We have designed a receiver circuit based on the coil and rectifier circuit in the DC2554A-B kit. We do not need a direct battery charger circuit as that is already in our equipment, so are looking for the receiver to supply 6V (dc) at 50 or 150 mA. The transmitter circuit in the kit does nto perform well at these loads. We have since discovered the DC2773A kit and have downloaded articles on this. It appears we may have to use a fixed power output? We can use the values from the DC2773A kit for our 50mA requirement, have you got any recommended values for a 150mA version. This is a LT spice model of our receiver circuit, we use LT3470 regulator driven from the transmitted power, it was my original idea to use the output of the 3470 as a switch to control the "presence" detector, however the DC2555 transmitter circuit does not work reliably with this set up....I also tried with the 33V zener and a 20V presence zener as shown in other of your circuits, without success.
Any clues?
Thanks
Clive Brooks
