Product, technology and corporate bulletins

This page provides links to our bulletin library. These two page summaries have been specifically written to provide our customers and markets with the most up-to-date information on a particular subject.

Please contact us or one of our distributors if you need more detail.

Products and technical

PSS AND RDFC CONTROLLERSPDF link
Choosing the correct controller
a detailed comparison between C2470, C2150 and C2160 families including a decision tree to help choose the best controller for the PSU requirement.
BN-2832
C2160 family of flyback controllers
to meet tough new mobile phone no-load requirements to top specification 5 star standard (<30 mW) and without compromising on performance.
BN-3214
C2150 family of flyback controllers
to meet tough new 4 and 5 star no-load requirements for mobile phone chargers, as well as Energy Star and European CoC efficiency.
BN-3085
C2470 controller for linear PSU replacement
features, benefits and target applications for C2470 controller family
BN-1734
C2471 linear replacement PSU controller
details on parts targeting applications rated 1 to 6 W and for easy FCC 68 compliance
BN-2197
Controller packing options
detailed information on the various packing options for CamSemi controller families
BN-1743
Solder reflow recommendations
detailed technical requirements for Pb-free soldering of CamSemi parts
BN-2136
BN-2136-TChinese
BN-2136-SChinese


FLYBACK AND RDFC TOPOLOGIES, APPLICATIONS etcPDF link
Flyback topology - accurate primary side sensing
details of CamSemi proprietary, novel technique to deliver tight curent regulation +/- 5% and removal of up to 11 components typically used in feedback process
BN-3004
Transient response of CamSemi PSS controllers
explaining background to transient response times for mobile phone chargers and proving >4.2 V can be achieved
BN-3431
Quasi resonant switching benefits
further information on the EMI and efficiency benefits of quasi-resonant or valley switching
BN-3243
Power supply topologies vs RDFC
compares linear, RCC and flyback approaches with CamSemi's RDFC topology
BN-2142
RDFC - efficiency and no-load gains
explains how C2470 controller family can help you easily pass new global regulations such as Energy Star 2.0 for efficiency and no-load power
BN-1735
BN-1735-TChinese
BN-1735-SChinese
RDFC - resonant EMI benefits
explains why RDFC offers uniquely low EMI compared with flyback and RCC which makes it ideal for telecoms, IT, audio and other sensitive applications
BN-2526
RDFC - safety
explains the safety benefits of using a forward converter topology for off-line power conversion
BN-1736
RDFC – size and weight benefits
advantages over linear converters and flyback SMPS
BN-1741
RDFC topology - benefits for audio applicationsBN-1740
RDFC topology - benefits for digital picture framesBN-2168
RDFC topology - benefits for external hard disk drivesBN-2188
RDFC topology - benefits for modem routersBN-2146
RDFC topology - choosing the correct BJT
describing a variety of BJTs available for RDFC 100 V and 230 V applications including details of manufacturers, part numbers and applicable power ratings.
BN-2909
BN-2909-TChinese
BN-2909-SChinese

Corporate

DescriptionPDF link
CamSemi – company overview
corporate approach, financial overview, quality standards and related information
BN-1733