Linear dimming intelligent digital power supply

Abstract

The invention relates to a linear dimming intelligent digital power supply. The linear dimming intelligent digital power supply is characterized by comprising a main power loop unit, a dimming controlunit and an electric energy information acquisition unit, wherein main power loop unit is provided with an input end and an output end, the linear dimming control unit comprises a PWM output adjustment unit, the dimming control unit is used for adjusting an output power of the main power loop by controlling a PWM output duty ratio, receiving the PWM output duty ratio set by an external control signal and correcting the PWM output duty ratio set by the external control signal, the electric energy information acquisition unit is used for acquiring electric energy data of the input end and the output end of the main power loop, and the electric energy data comprises voltage and current data.

Description

technical field [0001] The invention relates to a linear dimming intelligent digital power supply Background technique [0002] The power supply is a commonly used electrical control device, but the power supply in the prior art has the following problems: 1. At present, the technical application of industrial lighting drives such as electronic ballasts, drive power supplies, switching power supplies, and industrial transformers are all based on Analog dimming technology, thyristor dimming, segmental dimming technology, these technologies are easily affected by load changes and cannot be well dimmed or cannot be linearly dimmed well and accurately, and cannot be linearly dimmed . 2. At present, the driving power supply and switching power supply explain the static dimming technology, that is, it will not realize linear adjustment due to load changes, environmental changes, and user habit changes. 3. At present, both the driving power supply and the switching power supply h...

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Problems solved by technology

[0002] The power supply is a commonly used electrical control device, but the power supply in the prior art has the following problems: 1. At present, the technical application of industrial lighting drives such as electronic ballasts, drive power supplies, switching power supplies, and industrial transformers are all based on Analog dimming technology, thyristor dimming, segmental dimming technology, these technologies are easily affected by load changes and cannot be well dimmed or cannot be linearly dimmed well and accurately, and cannot be linearly dimmed

3. At present, both the driving power supply and the switching power supply have their own transformer secondary power supply technology. The defect of this purpose is that the whole device is in the standby state, and the key life software such as the electrolytic capacitor is always in the working state, which greatly reduces the life of the whole device.

4. At present, the driving power supply and switching power supply do not have power information collection and analysis and processing units, which will cause linear adjustment according to environmental changes.

5. At present, the driving power supply and switching power supply all use the relay switching function to realize the switching function of the main circuit. The relay is an inductive element. When it is turned on, the peak value is high, and the stress requirement before rectification is increased, and the switching times and response time of the relay are not timely. Disadvantages, greatly reducing the service life of the drive power supply and responding to the timeliness of load power supply

6. The control method is inflexible in different seasons and in special weather. Scattered lamps and wide geographical distribution bring inconvenience to control management, unintuitive control interface, serious energy waste, high fault inspection costs, and maintenance and maintenance trouble

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