本文提出了一種預測IC熱性能的方法。這些信息對于汽車及其它高溫環(huán)境下使用的PMIC (電源管理IC)尤為有用。通過分析熱性能,我們設計了一種數學模型用于仿真芯片內部的瞬態(tài)溫度。我們引入了關于熱性能的物理定律,并
過去,由于被認為具有難以控制、不易讀取、易于老化和溫度要求嚴格等特點,電容傳感器很少用于汽車電子之中。但另一方面,它們也具有生產成本較低、外形適應簡單、功耗低等特性,從而推動了它們的應用。如今,一種新型測量
發(fā)光二極管驅逐艦(霹靂游俠燈)電路-LED Chaser (Knight Rider lights)I don't know why, but people like blinking lights. You see LED chasers everywhere, in TV shows (Knight Rider), movies, and store window
12Vdc的熒光燈驅動電路-12VDC Fluorescent Lamp DriverA number of people have been unable to find the transformer needed for the Black Light project, so I looked around to see if I could find a fluoresce
LED或燈序電路--LEDs or Lamps SequencerParts: R1______________1K5 1/4W Resistor R2____________680R 1/4W Resistor (Optional, see text)C1_____________47΅F 25V Electrolytic CapacitorD1_________
溫控風扇電路--Temperature-controlled FanGradually increases speed as temperature increases Widely adjustable temperature range Parts: P1_____________22K Linear Potentiometer (See Notes)R1_________
黑暗激活LED或燈閃光電路--Dark-activated LED or Lamp FlasherSimple photo-sensitive circuit 3V battery supplyParts: R1_________________Photo resistor (any type) R2________________100K 1/2W Trimmer C
亮度控制小燈電路--Brightness Control for small LampsSwitching operated 1.5V bulbs Portable unit, 3V battery supply Parts: P1________________470K Linear PotentiometerR1_________________10K 1/4W R
衰落發(fā)光二極管電路--Fading LEDsTwo strips of LEDs fading in a complementary manner9V Battery-operated portable unit Parts: R1,R2_______________4K7 1/4W Resistors R3_________________22K 1/4W Resi
舞蹈發(fā)光二極管電路--Dancing LEDsParts: R1_____________10K 1/4W Resistor R2,R3__________47K 1/4W Resistors R4______________1K 1/4W Resistor R5,R6,R7______100K 1/4W Resistors R8____________8