Frequency Inverter China, China Frequency Inverter China Supplier

Frequency Inverter China - Gozuk 2000

Frequency Inverter China For Sale, Most Competitive Price, Fast Delivery, Custom Service, Wholesale Frequency Inverter China, Made in China, High Quality Products!, China Frequency inverter, inverter Supplier, Manufacturer.

frequency inverter types and designs

Three major designs are used, including variable voltage input, current source input and pulse width modulated. Hybrid and customized variation designs are also available.

Variable voltage input (VVI)—this is the simplest type of frequency inverter. The output switching devices approximate a sine wave voltage for the motor by producing a series of square waves at different voltages. VVI drives use a large capacitor in the DC link to provide a relatively constant DC voltage to the inverter.
Current source input (CSI)—similar to a VVI, the main difference is the CSI drive is able to force a square wave of current (rather than voltage) through the motor. CSI drives use a large inductor to keep the DC current relatively constant.
Pulse width modulated (PWM)—this is the most complex frequency inverter design, but also offers the most potential for increasing motor efficiency. The PWM inverter uses transistors to switch the direct current at high frequency to deliver a series of voltage pulses to the motor. The width of each pulse is tailored so that the voltage pulses interact with the reactance of the motor windings. This produces current flow in the motor that approximates a sine wave. more...

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Address: No.116 gongle road xixiang bao'an, Shenzhen, Guangdong, China, 518000
Tel: 8675528480239
Frequency inverters convert alternating current (AC) to direct current (DC), and then convert the DC back to AC at a frequency that will drive the motor at the desired speed. Although this makes the motor run less efficiently, the ability to respond to load variations reduces overall energy use. Without a frequency inverter, the motor can run efficiently at a single speed, but it may be running at a higher speed than needed. Variable voltage input (VVI)鈥攖his is the simplest type of frequency inverter. The output switching devices approximate a sine wave voltage for the motor by producing a series of square waves at different voltages. VVI drives use a large capacitor in the DC link to provide a relatively constant DC voltage to the inverter. Frequency inverter types and designs Three major designs are used, including variable voltage input, current source input and pulse width modulated. Hybrid and customized variation designs are also available.