RediSem Ltd. Science Park Shatin Hong Kong Tel. +852 2607 4141 Fax. +852 2607 4140  Careers | Contact © Copyright 2014-2017 RediSem Ltd.  
RediSem is a fabless semiconductor company with proprietary resonant converter technology that delivers dramatic performance and cost improvements for lighting and power supply applications.
RediSem’s LED driver applications use single-stage LLC converters with integrated Power Factor Correction and no flicker. Combined with our high performance LED controller ICs RediSem LED LLC converter deliver best-in-class efficiency, accurate primary side regulation of output voltage and current and full protection (incl. SELV).
RediSem’s LLC converters have much lower EMI which improves networking equipment performance and reduces cost as less filter components are required in the power supply. All RediSem LLC converters use a high-voltage half-bridge and thus have inherently higher voltage surge capability than flyback converters.
RediSem’s ICs for fluorescent lighting add high performance, control and protection to the conventional self- oscillating bipolar transistor circuits used in many ballasts and CFLs. By adding RediSem’s fluorescent ICs lamp life is dramatically improved to over 30,000 lamp starts whilst offering efficient reliable operation over a wide range of mains voltages and temperatures.
Our Fluorescent Lighting ICs Our Fluorescent Lighting ICs
Our LED Driver ICs Our LED DRiver ICs Our Power Supply ICs Our Power Supply ICs
LED Driver ICs
Fluorescent Lighting ICs
Power Supply ICs
RediSem’s Latest Design News  RED2422 40W low-cost LED driver RediSem’s Latest Design News  RED2422 40W low-cost LED driver
RediSem Ltd. Science Park Shatin Hong Kong  Tel. +852 2607 4141 Fax. +852 2607 4140  Careers | Contact © Copyright 2014-2017 RediSem Ltd.  
Creative Solutions for Power Management RediSem
RediSem is a fabless semiconductor company with proprietary resonant converter technology that delivers dramatic performance and cost improvements for lighting and power supply applications.
Our LED DRiver ICs Our LED DRiver ICs Our Power Supply ICs Our Power Supply ICs Our Fluorescent Lighting ICs Our Fluorescent Lighting ICs
RediSem’s LED driver applications use single- stage LLC converters with integrated Power Factor Correction and no flicker. Combined with our high performance LED controller ICs RediSem LED LLC converter deliver best-in- class efficiency, accurate primary side regulation of output voltage and current and full protection (incl. SELV).
RediSem’s LLC converters have much lower EMI which improves networking equipment performance and reduces cost as less filter components are required in the power supply. All RediSem LLC converters use a high-voltage half- bridge and thus have inherently higher voltage surge capability than flyback converters.
RediSem’s ICs for fluorescent lighting add high performance, control and protection to the conventional self-oscillating bipolar transistor circuits used in many ballasts and CFLs. By adding RediSem’s fluorescent ICs lamp life is dramatically improved to over 30,000 lamp starts whilst offering efficient reliable operation over a wide range of mains voltages and temperatures.
LED Driver ICs
Power Supply ICs
Fluorescent Lighting ICs
Latest News:  Redisem and Honestar sign Distribution Agreement Latest News:  Redisem and Honestar sign Distribution Agreement