STEVAL-IPE008V1 Energy meter (3-phase) demonstration board based on the STPM01 and STR715FR0 Data Brief Features ■ 3-phase meters ■ Multi-chip topology, in which each phase is monitored using a single-phase device ■ Common clock network ■ Power supply in fly-back topology using a VIPer12ADIP-E Description STEVAL-IPE008v1 AM03203v1 The STEVAL-IPE008V1 demonstration board shows how to design a 3-phase meter using STPM01 as measuring device and a VIPer12ADIP-E as SMPS (switch mode power supply). The STPM01 is a metering ASSP implemented in an advanced 0.35 µm BCD6 technology. It is designed for the effective measurement of active, reactive, apparent energies, VRMS, IRMS, instantaneous voltage and current, and frequency in power line systems that use the current transformer, Rogowski coil and/or shunt principle. This device can be used as a standalone on-board metering device in singlephase energy meter applications or as a peripheral in a microprocessor based single- or 3phase meter. In a standalone configuration STPM01 outputs a pulse train signal having a frequency proportional to the active power used, while in peripheral mode STPM01 is used in a microprocessor based application. In this case, measured data are read at a fixed interval from the device internal registers by means of SPI interface processed by a microcontroller. November 2008 Rev 1 For further information contact your local STMicroelectronics sales office. 1/8 www.st.com 8 Circuit schematics 1 STEVAL-IPE008V1 Circuit schematics Figure 1. Top layer circuit schematic 5V VDD P N VOTP VDD GND CLKIN CLKIN SDA SCS SCL LED SYN J2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SCL SDA SYN SCSL1 SCSL2 SCSL3 LEDL1 LEDL2 LEDL3 PHASE_1 P1 N VOTPL1 SDA SCSL1 SCL LEDL1 SYN VDD CLKOUT PHASE CON20 J14 PHASE_2 P2 N VDD U8A 74HC14A/SO C1 P N VDD GND VOTP SDA SCS SCL LED SYN VOTPL1 VOTPL2 VOTPL3 1 3 5 SCSL1 SCSL2 SCSL3 1 3 5 2 4 6 J1 VOTPL2 VOTP JUMPER3 J13 SDA SCSL2 SCL LEDL2 SYN 2 4 6 SDA SCS SCL SYN SCSJUMPER VDD 4.194304MHz 2 CLKIN CLKOUT 3 1 1 2 3 4 5 6 7 8 9 10 15pF R1 1M PHASE U8B 74HC14A/SO Y1 SMPS 5V 4 C2 PHASE_3 J7 1 P1 15pF P3 N VDD P N VDD GND CLKIN VOTP SDA SCS SCL LED SYN CLKOUT VOTPL3 J8 SDA SCSL3 SCL LEDL3 SYN 1 P2 P3 J9 1 N J10 5V 1 J11 1 J12 1 J5 P1 VDD P2 3.3V P3 N GND 1 SMPS PHASE AM03204v1 2/8 5 GND INHIB 5V@10mA C17 + C15 22uF 16V 10uH 125mA SMD L3 100nF SMD 8 TMBAT49 D5 10 6 1 2 4 5 LL4148 D10 C22 T1 220E SMD R21 2nF/2kV (Y1) 330uF 25V + C14 1K SMD R22 R24 C18 4 FB 1 3 180V D7 C19 220nF 630V 330k R58 330k 220nF 630V R59 C16 330k R60 10uF 50V C21 180V D9 120E + 3 4 Q1 STD5nk40Z NTC1 D4 ZMM 15/SOD-80 + 2.2uF450V 10E SMD R20 Vdd 5V GND 3.3V 7 L4931ABD33 GND U2 6 VIN GND VOUT 3 1 3.3V@100mA 2 C20 4.7K 1% SMD R23 PC817 U3 5 6 7 8 + 1000uF 50V GND 5.6K D D D D 4 U5 VIPer12AS/SO-8 S S 1 3 2 1 2 TS2431 100nF 50V SMD U4 C23 4.7K 1% SMD R25 3 1mH L2 D3 3 - BRIDGE D8 3 - BRIDGE 2 1 2 1 + + 4 4 22E 1W 22E 1W 22E 1W R61 22E 1W SO5K275/275V RV1 SO5K275/275V RV2 R62 R63 SO5K275/275V RV3 R64 P1 P2 P3 N Figure 2. 2 1 47nF 50V SMD C24 STEVAL-IPE008V1 Circuit schematics SMPS circuit schematic AM03205v1 3/8 C3 4/8 1 VOTP C4 1nF C5 L1 CT 3 1MY R6 3.4 P R8 R5 VDD LL4148 D2 1k 1k C6 1nF C7 P 10nF C9 1nF D1 1MY C8 2 R2 750 1 270K R14 LED U1 Sda Scl Scs Syn CLKout CLKin Vin Vip Iln2 Ilp2 270K 4 200K R16 2.2M R9 STPM01_TSSOP20 led MON MOP Vddd Vss Vcc Vdda Votp Ilp1 Iln1 R15 20 1 2 4 5 6 8 7 9 10 19 18 3 15 17 16 14 13 12 11 R17 C11 4.7u 0 R13 R10 2,2K C12 33nF 470 R7 150K N N VDD SYN LED VOTP GND SDA SCS SCL CLKIN CLKOUT VDD SYN LED VOTP GND SDA SCS SCL Figure 3. 1nF 2 Circuit schematics STEVAL-IPE008V1 Phase circuit schematic AM03206v1 STEVAL-IPE008V1 Figure 4. Circuit schematics Clock management network schematic PHASE_1 P1 N VDD P N VOTP VDD GND CLKIN CLKIN SDA SCS SCL LED SYN VOTPL1 SDA SCSL1 SCL LEDL1 SYN CLKOUT PHASE PHASE_2 P2 N VDD U8A 74HC14A/SO C1 2 CLKIN SDA SCS SCL LED SYN VOTPL2 SDA SCSL2 SCL LEDL2 SYN CLKOUT 3 R1 1M C2 1 VDD GND VOTP PHASE U8B 74HC14A/SO Y1 4 15pF 4.194304MHz P N PHASE_3 15pF P3 N VDD P N VDD GND CLKIN VOTP SDA SCS SCL LED SYN VOTPL3 SDA SCSL3 SCL LEDL3 SYN CLKOUT PHASE AM03207v1 5/8 Circuit schematics Figure 5. STEVAL-IPE008V1 Connectors schematic 5V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SCL SDA SYN SCSL1 SCSL2 SCSL3 LEDL1 LEDL2 LEDL3 VDD VOTPL1 VOTPL2 VOTPL3 SCSL1 SCSL2 SCSL3 1 3 5 1 3 5 J14 JUMPER3 J13 SCSJUMPER J2 CON20 2 4 6 J1 VOTP 2 4 6 SDA SCS SCL SYN VDD 1 2 3 4 5 6 7 8 9 10 AM03208v1 6/8 STEVAL-IPE008V1 2 Revision history Revision history Table 1. Document revision history Date Revision 25-Nov-2008 1 Changes Initial release. 7/8 STEVAL-IPE008V1 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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