3 ms·
You’re assuming there’s a common ground between the two sides of the inverter. If it’s allowed to float, whichever terminal is supposed to be lower at the mome
by kd5bjo 7y ago
You’re assuming there’s a common ground between the two sides of the inverter. If it’s allowed to float, whichever terminal is supposed to be lower at the moment can be connected to the DC ground while the other is connected to the stepped-up voltage.
This is dual to using a full-wave bridge rectifier to get DC from AC, where a half-wave rectifier is simpler but needs energy storage to ride through the negative half of the cycle.
- DoctorOetker 7y agoyes, now you display you understand what it would address (a good design that delivers clean sinusoidal wave forms for all combinations of output power -which sum to smaller than or equal to the total supported power, a square region of power combinations- would be non-trivial but is theoretically absolutely feasible without energy storage elements [other than small ones for stepping up or down, control etc]) it would be nice if a flexible (supporting all operating points in the power square) 1 DC-in 2 AC-out quadrature voltage storage-less inverter had an open-source design. [One can not make a single outlet sinusoidal without equivalent storage capacitors / inductors, its simple mathematics, constant DC average power in - clean AC power out = power stored and released or simply wasted in sinusoidal oscillating fashion (regardless of implementation). to avoid storing energy, while requiring clean sinusoidal output, 2 AC outlets is the lowest number of output outlets that admit an exact solution since the sum of 2 power sinusoids in counterphase result in a constant output power.] the power operating point square is delimmited by 0 and 1/2 total power for each AC outlet.
- deleted 7y ago[deleted]