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20 led VU meter transistor

Catalog Datasheet MFG & Type PDF Document Tags

LM3916 VU METER

Abstract: lm3914, lm3915, lm3916 , LCDs or vacuum fluorescent displays, providing an electronic version of the popular VU meter. One pin , and the logarithmic LM3915. Features n n n n n n n n n n n n Fast responding electronic VU meter , Typical Applications 0V to 10V VU Meter DS007971-1 Notes: Capacitor C1 is required if leads to the , output of C2 low, which shuts off output transistor Q2, extinguishing LED #10. VLED is sensed via the 20k , higher device are not used. Examples include the high resolution VU meter and the expanded range VU meter
National Semiconductor
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LM3916 VU METER lm3914, lm3915, lm3916 20 led VU meter transistor lm3916 12v AC to DC CIRCUIT DIAGRAM for led tube lights IC lm3916 LM3916 LM3916N-1 0804/08032000/NATL/08012000/LM3916

VU meter CIRCUITS

Abstract: LM3916 VU METER , LCDs or vacuum fluorescent displays, providing an electronic version of the popular VU meter. One pin , and the logarithmic LM3915. Features n n n n n n n n n n n n Fast responding electronic VU meter , Typical Applications 0V to 10V VU Meter DS007971-1 Notes: Capacitor C1 is required if leads to the , output of C2 low, which shuts off output transistor Q2, extinguishing LED #10. VLED is sensed via the 20k , higher device are not used. Examples include the high resolution VU meter and the expanded range VU meter
National Semiconductor
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VU meter CIRCUITS led driver 12v only circuit diagram VU METER LED BAR" driver graph VU METER 32 led 20 led VU meter common cathode in audio lm3914 spice LM3914

VU meter CIRCUITS

Abstract: ECG1649 of the popular VU meter. One pin changes the display from a bar graph to a moving dot display. LED , low, which shuts off output transistor Q2, extinguishing LED #10. Vled Is sensed via the 20 k , Level Ind. Driver, 10 Step Features â'¢ Fast responding electronic VU meter â'¢ Drives LEDs, LCDs, or , ) VLED = 5 V, ILED=2 mA VLED = 5 v' 'LED = 20 mA 0.12 1.2 0.4 3 mA mA LED Current Regulation 2 V
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ECG1549 ECG1649 vu meter Peak LED level meter driver ic 50 led VU meter LED VU METER ECG519

LM3914 applications

Abstract: IC lm3915 difference between LED #11 and LED #12 Extended Range VU Meter (Dot Mode) DS007971-22 Typical , an electronic version of the popular VU meter. One pin changes the display from a bar graph to a , responding electronic VU meter Drivers LEDs, LCDs, or vacuum fluorescents Bar or dot display mode , LM3916 Dot/Bar Display Driver May 1999 Typical Applications 0V to 10V VU Meter DS007971 , ILED = 2.0 mA, IL(REF) = 0.4 mA Output Leakage, Each Collector 7 V Dot Mode (Note 5) LED
National Semiconductor
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LM3914 applications IC lm3915 VU peak hold simple PEAK DETECTOR LM3916N LM3915 function

32 led VU-METER

Abstract: 20 led VU meter common cathode in audio dB difference between LED #11 and LED #12 Extended Range VU Meter (Dot Mode) DS007971 , an electronic version of the popular VU meter. One pin changes the display from a bar graph to a , responding electronic VU meter Drivers LEDs, LCDs, or vacuum fluorescents Bar or dot display mode , Meter DS007971-1 Notes: Capacitor C1 is required if leads to the LED supply are 6" or longer , ILED = 2.0 mA, IL(REF) = 0.4 mA Output Leakage, Each Collector 7 V Dot Mode (Note 5) LED
National Semiconductor
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32 led VU-METER lm3915 vu meter 20 led VU meter stereo VU-METER 20 led VU meter Peak level meter ic

LED MOVING DISPLAY CIRCUITS

Abstract: lm3916 vu meter Extended Range VU Meter (Dot Mode) LM3916 17 00797122 This application shows that the LED supply , www.national.com 20 Typical Applications (Continued) High Resolution VU Meter (Bar Mode) LM3916 21 , , providing an electronic version of the popular VU meter. One pin changes the display from a bar graph to a , . Features Fast responding electronic VU meter Drivers LEDs, LCDs, or vacuum fluorescents Bar or dot display , Corporation DS007971 www.national.com LM3916 Typical Applications 0V to 10V VU Meter 00797101
National Semiconductor
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LED MOVING DISPLAY CIRCUITS Anode Vacuum Fluorescent Bar Graph LF353 as precision rectifier lm3914 circuits analog vu audio meter NPN Transistor DRIVER for lm3914 SNVS762A

LED VU METER

Abstract: VU-METER an electronic version of the popular VU meter. One pin changes the display from a bar graph to a , responding electronic VU meter Drivers LEDs, LCDs, or vacuum fluorescents Bar or dot display mode , Meter 00797101 Notes: Capacitor C1 is required if leads to the LED supply are 6" or longer , = 20 mA 0.12 1.2 0.4 3 mA mA LED Current Regulation 2V VLED 17V ILED 2 mA ILED , low, which shuts off output transistor Q2, extinguishing LED #10. VLED is sensed via the 20k
National Semiconductor
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analog VU-METER simple vu audio meter THE USES OF EACH PIN OF THE IC LM3915 16 led VU meter pin diagram of LED vu meter 40 led VU-METER CSP-9-111C2 CSP-9-111S2

ECG129

Abstract: ECG1549 Features · Fast responding electronic VU meter · Drives LED s, LC D s, or vacuum fluorescents · Bar or dot , of the popular VU meter. One pin changes the display from a bar graph to a moving dot display. LED , output of C2 low, which shuts off output transistor 02, extinguishing LED #10. VLED Is sensed via the 20 , , ILED =2 mA Vled =5 V» Jled ^ o m A 2 V , drivers should have a 20 k resistor in parallel with LED No. 9 (pin 11 to V l e q ). Mode Pin Functional
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ECG1509 ECG129 45406 ecg51 ECG858M 30 led VU meter stereo 10WEND1

32 led VU-METER

Abstract: VU METER 32 led vacuum fluorescent displays, providing an electronic version of the popular VU meter. One pin changes the , and the logarithmic LM3915. Features â  Fast responding electonic VU meter â  Drivers LEDs, LCDs , Difference (Between Largest and Smallest LED Currents) VLED = 5V, ILed = 2 mA VLED = sv, ILED = 20 mA 0.12 1.2 0.4 3 mA mA LED Current Regulation 2V , '" REF LOAD - 0.2 mA_ ;c 1 1 j. s " s 2J ìì 5 10 10 20 LED SUPPLY VOLTAGE (VI TL/H/7971-2
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LED LEVEL METER DRIVER 7 dot LED LEVEL METER DRIVER IC LM3914

32 led VU-METER

Abstract: VU peak hold Applications 0V TO 10V VU Meter Note 1 Capacitor C1 is required if leads to the LED supply are 6 or , auxiliary sink current away from LED 1 D1 D2 1N914 or 1N4148 Extended Range VU Meter (Dot Mode) TL , from LED 1 High Resolution VU Meter (Dot Mode) TL H 7971 ­ 27 Typical Applications (Continued , an electronic version of the popular VU meter One pin changes the display from a bar graph to a , Features Fast responding electonic VU meter Drivers LEDs LCDs or vacuum fluorescents Y Bar or dot
National Semiconductor
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LM3915 Connection Diagrams 12v simple flasher 18 PIN DIAGRAM LM3914

20 led VU meter transistor

Abstract: VU METER 32 led scalebar level meter 5-point LED VU scale bar level meter 5-point LED linear scale bar level meter 5-point LED VU scale bar level meter 5-point LED VU scale bar level meter 5-point LED VU scale bar fevel meter 8-point LED linear scale bar level meter 12-point fluorescent display tube VU scale bar level meter 12-point fluorescent display tube VU peak hold level meter 12-point LED power scale dot/ bar level meter 12-point LED VU scale dot/ bar level meter 12-point LED power scale dot/ bar level meter 12
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BA612S ba3706 of ic 3121 10 LED VU meter BA684A ic level audio meter DD03252 BA695 BA685 BA6104 BA6124/BA6124F

BA6805A

Abstract: 20 led VU meter transistor display. Peak hold: - 7 ~ + 1 0 d B with reset and muting function VU External setting of LED current On/O , VU r , n= 300 n SDIP22 SOP22 624 BA6146 7.5 - 20 12 Bar Bar/ peak hold VU , switches for record. 697 Auto scan meter (three point LED indicator driver) Part no. BA695 , Settable Power transistor needed Direct Direct - 3.0 ~ 14.0 2.0 ~ 5.0 VSC processor Part no , Part no. Supply voltage( V) Boost circuit Bass BA3570F /FS BA3870 2 .0 -7 .2 3.0 - 7.0 25 dB max 20 dB
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BA3822LS BA1701 BA6805A BA6125 rectifier tube 577 audio spectrum analyzer led display DIP18 BA3853AFS SSOP-A24 BA3812L BA3823LS BA3824LS

50 led flasher circuit with format

Abstract: NPN Transistor DRIVER for lm3914 100k C2 2.0 1.0 C3 0.56 F 0.056 F Figure 22. Full-Wave Average Detector to VU Meter , . Extended Range VU Meter (Dot Mode) 20 Submit Documentation Feedback Product Folder Links: LM3916 , Check for Samples: LM3916 1 FEATURES Fast Responding Electronic VU Meter Drivers LEDs, LCDs, or , vacuum fluorescent displays, providing an electronic version of the popular VU meter. One pin changes the , Currents) LED Current Regulation V+ = VLED = 5V, IL(REF) = 1 mA VLED = 5V, ILED = 2 mA VLED = 5V, ILED = 20
Texas Instruments
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50 led flasher circuit with format lm3914 adjustment internal diagram of LM3915 SNVS762B ISO/TS16949

lm3916

Abstract: 100k C2 2.0 1.0 C3 0.56 F 0.056 F Figure 22. Full-Wave Average Detector to VU Meter , . Extended Range VU Meter (Dot Mode) 20 Submit Documentation Feedback Product Folder Links: LM3916 , Check for Samples: LM3916 1 FEATURES Fast Responding Electronic VU Meter Drivers LEDs, LCDs, or , vacuum fluorescent displays, providing an electronic version of the popular VU meter. One pin changes the , Currents) LED Current Regulation V+ = VLED = 5V, IL(REF) = 1 mA VLED = 5V, ILED = 2 mA VLED = 5V, ILED = 20
Texas Instruments
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Abstract: . Figure 31. Extended Range VU Meter (Dot Mode) 20 Submit Documentation Feedback Copyright  , fluorescent displays, providing an electronic version of the popular VU meter. One pin changes the display , Responding Electronic VU Meter Drivers LEDs, LCDs, or Vacuum Fluorescents Bar or Dot Display Mode , resistor should be used to limit IC power dissipation. Figure 1. 0V to 10V VU Meter 2 Submit , ) VLED = 5V, ILED = 2 mA VLED = 5V, ILED = 20 mA 0.12 1.2 0.4 3 mA mA LED Current Texas Instruments
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Abstract: . Figure 31. Extended Range VU Meter (Dot Mode) 20 Submit Documentation Feedback Copyright  , fluorescent displays, providing an electronic version of the popular VU meter. One pin changes the display , Responding Electronic VU Meter Drivers LEDs, LCDs, or Vacuum Fluorescents Bar or Dot Display Mode , dropping resistor should be used to limit IC power dissipation. Figure 1. 0V to 10V VU Meter 2 , LED Currents) VLED = 5V, ILED = 2 mA VLED = 5V, ILED = 20 mA 0.12 1.2 0.4 3 mA mA Texas Instruments
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Abstract: ¼©ï¼´ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''YD2281 LED LEVEL METER DRIVERâ'" YD2281 DESCRIPTION The YD2281 is a monolithic integrated circuit designed for dual 5-dot LED level meter drivers with a built-in rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters. FEATURES *High gain rectifying amplifier included (Gv=12.6dB); *Low radiation noise when LED turns on; *Logarithmic indicator for 5-dot LED of bar , transistor for ALC; *Minimum number of external parts required. BLOCK DIAGRAM ï¼'ï¼ ï¼'5 ï WuXi YouDa Electronics
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20 led VU meter

Abstract: LED LEVEL METER DRIVER UTC LA2284 LINEAR INTEGRATED CIRCUIT 5-DOT DUAL LED LEVEL METER DRIVER DESCRIPTION The UTC LA2284 is a monolithic integrated circuit designed for 5-dot LED level meter drivers with a built-in rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters. FEATURE *High gain rectifying amplifier included (Gv=26dB) *Low radiation noise when LED turns on *Logarithmic indicator for 5-dot LED of bar type SIP-9 *Constant current output(15mA) *Wide operating supply
Unisonic Technologies
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VU level meters VC55 5 dot LED LEVEL METER DRIVER 5-Dot Dual Led Level Meter Driver VU meter transistor QW-R113-002
Abstract: ¼©ï¼´ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''YD6884 5-DOT LED LEVEL METER DRIVER â'" YD6884 DESCRIPTION The YD6884 is a monolithic integrated circuit designed for 5-dot LED level meter drivers with a built-in rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters. FEATURES *High gain rectifying amplifier included (Gv=26dB); *Low radiation noise when LED turns on; *Logarithmic indicator for 5-dot LED , necessary diode or transistor for ALC; *Minimum number of external parts required. BLOCK DIAGRAM WuXi YouDa Electronics
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Abstract: ¼©ï¼´ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''ã''YD2284 5-DOT LED LEVEL METER DRIVER â'" YD2284 DESCRIPTION The YD2284 is a monolithic integrated circuit designed for 5-dot LED level meter drivers with a built-in rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters. FEATURES *High gain rectifying amplifier included (Gv=26dB); *Low radiation noise when LED turns on; *Logarithmic indicator for 5-dot LED , necessary diode or transistor for ALC; *Minimum number of external parts required. BLOCK DIAGRAM WuXi YouDa Electronics
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