• The existing commercial power supplies are mainly inductor-based converters. Those converters are usually heavy, bulky and low power density due to the inductor-based (magnetic) elements. They are also unsuitable for high-temperature environment.
• Magnetic-less switch-capacitor converters are conventionally in high complexity, and high switch’s and capacitor’s stress.
• The global DC-DC converters market was valued at US$3.46 Billion in 2016 by MarketsandMarkets^₁

1.http://www.marketsandmarkets.com/Market-Reports/global-dc-dc-converter-market-17565254.html 

• Novel family of switched-capacitor (SC) converter composed of basic modules. (Fig 1)
• A bidirectional SC converters with high-gain ratio of any positive integer
• Conversion ratio being flexible means suitable for many applications
• The input and output of the proposed converters are of common ground
• Lower number of switches and capacitors and lower switch's and capacitor's stress
• Easy control and Simple driver circuits
• The efficiency of a nine-time SC converter prototype (Fig 2), operating at 20-V input voltage and 100-W output, is higher than 98%  (without driver's loss) or 95.5% (including the driver's loss) over the entire load range between 25 and 100 W. (Fig 3)
• The output voltage ripple is less than 1%.

• Highly efficient, Light-weight and compact DC-DC power converters.
• For example, battery applications for distributed renewable energy resources

• EP (PCT) Application No. 15882965.5 
• US (PCT) Application No. 15/546,574 
• PRC (PCT) Application No. 201580076950.5 
• Device prototype is available in laboratory scale