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LED Driver

Design Boost-Buck Converter using HV9930 

September 2nd, 2009

If you consider in designing a LED lamp driver using a low noise boost buck topology to control the application, you may use the HV9930 from Supertex. It can be applied to RGB backlight applications, battery powered LED lamps, and other low voltage AC/DC or DC/DC LED drivers. And below is the circuit diagram of Boost-Buck Converter using the HV9930. [...]

TLE4241GM LED Driver Pin Configuration Diagram 

July 24th, 2012

Previously post about TLE4241GM Datasheet, the herein schematic illustrates TLE4241GM pin configuration diagram. As also said in the previously post above the main features of this device are adjustable output current, the high/low current switch and the provided PWM input; this will give this LED Driver can be used in many applications of LED. [...]

LM3909 Typical 1.5V Flasher Schematic Diagram and Datasheet 

September 1st, 2010

For full read on LM3909 Typical 1.5V Flasher Schematic Diagram you may download the LM3909 datasheet here (source: national.com) [...]

TLE4241GM LED Driver Typical Application Circuit Schematic 

July 18th, 2012

According to the TLE4241GM datasheet, the IC may produce an adjustable output current through any other device such as SET, PWM, reference resistor in an independently from load and supply voltages. Its adjustable output current make this device can be applied in a broad range of LED applications. [...]

AT9933 Datasheet, the Automotive Hysteretic Boost-Buck LED Driver IC 

August 22nd, 2009

AT9933 LED driver IC Typical Application Circuit [...]

TDA5140A Brushless DC Motor Circuit and Datasheet 

August 17th, 2012

Brushless DC Motor Circuit can be completed in TDA5140A Datasheet. [...]

Adaptable Digital Tachometer Circuit Diagram and Datasheet 

August 15th, 2012

A: Apply momentary ground to reset hours to zero.
B: When using the MTH6 with inductive loads, we recommend installing a suppression diode across all coils.
C: Terminals 4 and 8 may be grounded on negative ground power supply.
D: Alternator must be equipped with a tach terminal (auxiliary AC terminal).
E: Connecting full battery potential to terminal 9 can cause damage
to the switchgage. Shutdown circuit is rated for 300 mA continuous. Circuit grounds out at set point. [...]

Great and Rapid Laser Driver Circuit for Multi-Function Integrated Laser Driver 

August 14th, 2012

The laser driver circuit diagram shows the schematic of an IC-NZN application, an all-purpose laser driver circuit. It operates from 3.3 to 5.5 V and can drive N, M, and P-type laser diodes with or without monitor diode. The latest generation of all-purpose integrated laser driver solutions supports switching frequencies up to 155 MHz and laser currents up to 300 mA. [...]

LM348 Sine Wave Generator Circuit Diagram 

August 10th, 2012

By controlling the size of the resistor in one of the four filters the frequency could be adjusted. In order to get the correct size signal, the we must use a potentiometer to be placed to the one of the resistors while also measuring oscilloscope’s output. This will be used to know what size of resistor should be worked at 60Hz. [...]

NCP1034 DC to DC Buck Converter Circuit Diagram and Datasheet 

August 8th, 2012

NCP1034 known to be high voltage, high power and high efficiency buck converter. A voltage mode PWM controller for a high synchronous buck. According to the datasheet, this buck converter features low output voltage ripple, ceramic capacitors, over current protection, and under voltage protection. [...]

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