You wanna use as example 19V laptop adapter and split it half , to have +-9.5V as i understand ? For a capacitor based charge pump ,if you need high currents ( amplfier as load ?) , it's a bit hard mission . Such supply would be unregulated ,and how much voltage drops with load / voltage no load will depend on capacitors ESR , their capacity ,and switching transistors RdsON mostly . There exists a TDA1560Q , which use external capacitors ,for boosting power supply voltage .Wondering what kinda of switches used for that .
I am interested in finding out if the Meanwell SMPS supplies we frequently see (RPS/RSP/UHP/etc. series) can be used to create split supplies.
For example, can a 48VDC Meanwell UHP-500-48 be used to create +/-24VDC for use with amplifiers?
Are there other ways than what is described above?
For example, can a 48VDC Meanwell UHP-500-48 be used to create +/-24VDC for use with amplifiers?
Are there other ways than what is described above?
Possible ,but virtual ground must be made by amplifier too, the same powerful , as amplifier you wanna power from that psu.
Yes, you need a midpoint generator. If you want 20A capability it gets a bit more difficult, but can be done with a few higher power devices in parallel. This is not usually a recommended configuration except for very low power use, ideally with a constant or near-constant current draw as supply impedance is quite high.