Fluid conditioning

A method of driving one or more coils in a fluid conditioning system with a target load current to generate an alternating magnetic field directed at a fluid, the method comprising the steps of:

• developing, in a controller, a first variable output having a frequency range that sweeps between a minimum frequency and a maximum frequency, and developing, in the controller, a second variable output in the form of a duty cycle controlled signal,
• developing, in a switch mode power supply circuit, a variable supply voltage in response to the second variable output and a current sense circuit, wherein the variable voltage is used to feed a voltage supply of a push pull AC drive circuit, and
• developing, at the AC drive circuit, a drive signal to develop a target load current in response to the first variable output and the variable supply voltage thereby forming a current feedback loop by monitoring the output current of the switch mode power supply circuit.

-18. (canceled)

-26. (canceled)

A fluid conditioning system adapted to condition fluid in a bore hole, the system comprising at least one non metallic fluid pipe portion with one or more coils wrapped around the pipe portion, a drive system comprising a push pull AC drive circuit and a coil drive circuit, wherein the AC drive circuit is arranged to generate a drive signal having a target current and a frequency range that sweeps between a minimum frequency and a maximum frequency, wherein the drive system is arranged to transmit the drive signal from the coil drive circuit to induce the drive signal into the one or more coils for conditioning fluid that passes through the one or more coils.

-39. (canceled)

-44. (canceled)

(canceled)

-55. (canceled)