Just for your info.
Lambda make Isolating and Power factor correction front end modules which are pricey but probably not restrictively so.
The units take 85 to 265 V RMS input, 50 or 60 Hz, and produce 360V DC fully isolated outputs.
You can use that for the B+ and as the input for a further DC to DC Converter module to provide the heater supplies.
A very light weight power supply solution - just watch the thermal management issues.
The Units are:
PF1000A-360 (1000 Watt capability)
PF500A-260 (500 Watt capability)
There are also units which offer 280 Volt DC output.
Link to data sheets and application notes
http://www.densei-lambda.com/products/sps/ps_pm/pf_a/indexe.html
Cheers,
Ian
Lambda make Isolating and Power factor correction front end modules which are pricey but probably not restrictively so.
The units take 85 to 265 V RMS input, 50 or 60 Hz, and produce 360V DC fully isolated outputs.
You can use that for the B+ and as the input for a further DC to DC Converter module to provide the heater supplies.
A very light weight power supply solution - just watch the thermal management issues.
The Units are:
PF1000A-360 (1000 Watt capability)
PF500A-260 (500 Watt capability)
There are also units which offer 280 Volt DC output.
Link to data sheets and application notes
http://www.densei-lambda.com/products/sps/ps_pm/pf_a/indexe.html
Cheers,
Ian