Easy to install, to connect and to monitor, the Sunny Boy 1.5 is the SMA Solar newly developed inverter for residential PV systems.
With a nominal power of 1.5KWAC, the transformer-less inverter, which provides one MPPT and a peak efficiency of 97.2%, offers a suitable solution for small size photovoltaic system owners. It enables grid-injection as well as self-consumption, following the new trend in solar inverters. Integrated Ethernet and WLAN interfaces offer multiple possibilities for communication and data monitoring. Delivered without display, the integrated user interface makes possible to monitor system data on any smartphone, tablet or PC.
The system integrates two electronic boards with electrolytic capacitors from Epcos and a specific power module from Vincotech.
The WLAN board integrates a SMD WiFi Module, a chip Antenna but also a 3-axis MEMS Accelerometer probably used to integrate an anti-theft protection inside the inverter.
Based on a complete teardown analysis, the reverse costing report of the SMA Sunny Boy SB1.5-1VL40 Inverter provides the bill-of-material of the product and an estimation of the production cost of the solar inverter.
A detailed analysis of the Vincotech power module is also included in this report (IGBTs, diodes: manufacturer, technology, cross-section, costs.
COMPLETE TEARDOWN WITH:
- Detailed Photos
- Material Analysis
- Bill of Material
- Manufacturing Process Flow
- Manufacturing Cost Analysis
- Selling Price Estimation
Table of contents
- Executive Summary
- Company Profile & Main Features
- Reverse Costing Methodology
- Views and Dimensions of the Packaging
- Packaging Opening
- Views and Dimensions of the Inverter
- External Interfaces
- Inverter Opening
- Electronic Boards
> Main Board
> WLAN Board
- VINCOTECH Power Module Analysis
> Power Module – Global View
> Power Module Opening
> Power Module BOM
> IGBT & Diode Dies analysis
> Functional Scheme
- Accessing the BOM
- Estimation of the cost of the PCBs
- Estimation of the Housing Part Cost
- BOM Cost – Packaging & Housing
- Estimation of the Power Module Cost
- BOM Cost – Main Board & WLAN Board
- Material Cost Breakdown
- ABC Breakdown
- Accessing the Added Value (AV) cost
- Main Board Manufacturing Flow
- WLAN Board Manufacturing Flow
- Details of the Housing Assembly & Functional Test Costs
- Added Value Cost Breakdown
- Manufacturing Cost Breakdown
Estimated Price Analysis
- Estimation of the Manufacturing Price
- Functional Cost Breakdown
- Comparison with SMA Sunny Boy 3000TL
System Plus Consulting
Across the Enterprise, from marketing to purchasing and R&D, product manufacturing cost is a major factor which has to be measured and then optimized. Since 1993, System Plus Consulting’s mission has been to develop and sell the right tools and services to meet these costing requirements.
System Plus Consulting utilizes an engineering approach to cost. Cost models and technology expertise are combined to provide customers with an accurate and objective estimation of manufacturing costs and selling prices.
Headquartered in Nantes, France, System Plus Consulting is specialized in technology and cost analysis of electronic components and systems. During our 20 years in business, we have built and refined detailed cost models as the primary tools for hundreds of analyses. The highly qualified System Plus cost engineers combine broad and deep skills in semiconductor and electronics technologies with years of experience in cost modeling.
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− MEMS & Sensors
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