What are the differences between voltage type and current type?

The main circuit of the inverter can be roughly divided into two categories: the voltage type, which converts the DC of a voltage source into AC, with the filtering of the DC circuit done by capacitors; and the current type, which converts the DC of a current source into AC, with the filtering of the DC circuit done by inductors.

Why does the voltage and current of the inverter change proportionally?

PWM (Pulse Width Modulation) and PAM (Pulse Amplitude Modulation) are two different modulation techniques used in signal processing. Here are the key differences between them: 1. **Modulation Method**: - PWM modulates the width of the pulses in a signal to represent the information. The amplitude remains constant while the width of the pulse changes. - PAM modulates the amplitude of the pulses to convey information. The width of the pulses remains constant while the amplitude varies. 2. **Signal Representation**: - In PWM, the information is represented by the duration of the high state of the pulse. A longer pulse width indicates a higher value of the signal. - In PAM, the information is represented by the height of the pulse. A higher amplitude indicates a higher value of the signal. 3. **Applications**: - PWM is commonly used in applications such as motor control, light dimming, and audio signal processing. - PAM is often used in digital communication systems, such as in pulse code modulation (PCM) and in some types of data transmission. 4. **Noise Immunity**: - PWM is generally more robust against noise because it relies on the timing of the pulses rather than their amplitude. - PAM can be more susceptible to noise, as variations in amplitude can lead to errors in signal interpretation. In summary, the main difference lies in how they encode information: PWM uses pulse width, while PAM uses pulse amplitude.

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What are the differences between voltage type and current type?

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