Our “ETA” as a company name of ETA Industry Electric Co., Ltd. stands for the seventh letter of Greek and efficiency as a technical term. Since its establishment, ETA has been continuously contributing to the society through the next efforts to:
- Aim at top technology of compact products,
- Satisfy various requests from customers by lineup with big variety and wider scope, and
- Always offer “High Efficiency” as a product.
ETA will continuously satisfy requests from the new days as an innovator of power supply unit creating the next age in the electronic industry improving day by day. |
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Power supply unit is so important for electronic devices, especially for equipment for industry and civil life. Power supply unit of ETA is used in the industry sector and non-industry sector. |
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Power supply unit is the equipment to convert AC supplied to offices and homes into stable DC with good quality or to convert DC into DC. |
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The work of conversion of voltage is based on historical trial and error and main target for us is how to convert power with high efficiency. |
| Around 1960 |
Series Regulator (Linear regulator) was mainly used. Efficiency of conversion was 40-50%. |
| Around 1970 |
Power supply unit developed by NASA (National Aeronautics and Space Administration) for an artificial satellite started to be put to practical use. |
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ETA Industry Electric Co., Ltd. |
TESLACO |
| 1979 |
• Established
• Developed VT Series with efficiency of 80% as a first product
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• Established |
| 1990 |
• Developed SV Series with efficiency of 81% |
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| 1996 |
License agreement of Cuk Converter |
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• C&K completed |
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| 1998 |
• Developed BJ Series with efficiency of 85% |
• TESLA Converter was invented. |
| 1999 |
License agreement of Cuk Converter |
| 2002 |
• TESLA Converter 100W (ETD Series) was released.
• Efficiency 94.5% was realized. |
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| 2005 |
• TESLA Converter 300W (ETF Series) was released.
• Efficiency 96.5% was realized. |
| 2006 |
• TESLA Converter 600W (ETG Series) was released.
• Efficiency 95.0% was realized. |
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In 1960 Linear regulator was mainly used with efficiency of conversion 40-50% or more. In 1970 Power supply unit was put to practical use by NASA (National Aeronautics and Space Administration) for an artificial satellite for the first case.
In 1979 Hiroshi Kitagawa (President of ETA Electric Industry Co., Ltd. now) found importance of power supply unit in new age and developed VT Series with highly improved efficiency 80% from 70%, that is, ETA was established with 8 employees. At the same time, TESLAco which had agreement with ETA later was also established in USA and these two companies stared developing power supply unit with high efficiency. |
DR. Cuk of TESLAco |
Put to first practical use for artificial satellite
[Artificial picture]
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President, Hiroshi Kitagawa |
ETA Electric Industry Co., Ltd. |
In 1990 ETA developed SV Series with efficiency 81% and increased only 1% of efficiency for 10 years developing efforts. We understand its so difficult to improve efficiency. In 1995 TESLAco developed CUK Converter and made license agreement with ETA. Based on this epoch-making invention and technology of ETA, ETA developed C&K Converter and developed BJ Series in 1998 with highly improved efficiency 85%. In the same year TESLAco invented TESLA Converter and made second license agreement with ETA in 1990. After that ETA developed ET Series which realized prominently improved efficiency by its lineup and received big attention in the power supply unit industry.
ETD Series developed in 2002 realized efficiency 94.5% and ETF Series in 2005 did 95.0% which is too high efficiency for competitors to follow. |
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