STEVAL-IPFC01V1 STMicroelectronics

STEVAL-IPFC01V1 Data brief 3 kW three-channel interleaved PFC reference design based on the STNRGPF01 digital controller Features Input voltage range: 90 to 265 V AC Line frequency range: 47 to 63 Hz Maximum output power: 3 kW at 230 V Output voltage: 400 V Power factor: > 0.98 at 20% load Total Harmonic Distortion: <5% at 20% load Mixed-signal average current mode control, CCM fixed frequency operation Switching Frequency: 111 kHz Cycle-by-cycle regulation (analog current control loop) Input voltage and load feed-forwards Phase shedding Burst-mode operation Overvoltage protection Thermal protection Status indicator LEDs Inrush current limiter function Cooling function Description The STEVAL-IPFC01V1 3 kW interleaved PFC reference design is based on the Product summary STNRGPF01 digital controller and includes a separate power board, control board 3 kW three-channel and programming board. The STNRGPF01 is a digital configurable ASIC developed interleaved PFC based STEVAL- by STMicroelectronics, which can drive up to three channels in an interleaved PFC on the STNRGPF01 IPFC01V1 for industrial applications. digital controller The STNRGPF01 digital controller on the control board implements mixed signal three-channel (analog/digital) average current mode control in CCM at fixed frequency. The analog interleaved CCM PFC STNRGPF01 section ensures cycle-by-cycle current regulation, while digital control manages the digital controller non-time critical operations. You can use the eDesignSuite software available on the ST website to configure the STNRGPF01 to satisfy the specifications of each interleaved PFC. DB3706 - Rev 3 - September 2019 www.st.com For further information contact your local STMicroelectronics sales office.STEVAL-IPFC01V1 STEVAL-IPFC01V1 overview 1 STEVAL-IPFC01V1 overview Figure 1. STEVAL-IPFC01V1 block diagram 1. I/O measurement signals 2. Analog circuitry 3. Power stage 4. Digital control section with STNRGPF01 digital controller EMI filter 3-channel AC DC 3 3 & Load 3 interleaved input output rectification PFC PWM0 PWM1 PWM2 1 I 3 tot fb 3 Driver Driver 3 Driver Auxiliary 3 Power Analog Current 2 2 Supply 4 4 flip-flop flip-flop compensator filter SIN REF PWM0 SET1 RESET1 SET2 RESET2 OUT PI 2 , 3 VDD 4 Triangular TRIANG REF VSS 2 wave 1 CLOCK IOUT STNRGPF01 generator 1 1 VIN VOUT The STEVAL-IPFC01V1 implements mixed signal (analog/digital) control, so the converter can manage a range of input and output conditions and still remain highly responsive to fast transients in input signals. The inner current loop is a hardware analog proportional-integral (PI) compensator that ensures the highest possible bandwidth and cycle-by-cycle sensing and regulation. The outer voltage loop is performed by a digital PI controller with fast dynamic response. DB3706 - Rev 3 page 2/9