Difference Between Series and Parallel Inverter | New Topic 2025

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What is Series Inverter?

A series inverter connects the load to the commutating parts (inductor and capacitor). It is commonly employed in high-frequency applications, generating an alternating current (AC) output from a direct current (DC) source. The series inverter is classified as a resonant inverter since it uses the LC circuit’s resonance to generate an AC output.

📌 Specifications of Series Type of Inverter

• Input Voltage: Typically DC input ranging from a few volts to hundreds of volts.
• Output Frequency: High-frequency range, depending on the resonant frequency of the LC circuit.
• Power Rating: Can vary, depending on the design, from a few watts to several kilowatts.
• Switching Devices: Commonly uses thyristors, MOSFETs, or IGBTs.
• Efficiency: High efficiency due to minimal switching losses.
• Load Type: Suitable for resistive or resonant loads.
• Harmonic Content: Lower harmonic distortion compared to other inverters.
• Cooling Requirements: Depends on the power rating and heat dissipation of the components.

What is Parallel Inverter?

A parallel inverter is an inverter circuit in which the load is connected in parallel to the inverter’s output. It converts direct current (DC) to alternating current (AC), which is often utilized in high-power applications. Parallel inverters, as opposed to series inverters, are designed to manage greater loads more effectively by sharing the load among many inverter units.

📌 Specifications of Parallel Inverter

• Input Voltage: Varies depending on the design, typically 12V, 24V, or 48V DC.
• Output Voltage: Typically 110V or 220V AC (single-phase or three-phase).
• Output Power: Depends on the application, ranging from a few hundred watts to several kilowatts.
• Frequency: Usually 50Hz or 60Hz.
• Efficiency: Typically 85% to 95%.
• Waveform: Sine wave, modified sine wave, or square wave.
• Switching Devices: Generally uses transistors, thyristors, or MOSFETs.
• Protection: Includes overload, overvoltage, and short-circuit protection

Difference Between Series and Parallel Inverter

Below in this table we have listed the difference between series and parallel inverter –

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