| 发明名称 |
FLUID CONDITIONING |
| 摘要 |
A fluid conditioning control system for 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 control system comprising a controller, a switch mode power supply circuit and a push pull AC drive circuit, wherein the controller is arranged to develop a first variable output having a frequency range that sweeps between a minimum frequency and a maximum frequency, and further arranged to develop a second variable output in the form of a duty cycle controlled signal, wherein the switch mode power supply circuit is arranged to develop a variable supply voltage to the AC drive circuit in response to the second variable output and a current sense circuit, and the AC drive circuit is arranged to develop a drive signal for developing a target load current in response to the first variable output and the variable supply voltage, thereby forming a current feedback loop. |
| 申请公布号 |
US2015090593(A1) |
申请公布日期 |
2015.04.02 |
| 申请号 |
US201314389517 |
申请日期 |
2013.03.26 |
| 申请人 |
CALCLEAR INVESTMENTS PTY LIMITED |
发明人 |
Fayle Robyn Anne;Thomson Stephen |
| 分类号 |
C02F1/46;E21B41/02 |
主分类号 |
C02F1/46 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A fluid conditioning control system for 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 control system comprising a controller, a switch mode power supply circuit and a push pull AC drive circuit,
wherein the controller is arranged to develop a first variable output having a frequency range that sweeps between a minimum frequency and a maximum frequency, and further arranged to develop a second variable output in the form of a duty cycle controlled signal, wherein the switch mode power supply circuit is arranged to develop a variable 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 the AC drive circuit in response to the second variable output and a current sense circuit, and the AC drive circuit is arranged to develop a drive signal for developing 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. |
| 地址 |
Brookvale AU |
