About Us

Research and Development (R&D)

R&D investment in the past 5 years

Unit 2014 2015 2016 2017 2018
Total R&D investment USD (millions) 85.5 87.6 102.2 113.3 111.9
R&D investment as % of Sales % of Sales 6.3% 6.4% 7.7% 7.8% 6.8%

R&D headcount per location

Locations 2014 2015 2016 2017 2018
Thailand 450 445 444 480 535
Europe 316 309 318 273 295
India 60 88 108 154 245
Total 826 842 870 907 1,075

Research and Development (R&D)

In2019,we continued our R&D investmentswith specific focus on our fast growing businesses electro-mobility, networking, datacenters and industrial power. We achieved major expansions of the product lines andcontinued improvement of our product’s key features efficiency, power density and digital intelligence. Additionally, Delta R&D increased the application range and customer base respectively of its power technology products like industrial wireless charging, combined charge units for the electro-mobility and artificial intelligence.

The healthy view of the markets, customers and their demands combined with R&D manpower’s expertise and strengths is the keyto Delta’s competitiveness and leadership in green environment and efficient energy saving power devices.Delta has a worldwide network of R&D centers located in Asia and Europe. These centers cooperate very close together. In addition, Delta R&D engaged in cooperation globally with renowned universities. We participate in several research programs to ensure sustainable growth with unique technology.This collaboration is a big benefit with innovative and green ideas coming together with Delta R&D expertise.It is a reliable way to establish a long-term and continuous relationships with young and experienced talents, to take care of high-tech, new and sustainable products.

Delta believes in close cooperation with key customers.Our customers are both worldwide market leaders and innovators of new technology products.Delta welcomes new customers in new industries, which give the opportunity to drive new processes and implement new technologies for upcoming market challenges.

Through Delta’s green philosophy, we continued our leadership in the electronic world, which has been pursued over decades. Delta strengthens and follows its wish to reduce pollution worldwide.

Server Storage Networking (SNT)

Delta’s worldwide R&D team has accumulated decades of experience and knowledge in developing highly sophisticated customized power supplies for well-known companies in the IT domain, networking and telecommunications industry. We have applied our knowledge to develop new products,which rank far beyond traditional standard power supplies.This knowledge enables us to become a system solution provider.

In 2019,Delta’s R&D team won multiple projects for leading customers in the IT/Cloud market supplying unique products. Our world-leading customers recently developed very innovative, unique datacenter architectures achieving a high competitive advantage. A key element for this advantage is our product: the power supply using Delta proprietary technology. This requires high confidentiality from us to protect our customer’s interest. Here the trend to higher efficient and more reliable three phase architectures continued.

In addition to three phase server power product developments, which require a high degree of customization, we developed a modular platform for our standard products. Our modular platform “Delta Smart Design” comprises and a highly standardized process from quote to mass production using well-tested building blocks, which are configured to the end-product. This allows us to respond much faster to customer requests and reduce the product design cycle significantly.

In parallel to this, we continued our efficiency roadmap for new products with up to 98% peak efficiency delivering 3000W, 5000W and 6000W output power and achieving power densities of larger 60 W/in³.

Here, Delta R&D uses new wide-bandgap semiconductor devices made from GaN and SiC combined with our new circuitry and magnetic components to achieve both high density and high efficiency at the same time.Delta filed several patents to protect our intellectual property.

Our engineers developed a special unit having a very high holdup time of 30 ms to enable the usage of a special memory type in the connected server. This period is 2.5 times longer than the standard of 12ms.

One major milestone for us was the shipment of a 1500W/24V power supply for use in semiconductor manufacturing equipment. We wanted to penetrate new markets with our technology and could enter semiconductor equipment market with this outstanding unit. This special design uses the advantage of water-cooling and can be directly connected to the process water lines inside semiconductor fabs.

In addition, the power supply is housed in an IP65 chassis to ensure that the clean room environment is secured from any pollution. Due to the closed housing, the inner components are thermally connected to the cooling plate via potting material. The product’s qualification is complete and mass production ramp up will be in Q1/2020.
In addition to sole power supply design, Delta R&D’s core achievement was the continuous extension of our product offering to additional products used in datacenters, like complete sever shelfs with distribution panel and power distribution units.

Solutions for Electric Vehicles (EV)

In 2019, Delta R&D continued to extend the product offering for on-board automotive charging products. Here, we received additional orders for PHEV in addition to our combined charge units under development for BEV.

These combined units comprise a product range from single phase 3.7 kW to three phase 22kW chargers. The 3-in-1 units contain the AC/DC charging function from 3.7kW up to 22kW together with a 3.7 kW DC/DC converter supplying the 12V board grid from the high voltage battery and a vehicle control unit (ECU).

We brought all units being under development in 2018 from design to final qualification and will release them the next future to mass production. In addition to this we provided to our customers in early involvement inquiries theprove of concept of new X-in-1 units (On-Board-Charger, DCDC Converter, DC Charging Control, Heating System, Battery monitoring) combining multiple functions necessary for the operation of PHEV or BEV.We expect new awards resulting from these involvements very soon.

By deriving these from pre-developed platforms, Delta achieved a very high maturity level of this units very fast resulting in short development times.Key new platform developments have been executed for bi-directional power conversion technology and new alternative circuits for three phase charging delivering the right technology for our future products.

Custom Designed Power Supplies for Industrial/ Medical (IM) Device Applications and Charger for Industrial Electrical Vehicle (IEV)

Delta’s R&D team has realized several major innovations in 2019 to provide our customers with an outstanding cost-performance ratio for industrial and medical applications, such as factory automation, machinery and robotics, battery charging technology, ultrasound application, artificial respiration and dialysis.The usage of advanced power and control technology has led to products with the best parameters in stability, efficiency, operation flexibility, robustness and reliability.

This also includes the use of SiC and GaN semiconductors to achieve efficiency and power density targets. Several patents for industrial products are applied which demonstrate the technical competence of the IMBU.

Delta’s R&D team designed a 20kW and a 30kW wireless systems for forklift charging. Customer feedback is extremely positive to this outstanding product. Other customers have followed to introduce this new technology in their applications.

The Primary and Secondary Pad of a Wireless Charging System could be installed in a horizontal or vertical orientation. In the picture, it is an example of a vertical orientation. In case of a horizontal oriented installation, the Wireless Charging System has to check that there is no metal object between the primary and secondary pad before starting to transfer energy from theprimary to secondary pad.

Throughout 2018 and 2019, the R&D team worked on several industrial battery charger platforms. Gaining a large US customer with this technology enabled us to tackle the mass production market with these new modular power units and cabinets at the same time.

The R&D team also develops a platform of power supplies that meet the requirements of industry and medical applications. The topology and semiconductors are selected to achieve the best in power density and efficiency.



Research and Development India

As part of DET R&D team, Delta India’s R&D team has continued its expansion with increased development effort in multiple business areas and in developing new technologies.

Central PV Inverters

After successful installation of close to 1501MW PVIs across India, Megawatt Power (MWP) R&D India successfully installed the high power inverter DelCEN 3000 which is an outdoor, IP 65 PV inverter. Now the trend in India is to have 1500Vdc panels for which MWP R&D has come out with a new design of 2.5MW, 1500V PVI. Production is planned in 2019 onwards.

Power Quality Restorer

The PQR (Power Quality Restorer) product vertical of MWP R&Dhas successfully developed the 6MVAR/25kV SVG/APF for the traction substation application in collaboration with HPRT (High Power Railway Traction) Shanghai. MWP R&D has built the lab including a dedicated traction sub-station which enables full power testing capability within our Delta lab premises. The product belongs to the 52kV class and is the highest voltage product that delta has ever designed. Further, the system is highly efficient with 99% efficiency.

MWP R&D is developing new onboard power for locomotive in railway traction applications. The R&D team has already developed an auxiliary (3x130kVA) power converter and the main propulsion converter (4.5MW) for Indian Railway applications. The first trial runs are targeted during 2019.

Auxiliary Converter for Railway Locomotive

This product is part of the Indian locomotive set. It provides controlled power to critical locomotive loads mainly for traction motor blower, oil cooler blower, air compressor for braking, oil pump of traction converter and transformer. It consists of three converters of 130kVA capacity to provide adequate redundancy. The converters are single phase to 3 phase AC power. Apart from that, the product also houses a battery charger of sufficient capacity with an output voltage of 110V DC. This product is awaiting inspection from customer and mass production is planned in 2020.

Main Propulsion Converter

This product is designed for driving traction motors used in the Indian Railways 6000HP locomotive. It replaces the GTO based traction converter with advanced IGBT based converter.

Prominent features are:

  • • Medium voltage 4.5kV IGBT stack.
  • • 2.55MW power rating
  • • Water cooled stacks
  • • Regenerative braking capability
  • • Dynamic tractive and braking efforts Customer inspection and trial run is planned in 2020.

Telecom Power Solutions (TPS)

Companies in the matured telecom market needs continuous innovation and cost leadership to be competitive and continue as the market leader. Multiple solutions are arriving to India’s expanding and 4G market. TPS R&D in India is increasing its investment in anefficient and varied rectifier range, which caters to the global market.

Delta Rectifier Controller Series. (Rectifier with Intelligent Battery Charger)

DRC1000B and DRC1500B are the new products in Delta’s new Delta Rectifier Controller product series that delivers power to the telecom system load and battery. This product was developed with inbuilt controller with programmable battery charging parameters using RS-485 and CAN. GUI is used to program battery parameters and manage alarms, parameters at I/P, system load and battery load. Programming using mobile app will be our future enhancement for this series.

The new range of telecom inverters has high efficiency and compact footprint. These inverters have a range from 300 VA to 4500 VA catering to various combinations of power requirements.

The next generation inverters are capable of paralleling without extra communication, thus enabling easy expansion of power up to 75 KVA. These compact high efficiency inverters will enable AC/DC solutions for telecoms that need combo power onsite.

Critical Infrastructure Solution (CIS)

R&D developed a new generation high power UPS with Integrated I/O panels. This new integrated Megawatt UPS is installed at prestigious Indian customersand is well received. The integrated solution for data centers with Mega Watt requirements has a common display, which gathers all information from each UPS frame (MUF) and displays it as combined information on the HMI.

Solar Hybrid UPS

R&D’s new Solar Hybrid UPS provides a unique solution of energy management from multiple sources, while ensuring clean power to load. The intelligent algorithm built in the system make sure the green energy is utilized to the maximum and ensures best back up all time with minimum energy cost.

Industrial Automation Software (SW)

During last 3 years, Delta India R&D has expanded to include SW competence. This enabled the team to contribute in developing state-of-the-art SW for our IA product platform. The new SW envisages a unified architecture and platform for our entire product range.



The first SW suite under development is a unified architecture for development of future software to be aligned with Delta branding for the entire product range of Delta Industrial Automation Business Group (IABG). The first public version of this platform, to be launched in April 2020, will provide our customers an integrated environment to design, program, simulate, monitor & diagnose industrial solutions built with Delta parts. In the long run, this platform will enable Delta Electronics to evolve from a components supplier to a solution provider for Industrial Automation. The platform uses industrial standards like PLCOpen and AML to incorporate interoperability with similar platforms developed and under development from competitors.

Future Outlook

In the coming years, the Delta India R&D team will enhance ourproduct innovation in high power converters, storage and alternate power usage. The team will expand to include significant SW development. Ourteam is investing in new areas of high power converter application including micro-grid, PCS and related areas.

Delta India R&D is also planning to develop EV charging solutions catering to DC HV charging with 200-700 V to participate in the ambitious program of only EV by 2030.

We are makingnew investments in EV solutions (OBCM and Traction Inverters) and SW technologies to cater to the global growth plan. Our Indian R&D team will collaborate with other Delta R&D centers in leveraging technical strengths across groups and providing competencies that add value to Delta globally.

Standard Industrial Power Supplies

IPS (Industrial Power Supplies) R&D teams in Thailand and Taiwan successfully delivered many new products in 2019 for a variety of applications. Our new product series PJL for stage lighting wasintroduced, the first range of its variety, with great success. Our open frame products forhousehold applications including small form factor power supply with UPS functionality and addition of 600W with a variety of output voltage ranges, received great responses. This enabled IPS to penetrate many regions within a short timeframe.

We released several new panel mount standard power supplies in power ranges of 50W, 100W and150W with low profiles thatgave us adistinct advantage over ourcompetitors. For the LED driver market, the new LNE series with high power 600Wreleasedtest results for both indoor and outdoor lighting requirements. This series is designed to cater to very high surge immunity single pulse (upto 10KV) with efficiency levels up to 96% and IP67 design making them an essential part of sports arena lighting and agricultural lighting.

In the medical standard power supplies segment, we released the 500W MEB-500 with a very high power density of upto 14.26W/IN3 and the smallest foot print 1.9”x 2.75”. Its 25W max power and power density of 4.54W/IN3with convection cooling complying to 2xMOPP makes it a greataddition to our product portfolio. Wereleasedmany other ITE adapters in the 60W power range with a variety of output voltages to address the standard ITE adapter market.

We believe it will be another exciting year for IPS in 2020. IPS R&D willreleasemany more new products in 2020 for various segments in the DIN rail platform andopen frame platform for single phase and three phase applications.The Delta brand is becoming more recognizable as a great standard power supply in ourchannels and with continuing discipline in market and product research, IPS will continue to gain market share globally in 2020 and the coming years.