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  • LED Flasher 2-Transistors

    2017-02-02 18:19:4062

    The following is LED Flasher circuit which use 2 transistors for LED switching. The circuit works similar to flip-flop operation. Components List: R1 =...

  • Four-way flashing light string circuit ( 5 ) ( 5G169 )

    2017-02-02 18:06:5260

    As shown in the figure, it is a four-way flashing light string controller with 5G169 light controlled ASIC produced by Shanghai Components factory 5. I...

  • Halloween Flashing-eyes Badge (BC557)

    2017-02-02 17:54:5862

    Two-LED-eyes follow the rhythm of music or speech Circuit diagram: Parts: R1______________10K 1/4W ResistorR2_______________1M 1/4W ResistorR3_________...

  • _12_V_flash_memory_programming_supply

    2017-02-02 17:51:1160

    Figure 7-16 shows a MAX734 connected as a flash-memory programming supply. Typical efficiency is 85%. The IC also has a logic-controlled shutdown pin t...

  • Quick 1.5V flashing circuit diagram

    2017-02-02 17:35:5162

    There is an increased 1.5kΩ resistor connected between pin 4 and pin 8 of National's LM3909 IC, and it makes the flashing rate be 2 times quicker than...

  • Slave Flash Trigger(TIC126D)

    2017-02-02 17:10:3964

    This article briefly describes the Slave Flash Trigger (TIC126D). This principle is easy to understand, but also very practical. Depth understanding of...

  • ADP1649 1A LED Flash Driver

    2017-02-02 16:58:5162

    The ADP1649 is a very compact, highly efficient, single white LED flash driver for high resolution camera phones that improves picture and video qualit...

  • Flashing Neons (NE-51 / NE-2) (AT24C16)

    2017-02-02 16:57:1761

    This article describes the Flashing Neons (NE-51 / NE-2) (AT24C16). The principle is very simple, very practical. The circuit components can help you u...

  • Flash_memory_yorogramming_module_120_mA

    2017-02-02 16:30:1962

    Figure 7-23 shows a MAX1732 connected as a flash-memory programming module. This function is similar to that performed by the circuit of Fig. 7-16, but...

  • Using LPC2000 flash ISP utility to program LPC2148

    2017-02-02 16:28:4177

    As I earlier was writing about my home made ARM7-Base development board for LPC2148 It is time to write few words on how to use LPC2000 flash ISP utili...

  • Time Delay Flash Trigger Circuit Circuit

    2017-02-02 16:21:2361

    The circuit is built around a single 4093 quad 2-input NAND Schmitt trigger. Two gates from that quad package (Ul-a and Ul-b) are configured as a set-r...

  • FLASH_METER

    2017-02-02 15:57:3361

    Insulated-gate, field-effect transistor (IGFET), Q2 and silicon photo cell Z1 form the heart of this circuit. Transformer T1 is an audio-output type, b...

  • ALARM_DRIVEN_FLASHER

    2017-02-02 15:49:3262

    Simple two-transistor flasher circuit for annunciator system is activated by alarm. Operator acknowledges alarm condition by depressing SA, which chang...

  • Flash light control device composed of silicon photocell

    2017-02-02 15:41:3861

    As shown in the figure, divider circuit is made of resistor R, optoelectronics LR, potentiometer W1 and W2. When there is no light at night, the LR res...

  • XC3S200 Platform Flash In-System Programmable Configuration

    2017-02-02 14:30:4961

    The Spartan-3 family of Field-Programmable Gate Arrays is specifically designed to meet the needs of high volume, cost-sensitive consumer electronic ap...

  • FLASHINGLED_CONTROLLER

    2017-02-02 14:17:1260

    The LED with integrated flasher is connected in series with the base-emitter junction of transistor T1. Thus, the load connected to K2 is switched on a...

  • Super_LED_Flasher

    2017-02-02 13:58:0263

    The super LED flasher is actually two complete LED flasher circuits on one circuit on one circuit board. The first LED flasher is made up of IC1 and LE...

  • RECHARGEABLE_LED_FLASHLIGHT

    2017-02-02 13:38:1561

    This flashlight is useful for applications where night vision and/or darkness adaptation must be maintained. It uses an HLMP8150 T4 LED with a waveleng...

  • RED_GREEN_LED_FLASHER

    2017-02-02 12:28:1361

    One section of LM324 quad opamp is connected as squarewave generator giving about 1 flash per second for each LED. Series resistors for LEDs have diffe...

  • Low Current Flasher circuit

    2017-02-02 12:08:5362

    This is a low current flasher consumes only a few Micro amperes current and lights a high bright LED day and night for more than one year. This can be ...

  • FLASHING INDICATORS Circuit

    2017-02-02 11:40:0761

    Need to flash turn indicators using a 555 and a single 20 amp relay. Here is our suggestion. The timing resistor needs to be selected for the appropria...

  • Trigger_switch_flasher

    2017-02-02 11:10:3060

    Trigger switch flasher. The flasher circuit is activated whenever pushbutton switch S1 is pressed. The circuit is a two-stage direct-coupled amplifier ...

  • Flashing programs to STM32. Embedded Bootloader

    2017-02-02 10:56:4761

    There has been several requests among users to explain more about loading programs in to flash memory of STM32 microcontrollers. This of course is a wi...

  • Cmos-flasher

    2017-02-02 10:49:4162

    Uses a low cost CMOS IC to tum four LEDs on and off at a rate that is set by the values of R1, R2, Cl, and C2. The pulse rate for the component values ...

  • The phone flasher

    2017-02-02 10:31:1560

    E.g 14 the phone flasherThe phone ring voltage makes the Neon bulb conducting, and the photocoupler U triggers SCR conducting and the bulb is glowing, ...

  • 1_CPS_FLASHER

    2017-02-02 10:29:1061

    When one scs triggers on, 0.2-mid commutating capacitor turns off other scs and charges its gate capacitor to negative potential. At point in charging ...

  • Three-way flashing light string circuit (4)

    2017-02-02 10:20:5867

    As shown in the figure, it is a three-way flashing light string controller with novel jumping, it can make light string be lit one by one and extinguis...

  • Automobile Steering Flasher (1)

    2017-02-02 10:12:2662

    S is the steering switch, and EL1 is left frontturn lamp, EL2 is left rear turn lamp, EL3 is right front turn lamp while EL4 is right rear turn lamp. G...

  • Working of Flash Memory

    2017-02-02 10:04:3760

    Flash Memory We use our computer hard disk to store all our files including documents, photos, PDFs, MP3s and so on. But, there are cases where you wil...

  • LOW_CURRENT_FLASHER

    2017-02-02 10:01:5260

    Q1 is operated in inverted configuration for lower leakage current. Typical on time is 0.2 sec and off lime 0.8 sec. Q1 is 2N132 and Q2 is 2N1374. Can ...

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