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2. Numerically controlled oscillator - Wikipedia

   en.wikipedia.org/wiki/Numerically_controlled...

   The phase-amplitude converter creates the sample-domain waveform from the truncated phase output word received from the PA. The PAC can be a simple read only memory containing 2 M contiguous samples of the desired output waveform which typically is a sinusoid. Often though, various tricks are employed to reduce the amount of memory required.

3. Voltage-controlled oscillator - Wikipedia

   en.wikipedia.org/wiki/Voltage-controlled_oscillator

   A voltage-to-frequency converter (VFC) is a special type of VCO designed to be very linear over a wide range of input voltages. Modeling for VCOs is often not concerned with the amplitude or shape (sinewave, triangle wave, sawtooth) but rather its instantaneous phase.

4. Phase (waves) - Wikipedia

   en.wikipedia.org/wiki/Phase_(waves)

   Conversely, a phase reversal or phase inversion implies a 180-degree phase shift. [ 2 ] When the phase difference φ ( t ) {\displaystyle \varphi (t)} is a quarter of turn (a right angle, +90° = π/2 or −90° = 270° = −π/2 = 3π/2 ), sinusoidal signals are sometimes said to be in quadrature , e.g., in-phase and quadrature components of a ...

5. In-phase and quadrature components - Wikipedia

   en.wikipedia.org/wiki/In-phase_and_quadrature...

   The two amplitude-modulated sinusoids are known as the in-phase (I) and quadrature (Q) components, which describes their relationships with the amplitude- and phase-modulated carrier. [ A ] [ 2 ] Or in other words, it is possible to create an arbitrarily phase-shifted sine wave, by mixing together two sine waves that are 90° out of phase in ...

6. Time-to-digital converter - Wikipedia

   en.wikipedia.org/wiki/Time-to-digital_converter

   In an all-digital phase-locked loop ... It was designed as a time-to-amplitude-converter, constantly charging a capacitor during the measured time interval.

7. Power electronics - Wikipedia

   en.wikipedia.org/wiki/Power_electronics

   The maximum achievable phase voltage amplitude in the linear region, ma less than or equal to one, is v phase = v i / 2. The maximum achievable line voltage amplitude is V ab1 = v ab • √ 3 / 2. The only way to control the load voltage is by changing the input DC voltage.