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STEVAL-ISV018V1

300 W PV converter to be integrated into a photovoltaic panel based on SPV1020 and bypass diodes SPV1001N30 and SPV1001N40
  • active 活性

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.

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Data Brief

Key Features

  • PWM mode DC-DC boost converter
  • Duty cycle controlled by MPPT algorithm with 0.2% accuracy
  • Operating input voltage range: 6.5 V to 40 V
  • Operating output voltage: up to 120 V
  • Overvoltage, overcurrent, overtemperature protection
  • Built in soft-start
  • Up to 98% efficiency
  • Automatic transition to burst mode for improved efficiency at low solar radiation
  • SPI interface for remote telemetry and control
  • RoHS compliant

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图案 资源

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DB1642: 300 W PV converter to be integrated into a photovoltaic panel based on SPV1020 and bypass diodes SPV1001N30 and SPV1001N40
1.0 255 KB

Application Notes

描述 版本 大小
pdf
AN4217: Designing the SPV1020 with serial and parallel output configurations
1.0 2,480 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
zip
STEVAL-ISV018V1 gerber files
1.0.0 3,955 KB

Bill of Materials

描述 版本 大小
pdf
STEVAL-ISV018V1 BOM
1.0.0 54 KB

Schematic Pack

描述 版本 大小
pdf
STEVAL-ISA018V1 schematics
1.0.0 61 KB

样品 & 购买

顶部
产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISV018V1ActiveSPV1001N30; SPV1001N40Buy Direct110.25Distributor reported inventory date: 2014-10-25
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20
P&SOrder NowASIA/PACIFIC11
DIGIKEYOrder NowWORLDWIDE81
MOUSEROrder NowWORLDWIDE11
Ecopack2-

(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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