Cosel Digital Bus Converters Feature Efficiencies up to 93%
Cosel has announced the “CHS series” high-power dc-dc converter family with double the power density of its previous-generation CES/CQS bus converter modules. The CHS family of isolated converters consists of an 80W sixteenth-brick and a 200W eighth-brick.
According to the company, the improvements in efficiency were achieved through proprietary synchronous rectification technology combined with microcontroller-based digitally assisted control. In addition to maintaining high efficiency over a wide range of load factors the CHS series meets IEEE802.3 Ethernet standard for 2250V input-to-output isolation.
The sixteenth-brick models deliver up to 25A at 3.3 Vdc and measure 33mm X 10.5mm X 22.76mm. The eighth-brick models deliver up to 50A at 3.3 Vdc and measure 57.9mm X 10.5mm X 22.76mm. The size, shape and pins are compatible with global standards. They are RoHS-compliant and come with a 5-year warranty.
The 80W version is available with a surface mount (SMD) option and the 200W version can come with an optional base plate. Also, remote control is available as negative (standard) or positive (optional) logic, and the safety circuits can auto-recover (standard) or shut down (optional). The CHS series are fully regulated converters that are designed to provide stable bus voltage to point-of-lead regulators in an intermediate bus powering architecture.
