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Author Topic: Oscillating Capacitor Circuit  (Read 13015 times)

gotoluc

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Oscillating Capacitor Circuit
« on: September 13, 2008, 01:43:41 AM »
Hi everyone,

today I was playing around with a circuit recommended by YouTube user name: crob227  but I had no luck getting it to work as he recommended. So I took the circuit apart and started testing one component at a time and also added a load to the capacitor. A soon as I did this the load (bulb) started to oscillate. The circuit at that point also had a regular electrical dimmer for home use like crob227 had recommended to use in his circuit. By tuning the dimmer there is a point where the output at the capacitor is at the highest DC voltage to which is also at the point where the circuit is using the least amount of watts according to my new Kill A Watt power consumption meter.

Please have a look at the video which is very complete and post what you think of this simple circuit and effects.

Video: http://www.energetictube.com/play/Energy__Unsorted/Capacitor_Self_Pulsing_Circuit_test_1

Here is the data of the tests:

Bulb only on the 120vac 60hz grid:

Voltage to bulb:            121vac
Amps consumed:          .54a
Watts consumed:           66w
Volt Amps:                    66va
AC frequency:              59.9hz
Power Factor:                1.00
Bulb temperature:   290f. or  143c.


Bulb in circuit supplied by 120vac 60hz grid:

Voltage to circuit:        121vac
Amps consumed:          2.4a
Watts consumed:           37w
Volt Amps:                   290va
AC frequency:              59.9hz
Power Factor:                0.13
Bulb temperature:   275f. or  135c.


The Kill A Watt meter I used for testing also has a Kilowatt/hr. test which I did do also. When you plug in the meter it starts the internal clock at that moment, so I did the test with the bulb to the grid only and kept looking until the first digit appeared in the Killowatt/hr. display and looked at the clock and that took 8 minutes. I unplugged the meter to reset the clock and did the test with the bulb attached to the circuit and it took 15 minutes for the first digit to appear.

Thanks for looking.

Luc
« Last Edit: September 13, 2008, 02:43:14 AM by gotoluc »

wattsup

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Re: Oscillating Capacitor Circuit
« Reply #1 on: September 13, 2008, 02:34:17 AM »
@gotoluc

I don't know that much about it but from experience selling power factor correction systems way back, meters like the Kill-A-Watt may not be reading the exact conditions due to returning harmonics from your capacitor oscillations. The Kill-A-Watt is usually used to count the load consumption of known appliances and may not react well with devices that are obviously creating some flyback conditions. I would recommend using a real voltmeter and ammeter on the feed line to figure out the watts.

gotoluc

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Re: Oscillating Capacitor Circuit
« Reply #2 on: September 13, 2008, 02:52:54 AM »
@gotoluc

I don't know that much about it but from experience selling power factor correction systems way back, meters like the Kill-A-Watt may not be reading the exact conditions due to returning harmonics from your capacitor oscillations. The Kill-A-Watt is usually used to count the load consumption of known appliances and may not react well with devices that are obviously creating some flyback conditions. I would recommend using a real voltmeter and ammeter on the feed line to figure out the watts.

Thanks for taking the time to look at this wattsup and posting a suggestion as to what could be going on here ;).

The problem though is power factor is very important to measure when we are dealing with grid power so I don't think just using a regular ammeter will give the complete picture without knowing the power factor. I could be wrong though and would like some more opinions to help solve this.

Humm :-\ maybe an isolation transformer ???

Thanks for taking the time to post.

Luc

gotoluc

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Re: Oscillating Capacitor Circuit
« Reply #3 on: September 13, 2008, 02:55:02 AM »
@everyone,

I think the best test to do to see if this is a Kill A Watt meter measuring problem is to do the test at the homes electrical panel with all the breakers off and use the homes electrical utility meter to measure and see if there is any power saving using the circuit or not.

Hopefully I'll have a chance to do this tomorrow during the day! ;D.. and I'll post my finding.

Stay tuned.

Luc
« Last Edit: September 13, 2008, 03:30:52 AM by gotoluc »

Linearfashion

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Re: Oscillating Capacitor Circuit
« Reply #4 on: September 13, 2008, 03:05:35 AM »
Power factor is W/VA , and if your using an incondescent bulb it is purley resistive therefore watts and VA  should be about equal thus power factor will be 1.

gotoluc

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Re: Oscillating Capacitor Circuit
« Reply #5 on: September 13, 2008, 11:20:52 PM »
@everyone,

I did the test as I said using the homes electrical utility meter because that is what counts!... I am sad :( to report that the Kill A Watt consumption meter was fooled by the circuit but it was not by the homes electrical meter. For one revolution of the dial on the homes electrical meter took 5 minute 30 seconds with the bulb connected to the circuit and took 7 minute 30 seconds with just the bulb connected (no circuit) So that says it all there. 

I am happy to have found this great way of testing since some of our electronic testing equipment is not capable of doing the job correctly and this is one good example.

I wounder ::) If I can buy a home electrical analogue meter ??? oh well... I can always use the one that comes with the home ;D

Thanks for looking

Luc

the_big_m_in_ok

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Re: Oscillating Capacitor Circuit
« Reply #6 on: June 07, 2010, 10:33:09 PM »
Please have a look at the video which is very complete and post what you think of this simple circuit and effects.

Video: http://www.energetictube.com/play/Energy__Unsorted/Capacitor_Self_Pulsing_Circuit_test_1
Sorry to say, but it looks like someone took the link down.  It was runningat one time, since there were past posts in reference to it.

http://www.energetictube.com is up and running, and looks like a useful site at first glance.

--Lee

gotoluc

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Re: Oscillating Capacitor Circuit
« Reply #7 on: June 08, 2010, 04:50:44 AM »
Sorry to say, but it looks like someone took the link down.  It was runningat one time, since there were past posts in reference to it.

http://www.energetictube.com is up and running, and looks like a useful site at first glance.

--Lee

Hi Lee,

here's an updated link to that video: http://www.modvid.com/play/Energy__Unsorted/Capacitor_Self_Pulsing_Circuit_test_1

Luc

wattsup

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Re: Oscillating Capacitor Circuit
« Reply #8 on: June 08, 2010, 05:52:38 AM »
@gotoluc

How can 121 volts at 2.4 amps = 37 watts ?????

gotoluc

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Re: Oscillating Capacitor Circuit
« Reply #9 on: June 08, 2010, 06:10:58 AM »
@gotoluc

How can 121 volts at 2.4 amps = 37 watts ?????

In the case of the kill-a-watt meter used in the video I found it was being affected by the capacitor oscillation. However, in an AC circuit I believe if the power factor is less than 1.00 the watts drop as the power factor drops. You cannot calculate wattage as you would with DC. For AC wattage calculations you need to know power factor to get the correct watts value.

Luc

the_big_m_in_ok

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Re: Oscillating Capacitor Circuit
« Reply #10 on: June 08, 2010, 09:16:07 PM »
Hi Lee,
here's an updated link to that video: http://www.modvid.com/play/Energy__Unsorted/Capacitor_Self_Pulsing_Circuit_test_1
Luc
Much better.  The new video runs okay on the computer I borrow.  Can you incorporate a wiring diagram of the circuit into the last 30secs - 1 minute of the video so others can at least look at it and abstract a hand drawing from the screen?

--Lee

gotoluc

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Re: Oscillating Capacitor Circuit
« Reply #11 on: June 09, 2010, 06:37:44 AM »
Much better.  The new video runs okay on the computer I borrow.  Can you incorporate a wiring diagram of the circuit into the last 30secs - 1 minute of the video so others can at least look at it and abstract a hand drawing from the screen?

--Lee

Very simple circuit. Grid 120 vac connected to a FWBR, + of bridge goes though a dimmer and then through a 60mF AC capacitor and back to the - of the FWBR. So both dimmer and capacitor are in series. The bulb or load is connected in parallel to the capacitor.

Luc

the_big_m_in_ok

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Re: Oscillating Capacitor Circuit
« Reply #12 on: June 09, 2010, 11:18:41 PM »
Very simple circuit. Grid 120 vac connected to a FWBR, + of bridge goes though a dimmer and then through a 60mF AC capacitor and back to the - of the FWBR. So both dimmer and capacitor are in series. The bulb or load is connected in parallel to the capacitor.
Luc


----------+
              /\                               (I recommend >200V)
             /  \                                     60 mmF
            /     \       POS                        | /
         +/        \+------------DIMMER----||---------+----+
AC     |\        /                 (different      | \            |      |
         | \     /                    types                         |      |
         |   \  /                    available)                     |      \
         |    \/                          |                           |      /  AC
------------                          |                           |      \  bulb
         |                                 |                          |       |
         |                                 |                          |       |
         +-----------------------+------------------+-----+
                          NEG

@gotoluc
Does this look like what you described?

--Lee

gotoluc

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Re: Oscillating Capacitor Circuit
« Reply #13 on: June 10, 2010, 06:16:37 AM »
I thought My explanation was clear :-\


the_big_m_in_ok

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Re: Oscillating Capacitor Circuit
« Reply #14 on: June 10, 2010, 10:48:08 PM »
I thought My explanation was clear :-\
Okay, I see both diagrams now.

--Lee