INTELLIGENT MULTI-LAMP LIGHTING DEVICE WITH HIGH-PRESSURE SODIUM LAMPS USING ONE POWER SUPPLY Russian patent published in 2024 - IPC H05B41/288 A01G9/20 

FIELD: lighting systems.

SUBSTANCE: invention relates to lighting systems and can be used at least in agriculture for additional illumination of crops with artificial light of high-pressure sodium lamps (HPSL) in greenhouses. Intelligent multi-lamp lighting device with high-pressure sodium lamps using one power supply comprises a lamp with high-pressure sodium lamps. All lamps with HPSL of low power are connected to one power source enclosed in a housing from aluminium profile, and are removed from it at distance from 1 to 15 meters by means of power wires. Each lamp consists of series-connected current sensor, half-bridge inverter and lamp ignition device, the first and second outputs of which are connected to corresponding HPSL outputs. First inputs of the current sensors are combined and are the inputs of the lamps; second outputs of current sensors are outputs of lamps. Power supply includes an output current limiter, the output of which is the output of the power supply and is connected to the input of the lamps. Output of the power factor corrector is connected to the first input of the output current limiter, the second input of which is connected to the second output of the control unit with a microprocessor, wherein outputs of each lamp are connected to the corresponding inputs of the control unit with a microprocessor.

EFFECT: providing compactness and functionality of the design of the device for the possibility of placing the lamp at a short distance from ground (2–3 meters), while improving uniformity of illumination without the risk of damaging the illuminated objects, and improving safety of the device.

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