To provide feedback for inverters, sensors such as the following are commonly utilized:
• Voltage feedback measures the output voltage.
• Current feedback measures the output current.
• Tachometer (or) Encoder provides speed feedback (in motor drives).
• Position feedback enables accurate control.
By
• Maintaining stability,
• Regulating output, and
• Enabling closed-loop control
that are all accomplished by the transmission of this feedback to the inverter controller, which may be a Pulse Width Modulation(PWM) (or) Digital Signal Processor(DSP).
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