A New Approach to Design a More Efficient Vacuum Cleaner Motor Drive Inverter Using EPC9176 Evaluation Boards
Applying new design approaches to popular household appliances allows all users to contribute to reducing energy usage in everyday activities. EPC just released a new demo board, the EPC9176, a three-phase BLDC motor drive inverter targeted for more efficient, high-performance vacuum cleaner motors.
The EPC9176 uses six of the QFN-packaged GaN ICs, the EPC23102, giving the designers a variety of GaN advantages, such as zero reverse recovery, high-frequency operation, smaller footprint, and lower switching losses, to optimize the performance of the circuit. Thanks to the high power density and the high electrical conductivity of GaN, the EPC9176 board delivers up to 18 ARMS on each leg and supports PWM switching frequencies up to 250kHz under natural convection passive heatsink and by keeping the temperature rise below 50℃. Increasing performance of the motor-drive system in terms of quality of the current output waveforms, lesser torque oscillations, and total system efficiency are achieved.
The inverter board includes all the functional circuits required to support a complete inverter for vacuum cleaner motor drives as described in the following:
Three-phase inverter based on six EPC23102 eGaN ICs
DC link capacitors
Regulated auxiliary power supplies
Voltage, current, and temperature sensors with conditioning circuits
Protection functions
Pictures of the inverter board are displayed in Figure 1.
Figure 1: Photo overview of the EPC9176 board highlighting the main sections
EPC9176 can be used for either sensorless motor control or sensored motor control.
Demo boards such as the EPC9176 offer engineers a platform to jump-start their design with a proven and reliable reference design, allowing them to focus on differentiating features and get to market quickly.
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本文由Vicky转载自EPC News,原文标题为:A New Approach to Design a More Efficient Vacuum Cleaner Motor Drive Inverter Using EPC9176 Evaluation Boards,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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