hid's intelligent lighting method, hid electronic ballast and hid lighting system

Abstract

The application discloses an intelligent high-intensity discharge (HID) lamp lighting method. The method comprises the following steps: detecting a power voltage (Vin), a load voltage (Vlamp) and a load current (Ilamp); determining the type and the state of the load according to the detection result; and according to the type and the state of the load, outputting a corresponding control signal to control the load. In addition, the application also discloses an HID electronic ballast and an HID illumination system, according to the scheme, an HID lamp that is turned off due to grid voltage fluctuation is determined as the thermolamp; after the cooling of the HID lamp, the HID lamp is turned on again, thereby preventing the hot HID lamp from being damaged due to repeated lighting triggering and thus prolonging the service life of the HID lamp. When the load is switched to another HID lamp, the open-circuit protection is identified and the HID lamp is lighted after the first fixed time interval, thereby realizing rapid HID lighting.

Description

technical field [0001] The present application relates to the fields of electronic ballasts and lighting, in particular to an HID intelligent lighting method, an HID electronic ballast and a HID lighting system. Background technique [0002] High-pressure discharge lamps (High Intensity Discharge, HID) are more and more popular because of their advantages such as high luminous efficiency, good color rendering, and long life. Electronic ballasts equipped with HID are more and more widely used due to their superior performance such as low energy consumption, high efficiency, and small size. [0003] see figure 1 , figure 1 It is a schematic diagram of the topology structure of the prior art HID electronic ballast. The HID ballast includes: a rectification and filtering module 110 , a power factor correction (Power Factor Correction, PFC) module 120 , a switching power supply module 130 , a microcontroller module 140 , a full-bridge inverter module 150 , and a resonant boost...

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Problems solved by technology

[0006] When the HID light is working normally, due to grid voltage fluctuations (such as power-off for a short period of time and then power on, grid voltage is too low or too high, etc.) after the HID light goes out, when the power supply is restored, it cannot be recognized that the HID light is still in a hot state, so After every 60 seconds, the ignition high voltage is output again; however, the HID lamp in the hot state needs a higher ignition voltage to break down the gas in the lamp to emit light, and the normal trigger voltage is not enough to light it again, so repeated ignition, hot HID The electrode will be damaged by repeated impact of ignition high voltage, thereby reducing its service life

[0007] In addition, this kind of fixed interval pulse triggers ignition, because the interval is fixed at 60 seconds, when the load is switched to another HID lamp, it still needs to wait 60 seconds for the output of the next ignition high voltage to be lit, which cannot meet the fast Requirements for lighting

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