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DC/AC inverters designed to light Cold Cathode Fluorescent Lamps (CCFL's) are a very specific sub-class of inverters in general. These inverters tend to have very low output currents and very high output voltages. Since the lamps are used in signage where constant light output is needed as well...

...someplace. In the case of an AC PWM drive, that someplace is back to the DC bus (The DC bus is that portion of the drive after the rectifier section where DC power is collected and stored for use by the inverter section)....

A power inverter is a device that converts low-voltage DC (direct current) power to standard household AC (alternating current) power. An Inverter allows you to operate household appliances and electrical equipment using the power produced by a car, truck or boat battery or renewable energy sources...

Special algorithms make ac induction motors respond like variable-speed dc motors for fast PID control. The rotating speed of ac induction motors is determined by the frequency of ac applied to the stator, not the applied voltage. However, stator voltage must also drop to prevent excessive current...

A PICDEM TM MC demo board was used to develop, test and debug the motor control code. The PICDEM MC has a single-phase diode bridge rectifier, converting AC input to DC and a power capacitor bank that keeps a stable DC bus. A 3-phase IGBT-based inverter bridge is used to control the output voltage...

...than the PIC18F452 or PIC16F7X7. Practically speaking, control of a 3-phase AC induction motor requires pulse-width modulated control of the six switches of a 3-phase inverter bridge connected to the motor's stator windings (Figure 1). The six switches form 3 pairs of "half-bridges", which can...

ERG Introduces Inverter for One-CCFL Backlights Endicott, New York, January 24 - Endicott Research Group (ERG), Inc., has introduced its economical 8D Class low-profile dc-ac inverter for CCFL backlights for LCDs in a range of applications, including those requiring high-volume production...

...flows into the drive, and is manifested as increased DC bus voltage in the inverter....

A Ring Generator (RG) is an electronic power device used in the telecom industry to generate the ringing signal for telephones. It is a DC/AC inverter that accepts a usual DC input voltage of 48V and produces an output AC voltage from 120 to 300V peak-to-peak. The output frequency range is from...

European GSM providers that expand their activities to African countries, usually face problems when it comes to power supply the GSM Rx-Tx cellular system. To resolve the problem they use APS systems that are 20' containers with battery-arrays and dc-ac inverters stored inside. The batteries may...

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