2. Frequency problems

Figure 1 - Electric actuator control: general diagram

Figure 2 - Time diagrams defining the periods for each level

Figure 3 - Mixed control (analog and digital): block diagram

Figure 4 - Architecture for digital figure control

Figure 5 - DC motor control with analog current loop and digital speed loop: block diagram

Figure 6 - Digital speed control of a DC motor: block diagram in the context of continuous servo-controls

Figure 7 - Self-driven synchronous machine. Control of currents in a, b, c (stator reference frame) (see [51] in [Doc. D 3 648 ])

Figure 8 - Self-driven synchronous machine with analog current loop: a, b, c control implementation example

Figure 9 - Dual-feed asynchronous machine with analog close control and digital remote control (see [15] in [Doc. D 3 648])

Figure 10 - Association of a rectifier and a DC motor

Figure 11 - Signal shape

Figure 12 - Digital converter control: block diagram

Figure 13 - Digital converter control: architecture

Figure 14 - Approximation of the actual voltage by a sampled-locked mean value

Figure 15 - Block diagram for sample-and-hold average voltage approximation

Figure 16 - Sampled equivalent diagram of a numerical controller in the sense of small movements

Figure 17 - Time diagram