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57 Threads found on Dimmer Lamp
hi i am using 16f676 with assembly language. i want to make PWM based lamp dimmer. for this purpose, i have to use 2 interrupts. external int and timer 1 interrupt. can i use both? when external interrupt will wake, timer1 will start, make a port hi. when it will turns off by overflowing, will make the port low. and will wait next external in
This is a very simple dimmer with a triac output (phase control). It uses timer0 to do the timing. The code is written in mikroPascal. The control part (here a P12F629) is competely isolated from the 230V mains supply: - the zero crossing detector contains an optocoupler (4N25 or similar), - the drive of the triac also conta
Look at "lamp dimmer" circuits on the internet.These circuits are used to dim the lamp light by decreasing the voltage accross the lamp.There are also dimming IC circuits for this purpose.ICs are better in terms of wide range voltage adjustment.
How you are going to control the dimmer driver?
If an incandescent lamp burns out, a high short circuit current might flow. Triac dimmers that are not protected by a built-in fuse can be damaged in this situation. Flickering of incandescent lamp can indicate a defective triac control circuit. LED drivers aren't necessarily suited for dimmer operation. - - - Updated
I would like to construct a labview vi in order to send command to microcontroller (arduino) to trigger the circuits in order to modulate the intensity of halogen lamp.(using VISA serial) Could someone please advice on how to construct a labview vi. (using slider to control the intensity in labview).please refer to the below attachment. pls: LIF
This is my schematic diagram that i'm using 105434 i cannot dim the lamp correctly the lamp is flickering can anyone check my code thanks! p/s: i'm using pic16f873a the RB0 is for external interrupt for zero crossing and RC0 is for dimmer signal unsigned char FlagReg; int x; int i; int maal; int dimming
AC lamp dimmer using MOSFET PWM. circuit diagram [url=obrazki.elek
hi i want to control two 12V AC lamps using PSoC3 development kit & PSoC creator 3.0 software. i not getting how to develop a logic using PSoC creator. plz help me.
Hello Everyone! I want to understand the use of anti-parallel diodes in this circuit. I know that 555 is configured as an astable multivibrator here. 99450 What is the duty cycle variation range?
I am looking at a lamp dimmer circuit. It has an rc pi filter used to trigger a diac. I want to know why and when does the first capacitor discharge into second capacitor. The second question is how does the first capacitor fully discharge.
See this link for the
hey guys. I would like to control an exhaust fan 220 vac that will vary the speed by the reading of smoke sensor. The fan is 50Hz and only 1 speed (1 phase i suppose?) Let step a side with the sensor. The varying speed will be occurred when I turn off and on the fan in a certain time. For the switching for lamp dimmer or fan controller it pop
I want to dimmer a lamp (40 or 50 watt) with ne555 with p channel But p channel mosfet is I am going to try with IR2103 and IRFZ44.. IRFZ44 like p channel with IR2103 Do you think the circuit is true?Please help me. And I have only 12v
I cannot read it and I don't understand. Is there any other link in English maybe? Use Google to translate it:
- - Updated - - - #include //triac light dimmer #define _XTAL_FREQ 20000000 #define TRIAC1 RB3 #define UP RB7 #define DWN RB6 #define MAX_TIM
hi when the user enters a specific rmp for the motor on GUI, the lamp must be dimmed to 65%. thank-you :-)
The most ancient speed controls used an L-pad. Simple, fairly low loss, and hard to find anymore. Inductive loads can be controlled by triac / SCR dimmer styles but there is more voltage applied at the current-zero-crossing which the design has to accommodate (lamp dimmers have it easy). This is really just component selection (but you (...)
Most economic method is phase angle control ("dimmer") at the primary, using a dimmer circuit designed for 400 Hz and transformer load. At the secondary, MOSFET solid state relays can be used for phase angle control, triac voltage drop would be most likely too high.
Simple voltage to replace potentiometer control. More details here: Circuit PWM dimmer/Motor Speed Controller Schematics | Electronic Circuits

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