I am looking for DC to DC boost converter that will replace the transformer job in the above circuit.
The battery and resistor simulates a typical power source that I have (that is 1.4V or 4.5V typically at 4mA at maximum). Switches represent relays controlled externally. Capacitor C1 acts as energy collector when sw1 and sw2 are on. Furthermore, sw3 and sw4 is temporarily off from generator and capacitor C1 to isolate load from power source. When switches status reverse, C1 acts a source for the remaining circuit. My goal is to convert typical pulse to a higher voltage (4V or 11V) at the price of reducing current to 2mA minimum. The transformer in this schematic is not an accurate representation of dual voltage transformer. (the editor does not support it) In this case, the cores of two transformers should be connected. On other circuit simulator, I was able to achieve voltage spike or oscillations decaying exponentially and rapidly through pc simulation. The voltage spike was greater that 10V. I think that I cannot find miniature dual voltage transformer for this typical low voltage and current inputs with very little losses in conversion process. I am looking in alternative circuits such as dc to dc converters or using microamps self powered amplifiers so that I could convert input source from capacitor (C1) to a pulse of higher voltage....I noticed that you have TPS661200 converter on list. Can it handle capacitive source. The pulses are in milliseconds range with 0.02 duty cycle. Thank you for your time.