【摘要】：主要研究了在不同電壓下3.5 W、6 500 K的AC LED光源初態(tài)和穩(wěn)態(tài)的光通量、光效等隨著電壓升高的變化情況。研究表明,隨著電壓由205 V逐漸升高到235 V,初態(tài)和穩(wěn)態(tài)下AC LED光源的電流、光通量、功率均隨電壓的升高而升高,初態(tài)下電流和光通量分別增長(zhǎng)79.3%、75.3%,穩(wěn)態(tài)下電流和光通量分別增長(zhǎng)80.28%、45.93%。初態(tài)和穩(wěn)態(tài)下光效隨電壓的升高而下降,初態(tài)和穩(wěn)態(tài)下光效分別下降18.67%、33.22%。燈點(diǎn)亮后穩(wěn)態(tài)下AC LED光源的最高溫度隨電壓的升高而升高,最高溫度升高91.80%。結(jié)果表明,電壓的變化直接影響ACLED光源的光電性能。
[Abstract]:The changes of initial and steady luminous flux and luminous efficiency of AC LED light source at different voltages of 3.5 W ~ (6 500 K) with the increase of voltage are studied in this paper. The results show that with the voltage increasing from 205V to 235V, the current, luminous flux and power of AC LED light source increase with the increase of voltage. The initial current and luminous flux increased 79.3 and 80.28 and 45.93, respectively, and the steady-state current and luminous flux increased by 80.28 and 45.93, respectively. The light efficiency of initial state and steady state decreased with the increase of voltage, and the light efficiency of initial state and steady state decreased by 18.67 and 33.22, respectively. The maximum temperature of AC LED light increases with the increase of voltage, and the maximum temperature increases 91.80 when the lamp is lit. The results show that the change of voltage directly affects the optoelectronic performance of ACLED light source.
【作者單位】： 上海應(yīng)用技術(shù)大學(xué)材料與工程學(xué)院;上海應(yīng)用技術(shù)大學(xué)理學(xué)院;浙江億米光電科技有限公司;
【分類號(hào)】：TN312.8

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