Hi,
I've designed a power supply for a mic preamp I'm building. The circuit is taken from Douglas Self's 'Small Signal Audio Design' and provides +-17V rails for op-amps and +48V for phantom power.
I'm intending on mounting it in this enclosure https://www.enclosuresolutions.co.uk/product/513-0900/ .
Mains power entry will be via s switched and fused IEC socket, connected to the board using Faston connectors. The outlet will be on a 5-pin XLR, carrying the 17V rails, the 48V rail and two ground wires, one for audio, one for power, connected to a star ground on the chassis.
The bridge rectifier will be mounted underneath the board and bolted to the chassis, hence the hole in the PCB. The regulators will be done in the same way. Do you think this will provide enough heat-sinking for the regulators?
Do the circuit and PCB both look sensible?
Thanks,
James
I've designed a power supply for a mic preamp I'm building. The circuit is taken from Douglas Self's 'Small Signal Audio Design' and provides +-17V rails for op-amps and +48V for phantom power.
I'm intending on mounting it in this enclosure https://www.enclosuresolutions.co.uk/product/513-0900/ .
Mains power entry will be via s switched and fused IEC socket, connected to the board using Faston connectors. The outlet will be on a 5-pin XLR, carrying the 17V rails, the 48V rail and two ground wires, one for audio, one for power, connected to a star ground on the chassis.
The bridge rectifier will be mounted underneath the board and bolted to the chassis, hence the hole in the PCB. The regulators will be done in the same way. Do you think this will provide enough heat-sinking for the regulators?
Do the circuit and PCB both look sensible?
Thanks,
James
