Wirless Charing problems

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Hi all,

I would like to make a wireless charging device which is based
on
the reference circuit found in the Internet. Also, these circuits were
reverse engineered from a toothbrush. I have built the circuits and
there
were some problems occurred.

1). MPSA44 will be extremely hot, say, over 120 celcius!, if
the
coil on the battery(schematic1_battery.pdf in
news://news.wonderfuland.net/[email protected]) side is
removed.

2). MPSA44 will be hot, around 65 celcius, in normal charging
operation.

3). Although the circuits can charge the battery, the
waveform
across the coil on the battery is not a pure sine wave. Please have a
look
on the picture in news://news.wonderfuland.net/[email protected].

4) There are 3 different frequencies existed and they are
100Hz,
57.8kHz and 68kHz.

I just know that there are some kinds of LRC ocilliation in
high
frequency about 50kHz. However I dont know why there are 3 different
frequencies waveform in the circuit.

I would like to know what is going wrong in the circuit and
how can
I improve it? Which components in the circuit can I tune or changed?

Thanks all. I know it is little bit long....

Best,
Michael