LED照明的恒流控制技术与恒温控技术对比、分析表：
The contrast and analysis table of constant current and constant temperature controlling technology in LED lighting:
项目 Items | 恒流控制技术 Constant Current Technology | 恒温控制技术
Constant Temperature Technology |
控制原理 Controlling Principles | 采用恒流器件，保障LED灯具的恒功率运行 Constant current device to ensure LED lightings running in constant power | 采用温控器件，保障LED芯片的恒温运行 Constant temperature device to ensure LED lightings running in constant temperature |
控制过程 Controlling Process | 整流 逆变 变压 整流 恒流 LED低压模组
Rectification---inversion----transformation---rectification---constant current--LED low voltage module | 整流 温控 LED高压模组（融入控制电源）
Rectification--temperature controlling--LED high voltage module (Integrated into power control system) |
控制器构成 Controller Constitutes
| 整流桥，逆变器，高频变压器，整流桥，恒流源，电解电容 Rectifier, Inverter, High-frequency transformer, Inverter, Constant Current power, Electrolytic capacitor | LED高压模组（L）
PTC温控器组（P）
RTP 门限电阻（R） LED High Voltage Module(L) PTC Thermostat Set (P)
RTC Threshold Resistance (R) |
控制器功耗 Controller Power Dissipation | 8～15% | 1～15% |
控制器寿命Controller Service time | 模组寿命（1～3年）
| >LED模组寿命（5～10年）
>LED Module Service Time
(5-10 years) |
灯具特点 LED Lightings Features | 输出功率恒定，无50Hz频闪，有较强高频电磁波输出。灯具温度受环境温度，对流情况变化等影响较大。使用环境要求较高。 Constant output power; no 50 Hz frequency flash; strong high-frequency electromagnetic wave. Temperaturechanges with environment. Convection situation can be greatly influenced.Requiring high environmental standards.
| 在额定电压之下，输出功率随之下降，可调光。有50Hz频闪，无高频电磁波。灯具温度不受电压波动，环境温度，对流情况变化等影响。
Output power declines in constant voltage.Dimmable. 50 Hz frequency flash; no high-frequency electromagnetic wave.Power changing, environmental temperature and convection situation don’t effect lightings temperature.
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