PROBLEM TO BE SOLVED: To provide a current limiting circuit for LEDs which solved problems by performing current limitation so that a load current value comes within a predetermined range when an error occurs, an LED module having this current limiting circuit, and an LED lighting device.OTAKE ...
The circuit arrangement allows current limiting in a switching transistor during a power on and/or power off cycle, but... CD Driscoll,EM Najm,M Waechter - US 被引量: 59发表: 1987年 Design of a New Thermal shut Down Protection Circuit for LED Driver IC Applications 1μm CMOS LED . ...
current limiting 限流 limiting current 极限电流, 限制电流 limiting circuit 限幅电路 相似单词 limiting a. 1.限制(性)的 current a. 1.现时的,当前的;现行的 2.通用的,流行的 n. 1.[C]流动,水流,气流 2.[C,U]电流 3.[C]趋势,倾向,潮流 Current a. 当前的 n. 涌流,趋势,流 a. 流通...
PURPOSE: To provide a current-limiting circuit for limiting the base current of a control transistor in which can reduce sufficiently the peak-surpassing current in a circuit for controlling output voltage by the control transistor. ;CONSTITUTION: A detection signal corresponding to the base current ...
1Why Current Limiting is Crucial for LEDs 1.1Calculating the Current Limiter Resistor 1.2Application Circuits 1.2.130 watt Constant Current LED Driver Circuit 2Restricting LED Current using Transistors 2.1PNP Version of the Above Circuit 2.2How to Calculate the resistors ...
“60W replacement” type of LED bulb uses a built-in LED driver circuit to convert AC mains to a suitable DC voltage to power its LEDs. Using dedicated power supplies also allows the connection of LEDs or LED strings in parallel for distributed lighting systems but nor...
CURRENT LIMITING CIRCUIT, POWER-SUPPLY CIRCUIT, AND CURRENT LIMITING METHOD 来自 百度文库 喜欢 0 阅读量: 14 申请(专利)号: JP20050354672 申请日期: 2005-12-08 公开/公告号: JP2007159344A 公开/公告日期: 2007-06-21 申请(专利权)人: NEC COMPUTERTECHNO LTD 发明人:...
Circuit for limiting the current supplied by a power supply unit for electrical equipment with a resistive- capacitive load, particularly ISDN communication equipment, comprising a variable electronic resistance 18 driven by a control circuit 15 which varies its value as a function of the difference ...
However, dc circuit breaker (DCCB) with large capacity and fast breaking speed is still under development. Therefore, fault current limitation is vital for the multiterminal VSC-HV DC system. This paper proposes a simple and easily applied hybrid current-limiting circuit (HCLC) at dc side, ...
Table 2. Parameters of the Circuit in Figure 1 The control of LED current is achieved by applying voltage to the control terminal of the Figure 1 circuit (Figure 2). Figure 3 shows the efficiency for this control technique. Figure 2. LED current vs. control voltage for the circuit in Fig...