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This time we will act for the heating stove aroma or oil furnace with port USB, we do not have to wait for candles come up frequently. But the heat it is not only cool, we need to go with LED Candle is the environment that it is flicker same candle light. So I have to do two section 1st is a hot plate and the second is LED candle circuit. In section of aroma stove, we can buy from general spa shop or  directly dropping on the hot plates at all.

Get started with hot plate first. At first, far more imaginative. for using heater sheet and heater wire. But think of the last simple solution, I decided to use a ceramic resistor and basic equation, that is P=VI, because we must control the current flows to resistor load that power supply can support currency loading or see the table below for choosing the resistance and voltage.

  +5 V power supply for connecting to port USB of a computer or a battery charger of mobile phone. The current output is not less than 1 Amp (Use R 5W).

• R 6R8 > 0.735 amp > 3.67W
• R 10R > 0.5 amp > 2.5W
• R 20R > 0.25 amp > 1.25W

For USB port of Computer, you need to check your switching power supply how many maximum Watt it can supply.

 +12 V  Power supply This value use for comparison when using in car. (Do not forget to change the resistance corresponds the power equation in watt parameter).

• R 6R8 > 1.764 amp > 21.18W
• R 10R > 1.2 amp > 14.4W
• R 20R > 0.6 amp > 7.2W
• R 25R > 0.48 amp > 5.76W
• R 50R > 0.24 amp > 2.88W

The connection is simple, just across the power supply only

LED candle flicker:

This section wether we do not make our stove aroma is still perfume. But it is not romantic. Also enable us to know the status of stove that enabled. The LED candle light is flickering like real candles. It has integrated with the simple 2 Digital IC and a few of passive components only.

Then you need to choose or design your own stove burner how to transfer the most heat to aroma oil without losing energy to the empty. This project may cause global warming us up a little. But enough to reduce Co2 and smell smoke from the burning of candles as well. The figure below shows the ceramic resistor which I try to scrape backside the resistor case to deep wells will be placed the aroma oil. The power supply is my abundant mobile phone charge and truncated a connnetor. Output is 5.7V, 850ma maximum current and then soldering with a ceramic resistor.

Additional Information: http://www.thaiaromatherapy.net/category/articles/

http://wwwlbo.moph.go.th/rx/rxthai/gen3.html

 

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