function:
water heater with low power consumption.
High voltage generation with amp flow restriction. needs to work in resonant condition.

pins:
Pulse		- pulse input at resonant frequency
SRes1		- resonant output for comparator
SRes2		- resonant output for comparator
VAnalog		- regulation input signal for VIC DC Voltage 1  100V
VSAnalog	- analog DC voltage level output during pulse on condition (Pulse)
SAmp		- DC amp flow sense output
PSwitch		- input pulse for switching between 2 capacitors
HVPulse1a,b	- high voltage output < 100 KV to capacitor
HVPulse1a,b	- high voltage output < 100 KV to capacitor


reference:
SMTB memo 430 chapter 11


