I am working on Ultrasonic Mist Maker or humidifier circuit, but does not found any good circuit.

As search on google that we have to make about frequency 1.6MHz to convert water into mist. using these type of piezoelectric transducer

enter image description here

i found some circuits like this one enter image description here

But its very big circuit with many components used. We require small size circuit with lowest possible components used.

  • \$\begingroup\$ Why do you need to minimize the number of components you use? That circuit only has a few dozen, anyway, which seems like not very many to me. \$\endgroup\$ – Hearth May 14 '18 at 17:37
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    \$\begingroup\$ The left part of the circuit is the mains supply. Replace it with a battery and you got rid of it. The middle part of the circuit is a water detector. Simply remove it if you don't need that function. The remainder is one transistor, one diode, three caps and three coils, which aren't removeable. \$\endgroup\$ – Janka May 14 '18 at 17:40
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    \$\begingroup\$ you can't get much simpler than this \$\endgroup\$ – Tony Stewart Sunnyskyguy EE75 May 14 '18 at 18:10
  • \$\begingroup\$ You can be very sure that those consumer electronics designs have cost pared down low. You can relax the requirements, as Janka suggests or perhaps there is some ridiculously expensive one-chip solution from a boutique IC house that saves a part or two compared to the super-cheap one-transistor self-resonant oscillator circuit shown. For example the Chinese novelty fountains run from low voltage 24VDC so the power supply complexity is externalized. \$\endgroup\$ – Spehro Pefhany May 14 '18 at 18:12
  • \$\begingroup\$ That's probably a 30 year old design judging by its componentry. Nowadays you can probably repurpose a switch mode convertor IC like a boost convertor, just look for one that switches at about 1.6MHz. \$\endgroup\$ – Brian Drummond May 14 '18 at 19:13

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