This metering module can be used to build a Class 0.5 Single-phase standalone or microprocessor based meter with or without Tamper detection for power line systems of U_NOM= 140 to 300V_RMS, I_NOM/I_MAX= 2/20A_RMS, f_LIN= 45 to 65Hz and T_AMB= -40 to +85 ˚C.

In standalone mode, a stepper motor display should be connected to pins W5 and W6. A user can select the type of stepper or the constant of output pulse frequency by changing LVS or KMOT configurators respectively.

In Microprocessor based mode, a control board with a microprocessor should be connected to the male connector P1 of the module using a 10-wire flat cable.

This metering module can be used to build a Class 0.5 Single-phase standalone or microprocessor based meter with or without Tamper detection for power line systems of U_NOM= 140 to 300V_RMS, I_NOM/I_MAX= 2/20A_RMS, f_LIN= 45 to 65Hz and T_AMB= -40 to +85 ˚C.

In standalone mode, a stepper motor display should be connected to pins W5 and W6. A user can select the type of stepper or the constant of output pulse frequency by changing LVS or KMOT configurators respectively.

In Microprocessor based mode, a control board with a microprocessor should be connected to the male connector P1 of the module using a 10-wire flat cable.

The purpose of the demonstration board is to provide an evaluation platform for the STPMC1 and STPMS2L devices, but it can also be used as a starting point to design a Class 1 meter for 2 to 4-wire power line systems using delta or wye service.

The STPMC1 is a metering ASSP implemented through an advanced 0.35 μm BCD6 technology.

The STPMS2L is an ASSP designed as a building block for single or multi-phase energy meters.

The STEVAL-IPE010V2 board is the motherboard based on the STPMC1 and works in conjunction with up to 5 STEVAL-IPE014V1 daughterboards (to be ordered separately), each with an STPMS2L mounted to sense the voltage and current of each phase.

Each phase is monitored by an independent daughterboard, in which an autonomous power supply is provided to the board itself and, once it is connected, also to the motherboard.

On this board, the STPMS2L device senses the phase current through a CT or a shunt sensor, and the phase voltage through a voltage divider.

The presence of dedicated networks greatly reduces the sampling (aliasing) noise and the crosstalk noise between voltage and current channels, increasing meter precision. The STPMS2L produces a sigma-delta stream, sent

together with the supply voltage, to the STPMC1 through a card edge connector.

The STEVAL-IPE010V2 motherboard receives the sigma-delta streams from the daughterboards which are further elaborated by the STPMC1. This device, from a 4.194 MHz crystal oscillator, provides a common clock with programmable frequency to all the daughterboards.

The STEVAL-IPE010V2 motherboard, through a 10-pin flat cable connector, can be interfaced to a microprocessor board to implement advanced metering features (multi-tariff, data management and storage, communication, etc). It also has stepper motor connectors for simple energy meter implementation.

The STEVAL-IPE014V1 is a daughterboard based on the STPMS2 “smart sensor” device, and is designed for use with the STPMC1-based STEVAL-IPE010V1 motherboard. Together the system provides a complete, ready-to-use energy meter application.

When connected to the motherboard, each STEVAL-IPE014V1 daughterboard serves a single phase, converting and multiplexing the voltage and current information and sending the stream to the STPMC1 energy calculator IC.

The STEVAL-IPE015V1 demonstration board is a class 0.5, single-phase microprocessor-based meter with tamper detection for power line systems of V_nom= 140 to 300 V_RMS,I_nom/ I_max= 2/20 A_RMS, f_lin= 45 to 65 Hz and T_amb= -40 to +85 °C.

A stepper motor display shows the values of the energy measured by the standalone meter.

The tamper detection feature implements two current transformers which monitor the live and neutral wire currents.

The STEVAL-IPE015V1 demonstration has a 10-pin connector to be interfaced to a microcontroller or to a PC through a parallel or serial programmer for reading data.

The STEVAL-IPE016V1 demonstration board is a class 0.5, single-phase microprocessor-based meter with tamper detection for power line systems of V_nom= 140 to 300 V_RMS, I_nom/I_max= 2/20 A_RMS, f_lin= 45 to 65 Hz and T_amb= -40 to +85 °C.

The tamper detection feature implements one current transformer and one shunt resistor to monitor the live and neutral wire currents.

The STEVAL-IPE016V1 demonstration board has a 10-pin connector to be interfaced to a microcontroller or to a PC through a parallel or serial programmer for reading data.

The STEVAL-IPE017V1 demonstration board is a class 0.5, single-phase microprocessor-based meter for power line systems of V_nom= 140 to 300 V_RMS, I_nom/ I_max= 2/20 A_RMS, f_lin= 45 to 65 Hz and T_amb= -40 to +85 °C. One shunt resistor is used for current sensing.

The STEVAL-IPE017V1 demonstration board has a 10-pin connector to be interfaced to a microcontroller or to a PC through a parallel or serial programmer for reading data.

The STEVAL-IPE018V1 demonstration board is a class 0.5, single-phase microprocessor-based meter for power line systems of V_nom= 140 to 300 V_RMS, I_nom/ I_max= 2/20 A_RMS, f_lin= 45 to 65 Hz and T_amb= -40 to +85 °C. One current transformer is used for current sensing.

The STEVAL-IPE018V1 demonstration board has a 10-pin connector to be interfaced to a microcontroller or to a PC through a parallel or serial programmer for reading data.

The STEVAL-IPP001V2 demonstration board is based on the STM32F10xxx microcontroller, ST7580 PLM module and STPMC1 polyphase energy-metering IC.

The STEVAL-IPP001V2 demonstration board implements a PLM smart-meter node which allows the public utility company to monitor energy consumption and other electrical parameters during one or more phases.

The voltage, current, power, power factor, THD, active and reactive energy and other stored information can be shown on an LCD locally or sent to a PLM data concentrator through a power line communication network.

The STEVAL-IPP002V1 demonstration board can be used as a guideline to designing a typical energy meter board for smart metering applications compliant with the IEC 61334-5-1 standard. It was designed to include advanced features as well as to fit the requirements for next generation energy meters. These extra features can be included in the board by modules for easy customizing.

The STEVAL-IPR002V1 is based on the M24LR64-R, a dual interface EEPROM which targets a wide range of applications such as industrial or medical equipment and consumer electronics.

RFID (13.56 MHz) and I²C serial communication are the two interfaces available with EEPROM. This demo is an autonomous battery-powered RFID tag with logging capability for recording and storing the sensor data of the following sensors: temperature sensor, humidity sensor, vibration, freefall, tamper and light.

The value of different sensors is stored inside the EEPROM and then at later stages these logged values can be retrieved over the RFID interface

for evaluation. This data logger can be inserted along with any transported article and this article

can then be tracked throughout the supply chain, and the data can be scanned at any point using an RFID reader.

This system can operate in two modes: data logger mode and event logger mode.

In data logger mode, the system reads all the sensor values once every second and stores the same inside EEPROM. The system stops logging the data when the allocated memory for a particular sensor gets filled.

In event logger mode, the system configures the threshold limits for each sensor. Whenever the sense value is outside the set threshold limits, it is stored in the EEPROM.

The STEVAL-ISV006V2 demonstration board is based on the SPV1040 high efficiency solar battery charger with embedded MPPT. The SPV1040 device is a low power, low voltage, monolithic step-up converter with an input voltage range from 0.3 V to 5.5 V, and is capable of maximizing the energy generated by even a single solar cell (or fuel cell), where low input voltage handling capability is extremely important.

Thanks to the embedded MPPT algorithm, even under varying environmental conditions (such as irradiation, dirt, temperature) the SPV1040 offers maximum efficiency in terms of power harvested from the cells and transferred to the output.

The device employs an input voltage regulation loop, which fixes the charging battery voltage via a resistor divider. The maximum output current is set with a current sense resistor according to charging current requirements.

The SPV1040 protects itself and other application devices by stopping the PWM switching if either the maximum current threshold (up to 2 A) is reached or the maximum temperature limit (up to 155 °C) is exceeded.

The STEVAL-ISV006V2 demonstration board is supplied by a PV panel with P_PKof 200 mW, which can be replaced with PV panels with P_PKup to 5 W (VOC < 5 V) depending on application requirements.

The output load is a 220 mF, 5.5 V super-capacitor that can be replaced with lead-acid, NiCd or NiMh rechargeable batteries (max voltage = 5 and > V_OCof the selected PV panel).

The demonstration board provides a simple charge status indicator using 2 LEDs, and 3 trimmers are available to allow setup according to the specific application requirements.

The STEVAL-ISV012V1 demonstration board is based on the SPV1040 solar voltage boost converter and the L6924D single cell Li-ion battery charger.

The SPV1040 device is a high efficiency, low power, low voltage, monolithic step-up converter with an input voltage range from 0.3 V to 5.5 V, and is capable of maximizing the energy generated by even a single solar cell (or fuel cell), where low input voltage handling capability is extremely important.

Thanks to the embedded MPPT algorithm, even under varying environmental conditions (such as irradiation, dirt, temperature) the SPV1040 offers maximum efficiency in terms of power harvested from the cells and transferred to the output.

The SPV1040 protects itself and other application devices by stopping the PWM switching if either the maximum current threshold (up to 2 A) is reached or the maximum temperature limit (up to 155 °C) is exceeded.

The L6924D device is a fully monolithic battery charger dedicated to single cell Lithium-ion/Lithium-ion polymer battery packs. It is the ideal solution for space-limited applications such as PDAs, handheld equipment, cellular phones, and digital cameras.

The L6924D normally works as a linear charger when powered from an external voltage regulated adapter. The device can also work in “quasi-pulse” charger mode when powered from a current limited adapter like that of a solar panel. To work in this condition, the charging current of the device should be set to a level higher than the solar panel maximum peak current.

Thanks to the L6924D’s very low minimum input voltage (down to 2.5 V), during the fast-charge phase the output voltage of the solar panel drops down to the battery voltage plus the voltage drop across the power MOSFET of the charger.

The main advantage of the quasi-pulse charging mode is that it shares the simplicity of the linear approach, where the power dissipated is dramatically reduced, thereby maximizing the charge rate from the solar panel.

The Li-ion battery solar charger with embedded (MPPT) and quasi-pulse charging mode is “best-in-class” in terms of system efficiency, allowing battery charging while maximizing available solar panel power.

In the STEVAL-ISV012V1 demonstration board, the L6924D is supplied by the output stage of the SPV1040, which is supplied by a 400 mW PV panel.

The STEVAL-ISV018V1 demonstration board contains three SPV1020s in the same PCB and is suitable for distributed PV panels with 3 isolated strings. The outputs of the SPV1020s can be connected in parallel or in series, despite the pairs of independent inputs.

The STEVAL-ISV018v1 default setting is output series connection.

The SPV1020, is a monolithic DC-DC boost converter designed to maximize the power generated by photovoltaic panels independent of temperature and amount of solar radiation.

The optimization of the power conversion is obtained with an embedded logic which performs the MPPT (max power point tracking) algorithm on the PV cells connected to the converter.

One or more converters can be housed in the connection box of PV panels, replacing the bypass diodes and, thanks to the fact that the maximum power point is locally computed, the efficiency at system level is higher than that of conventional topologies, where the MPP is computed in the main centralized inverter.

For a cost effective application solution and the meeting of miniaturization needs, the SPV1020 embeds the power MOSFETs for active switches and synchronous rectification, minimizing the number of external devices. Furthermore, the 4 phase interleaved topology of the DC-DC converter allows the use of electrolytic capacitors to be avoided, which could severely limit the lifetime.

It works at fixed frequency in PWM mode, where the duty cycle is controlled by the embedded logic running a Perturb and Observe MPPT algorithm. The switching frequency, internally generated and set by default at 100 kHz, is externally tunable, while the duty cycle can range from 5% to 90% with a step of 0.2%.

Safety of the application is guaranteed by stopping the drivers in the case of output overvoltage or overtemperature.