EVLSTNRG-1KW STMicroelectronics

EVLSTNRG-1KW 1 kW SMPS digitally controlled multiphase interleaved converter using STNRG388A Data brief Description The EVLSTRNG-1KW evaluation board is intended for evaluating the STNRG388A digital controller in offline power conversion applications such as EV battery chargers, UPS and industrial power supplies. The architecture is based on a multiphase interleaved DC/DC converter using the half bridge SAB (Single Active Bridge) topology supporting more than 1000 W of power. The interleaved topology balances the power through 3 parallel stages. Also, the solution delivers high efficiency during the whole load range by enabling one, two or three stages Features depending on the load. Digital controller: STNRG388A The STNRG388A power conversion dedicated 3-phase interleaved DC/DC architecture peripherals (SMEDs) offer the flexibility to drive the interleaved power stages while guaranteeing Full load power: 1000 W (scalable up to 3 kW) the correct phase realignment during the Efficiency: more than 94% from 10% to full load activation and deactivation of each stage. Peak efficiency: 96.5% at full load Thanks to the digital core of the STNRG388A, it is Stand-by consumption: 425 mW also possible to monitor, control and debug the Input voltage range: 350 420 V dc EVLSTRNG-1KW board via a convenient HyperTerminal control. CC/CV output regulation Output voltage regulation: 133 V Output current regulation: 7.5 A Maximum output current for each phase: 2.5 A Modular power and control board May 2015 DocID027882 Rev 1 1/7 For further information contact your local STMicroelectronics sales office. www.st.com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chematic diagrams EVLSTNRG-1KW Schematic diagrams Figure 1. Power board schematic diagram - power section and feedback 5 VU O O V 77 TB7 954 T U T Q VB7Y . 54 V7YB 34 34 34 7 USM L L L M 7PU ( ( ( (54 (45 5(4 ( ( ( B ( S B PG (41 4(1 7 : : : N N N 0 ) 4 4 4 D D D . L 4 4 4 4 4 4/ % FS FS F S SF F S S F SJW WJS JSW SJW WSJ JWS 7 7 7 7 CSPXO7 L D V 1 - )5 - )5 5-) 0 %* 1 1 D 5 + VY VY YV HW 0 . %* 7 B O O O O O 7 7 YV */ C C C 2/7 DocID027882 Rev 1 3 3 L % % + % 2 )4 3 2 % % 6 *DUS *Q 3 *B % O DN DP QQF SF /F BS TFO F SF TJT PS 3 O 3 3 L % % % 6 % 2 )4 3 3 2 % % 6 3 3 % O 3 L % % % % 2 3 6 )4 3 3 2 % % 6 3 + 3 % O 3 3 % 3 3 3 3 3 + 3 *4 3 3 O )7.