bridge with STW70N60DM2 N-channel 600 V, 37 mΩ.
MOSFET is driver 2x UCC21530 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver.
T1 is current transformet 1:200 for measure primary current
Primary DC voltge measure isolater 12 bit ADC over current divider , secondary ADC input measure temperature of heatsing.
Resonant frequency about 150kHz.
Simplified signals primari side
4x Full isolated PWM channel for driving H bridge
1x Primary current analog 0-3,3V ,2,15V for 10A
1x DC primary voltge 12 bit digital 0-450V
1x Tempertuire primary digital 12bit 125C max
Secondary side: Full Bridge Synchronous Rectifier
full briudge Synchnous Rectifier with 8x STP310N10F7 N-channel 100 V, 2.3 mΩ typ., 180 A
MOSFET is drivered 2xL6491 4 A gate driver
Secondary LC filter L1 about 12uH and 16x 10uF ceramic C
Output voltge measure ADC over resistor divider
Output current measure ADC HAL 0-100 40mV/A ACS758LCB-100U-PFF-T
Tempertuire sec. side ADC
Simplified signals primari side
4x PWM channel for driving Full Bridge Synchronous Rectifier
1x Secondary DC current ADC analog 0-3,3V ,3,2V for 80A
1x Secondary DC voltage ADC analog 0-3,3V ,3,09V for 60V
1x Secondary temperture ADC analog
1x PWM for riving Fan
2x analog SR1 SR2 analog for comparator for Driving Synchronous Rectifier
Digital control
ARM M4 with HRTIM STM32F334 otr STM32G4 wit HRTIM
What do you think?
Input voltage 230V 50Hz 16A max
output 2V - 60V , current 1A-80A max 3kW
Mode CC, CV CP.
Ability of pulse work , for example 10ms pulse on 200Hz
After a series of vicissitudes, we decided to try our own design .
My current idea to which I welcome every knowledge and idea.
ZVS LLC full bridge with synchnous recifier
Input stage:
In the first phase, a simple mains voltage rectifier. Output 300-325V DC
Later you may finish the PFC, which will increase the output voltage to 350-425V.
Primary side: Full Bridge LLC resonant DC-DC Converter
Full H bridge with STW70N60DM2 N-channel 600 V, 37 mΩ.
MOSFET is driver 2x UCC21530 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver.
T1 is current transformet 1:200 for measure primary current
Primary DC voltge measure isolater 12 bit ADC over current divider , secondary ADC input measure temperature of heatsing.
Resonant frequency about 150kHz.
Simplified signals primari side
4x Full isolated PWM channel for driving H bridge
1x Primary current analog 0-3,3V ,2,15V for 10A
1x DC primary voltge 12 bit digital 0-450V
1x Tempertuire primary digital 12bit 125C max
Secondary side: Full Bridge Synchronous Rectifier
full briudge Synchnous Rectifier with 8x STP310N10F7 N-channel 100 V, 2.3 mΩ typ., 180 A
MOSFET is drivered 2xL6491 4 A gate driver
Secondary LC filter L1 about 12uH and 16x 10uF ceramic C
Output voltge measure ADC over resistor divider
Output current measure ADC HAL 0-100 40mV/A ACS758LCB-100U-PFF-T
Tempertuire sec. side ADC
Simplified signals primari side
4x PWM channel for driving Full Bridge Synchronous Rectifier
1x Secondary DC current ADC analog 0-3,3V ,3,2V for 80A
1x Secondary DC voltage ADC analog 0-3,3V ,3,09V for 60V
1x Secondary temperture ADC analog
1x PWM for riving Fan
2x analog SR1 SR2 analog for comparator for Driving Synchronous Rectifier
Digital control
ARM M4 with HRTIM STM32F334 otr STM32G4 wit HRTIM
What do you think?