18570075. POWER CONVERSION DEVICE simplified abstract (Mitsubishi Electric Corporation)
Contents
POWER CONVERSION DEVICE
Organization Name
Mitsubishi Electric Corporation
Inventor(s)
POWER CONVERSION DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18570075 titled 'POWER CONVERSION DEVICE
The power conversion device described in the abstract consists of various components such as a rectification circuit, a leg circuit with upper and lower legs composed of semiconductor elements, a balance resistor, charge/discharge capacitors, a smoothing capacitor, and an inrush preventing circuit.
- Rectification circuit to convert input voltage from AC power supply.
- Leg circuit with upper and lower legs made of semiconductor elements connected in series.
- Balance resistor connected in parallel to the semiconductor elements.
- Charge/discharge capacitors between the upper and lower leg connection points.
- Smoothing capacitor at the output of the leg circuit.
- Inrush preventing circuit with a current limiting resistor between the AC power supply and the leg circuit.
Potential Applications: - Power supply units - Renewable energy systems - Electric vehicles - Industrial machinery - Uninterruptible power supplies
Problems Solved: - Efficient power conversion - Voltage regulation - Inrush current protection - Improved power quality - Enhanced system reliability
Benefits: - Increased energy efficiency - Enhanced system performance - Reduced maintenance costs - Improved system longevity - Enhanced safety features
Commercial Applications: Title: "Advanced Power Conversion Device for Enhanced Efficiency" This technology can be utilized in various industries such as renewable energy, electric vehicles, and industrial automation, offering improved power conversion efficiency and reliability.
Questions about the technology: 1. How does the inrush preventing circuit enhance the overall performance of the power conversion device? - The inrush preventing circuit helps to limit the initial surge of current when the device is powered on, protecting the components and ensuring stable operation. 2. What are the key advantages of using charge/discharge capacitors in the power conversion device? - The charge/discharge capacitors help to stabilize the voltage levels and improve the overall efficiency of the device.
Original Abstract Submitted
This power conversion device includes a rectification circuit which rectifies input voltage from the AC power supply; a leg circuit having an upper leg composed of semiconductor elements connected in series and a lower leg composed of semiconductor elements connected in series, the upper leg and the lower leg being connected in series, at least the semiconductor elements in the lower leg being switching elements; a balance resistor connected in parallel to the semiconductor elements; at least one charge/discharge capacitor connected between a connection point of the semiconductor elements in the upper leg and a connection point of the semiconductor elements in the lower leg; a smoothing capacitor connected to an output of the leg circuit; and an inrush preventing circuit provided between the AC power supply and the leg circuit, and including a current limiting resistor.
