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  1. keron

    prevent live and neutral from changing.please help

    Hello Ante,                         can you please explain a  lil more?if any circuits drawing  availabe for this purpose?please help.                                      iam panning to build a mains voltage multiplier using Cockcroft-Walton  multiplier.                                        ...
  2. keron

    prevent live and neutral from changing.please help

    please see this circuit. http://www.emanator.demon.co.uk/bigclive/ozone.htm in the first part of the description about making an ioniser /ozoniser,just above the pic of close-up view showing the emitter and tube, and also the neon output level indicator. you can read like this. The...
  3. keron

    WATER LEVEL MONITOR FOR PUMPS

    thanks ante.but that is the basic .my question still remains.between output of a gate to input of other  gate pull down/up resistor needed?or just a pull down resistor at the begining of circuit will do fine?
  4. keron

    WATER LEVEL MONITOR FOR PUMPS

    hello guys ,                        you are deviating from the topic.i have used a MOV for the sparking issue.its nota problem at all.but what about my question on pulldown resistors  please explain .do i need to use them in every  input of logic gates.even in case of output of a logic gate used...
  5. keron

    help with solid state relay

    guru,i gues you  have answered yes to all of my questions.thank you..i will take care to not look at it hardly..lol
  6. keron

    help with solid state relay

    it was 50ohms itself.thank you very much.let me try this out. one important thing,BTA 24  will serve my purpose rt?load is not that heavy i guess for BTA 24 600CW. http://www.st.com/stonline/products/literature/ds/7470/bta24.pdf i think A1 and A2 in datasheet is same as  MT1 and MT2 ?in the...
  7. keron

    ozone generator for water purification

    hello all,              please help me with  ideas for generating ozone  and also how to use it in water purification.(say a 500Lit water tank).you will get a lot of circuits to generate ozone but no ideas so far in using it for purification  of water .you will get expensive equipement in market...
  8. keron

    help with solid state relay

    thanks guru,                       so for my application switching a load of 400-500watts in 220volt A/C(SUPPLY VOLTAGE VARIES FROM 160-220VAC) induction motor (in water pump for example). Please suggest resistor values for the triac gate .50ohms will do.or a smaller value needed,? 330ohms...
  9. keron

    help with solid state relay

    thanks guru,                       so for my application switching a load of 400-500watts in 220volt A/C(SUPPLY VOLTAGE VARIES FROM 160-220VAC) induction motor (in water pump for example). Please suggest resistor values for the triac gate. 50ohms will do.or a smaller value needed? 330ohms...
  10. keron

    help with solid state relay

    hello guru,                but the datasheet specifies that current in MOC 3041 triac DRIVER  LEd should be limitted.the value is 15 mamp..the circuit in previous reply by ante also shows the current limiting resistor in pin1.                                                             how to...
  11. keron

    WATER LEVEL MONITOR FOR PUMPS

    any idea about input to logic gate without pull down resistor when input is ,output from a logic gate itself.
  12. keron

    help with solid state relay

    hello Ante,                  that 330ohm resistor between triac gate and terminal i have used but omitted in the circuit diagaram sorry.but someof the data sheets says u need such  a resistor between gate and terminal when you use sensitive gate triac.what do you say about that?.                ...
  13. keron

    help with solid state relay

    hello all,                   i want make a solid state relay using MOC 3041 opto coupler triac driver and BTA 24 triac.i tried the circuit in data sheet of MOC 3041 but it is not working >:(.                         the circuit i used is given as attachement.i want to switch a 1HP induction...
  14. keron

    WATER LEVEL MONITOR FOR PUMPS

    checked omni,not mentioned in any datasheet about connecting two logic gates.should i post it for opinion in forum?
  15. keron

    WATER LEVEL MONITOR FOR PUMPS

    omni.               one more doubt.silly it seems.i read somewhere that every gate has to be pulled down /up using resistor.is that means when using the out from one gate as a input to other gate (example pin 2 of 4001 it need to be pulled down too since its input is from pin 4 of same ic,)i...
  16. keron

    WATER LEVEL MONITOR FOR PUMPS

    none of them controlls two levels simultaneously.thats why i designed y circuit.i have seen almost every circuits u send to me during my serach for a level controller.i think my circuit is more simple than most of the circuits u send. but this one http://www.uoguelph.ca/~antoon/circ/sensor3.htm...
  17. keron

    WATER LEVEL MONITOR FOR PUMPS

    i will do it.the battery part.                                         you are wrong omni for the first time.i have only basic(what i have studied in my school years)knowledge in electronics.i am a physician  with some interest in electronics.can you help me to  design  a water level sensing...
  18. keron

    WATER LEVEL MONITOR FOR PUMPS

    hello Omni,                   can you explain more about  powering your circuit (CMOS) with a small DC battery with an in-line switch.                                         the MOV is used across the contacts of relay which switch on and off the pump.i used it becuase i have seen sparks...
  19. keron

    WATER LEVEL MONITOR FOR PUMPS

    hi omni,         as i metioned before the problem iam facing now is (though actually not a big issue)when i sswitch the pwersupply to circuit on and off rapidly in succesion it makes the pump on.but it still follows the logics and turn soff immediately if no water in lower tank or full tank...
  20. keron

    WATER LEVEL MONITOR FOR PUMPS

    the circuit works in 12 volt DC.CMOS logic gates maximum working voltage is 3- 18 volt.                             the sump in my use is not what you have mentioned.here in india because water supply line pressure is low we collect water in a tank below floor level from supplypipes and pump it...
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