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MBP1100 Series Single-Phase AC Variable Frequency Power Supply

Key words:

MBP1100 series single-phase AC variable frequency power supply

Classification:

MBP1100 series single-phase AC variable frequency power supply

  • Product Description

  • Product Overview

    A variable-frequency power supply is an electrical energy control device designed to meet user requirements. It not only simulates the grid parameters of various countries but also provides export‑oriented electrical equipment manufacturers with a clean, reliable sinusoidal output—characterized by low harmonic distortion and high stability in both voltage and frequency—throughout design, development, production, and testing. Most small and medium‑sized variable-frequency power supplies employ sinusoidal pulse‑width modulation (SPWM), which consists of circuits such as AC–DC–AC conversion. These power supplies offer notable advantages, including significant energy savings, a wide adjustment range, low noise, high reliability, and straightforward maintenance.

    This variable-frequency power supply is microprocessor‑based and implemented using PWM technology, with an IGBT module as the active switching device. It incorporates digital frequency division, D/A conversion, instantaneous value feedback, sinusoidal pulse width modulation, feedback control, a display unit, logic control, and protection circuitry. Featuring strong load adaptability, high‑quality output waveforms, simple operation, compact size, and light weight, it also provides comprehensive protection against short circuits, overcurrent, overload, overheating, and overvoltage, ensuring reliable operation.

    Introduction to the Unit Circuit

    Reference Frequency Generation Circuit Sine Wave Generation Circuit

    Triangle Wave Generation Circuit PWM Wave Synthesis Circuit

    Voltage negative feedback circuit Current feedback circuit

    Voltage, current, frequency, and power display circuit; soft-start circuit

    Fault interruption handling circuit Fan speed control circuit

    Overload detection circuit Overvoltage detection circuit

    Over-temperature detection circuit Over-current detection circuit

    Short-circuit detection circuit Bus voltage detection circuit

     

    Product Features

     

    High-precision microcontroller (analog) control, with analog control of output voltage and frequency, offering flexible and convenient operation.

    High-frequency PWM design delivers a stable, pure sine wave; power is driven and output by IGBTs, resulting in a compact footprint and low noise.

    Smart fan control adjusts the fan speed according to the power level.

    It features overvoltage, overcurrent, overheating, short-circuit, and overload protection, as well as warning functions.

    Voltage, current, frequency, power, and power factor are all displayed on an LED digital display, offering simple, easy-to-read readings with high resolution.

    Output voltage is adjustable from 1 to 300 V.

    Output current limit setting: 0–Max

    Output frequency set to 40 Hz–75 Hz

    The programmable operation features nine sets, each of which allows you to set the operating voltage, frequency, and run time, while also retaining the current programming data.

    Multiple communication control interfaces, with RS232/RS485 interfaces as standard.

    Angle start setting adjustable from 0° to 360°.

    Technical Specifications

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