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2. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   Sine wave inverters with more than three steps in the wave output are more complex and have significantly higher cost than a modified sine wave, with only three steps, or square wave (one step) types of the same power handling. Switched-mode power supply (SMPS) devices, such as personal computers or DVD players, function on modified sine wave ...

3. Royer oscillator - Wikipedia

   en.wikipedia.org/wiki/Royer_oscillator

   The original Royer oscillator/inverter is an example of a "self-oscillating circuit" since its frequency of operation is determined solely by the external source of power (the input DC voltage) and at least one of the main power components that process the full power that passes through the apparatus, refer note 1 below.

4. Electronic oscillator - Wikipedia

   en.wikipedia.org/wiki/Electronic_oscillator

   Simple relaxation oscillator made by feeding back an inverting Schmitt trigger's output voltage through a RC network to its input.. An electronic oscillator is an electronic circuit that produces a periodic, oscillating or alternating current (AC) signal, usually a sine wave, square wave or a triangle wave, [1] [2] [3] powered by a direct current (DC) source.

5. Power electronics - Wikipedia

   en.wikipedia.org/wiki/Power_electronics

   The normal operation of CSIs and VSIs can be classified as two-level inverters, due to the fact that power switches connect to either the positive or to the negative DC bus. If more than two voltage levels were available to the inverter output terminals, the AC output could better approximate a sine wave.

6. Phase-shift oscillator - Wikipedia

   en.wikipedia.org/wiki/Phase-shift_oscillator

   A phase-shift oscillator is a linear electronic oscillator circuit that produces a sine wave output. It consists of an inverting amplifier element such as a transistor or op amp with its output fed back to its input through a phase-shift network consisting of resistors and capacitors in a ladder network.

7. Grid-tie inverter - Wikipedia

   en.wikipedia.org/wiki/Grid-tie_inverter

   A high-quality modern grid-tie inverter has a fixed unity power factor, which means its output voltage and current are perfectly lined up, and its phase angle is within 1° of the AC power grid. The inverter has an internal computer that senses the current AC grid waveform, and outputs a voltage to correspond with the grid.