公开(公告)号：US4740966A

公开(公告)日：1988-04-26

申请号：US913831

申请日：1986-09-30

Applicant: James R. Goad

Inventor： James R. Goad

IPC: G08C15/08 ,  H03G3/20 ,  H04J3/04

CPC classification number: H03G3/30 ,  G08C15/08 ,  H04J3/047

Abstract: A plurality of differential analog input channels are multiplexed into a programmable gain amplifier providing four input ranges. The circuit is self-calibrating under microprocessor control with periodic measurements taken of internal channels for analog ground voltage, analog reference voltage and the voltage reference temperature in addition to the analog input signals. The output of the isolation amplifier is fed into a sample and hold circuit and, under the control of an analog input register into an analog to digital converter. An earth barrier separates a primary side which includes the input channels, optically isolated bidirectional MOSFET relays coupled to the input channels, a programmable, selectable gain multiplexer and the input to an isolation amplifier from a secondary side by means of opto isolators bridging the earth barrier. The secondary includes the sample and hold circuit, the power supply, the analog to digital converter, the analog control register, the voltage reference source and decoders.

Abstract translation: 多个差分模拟输入通道被复用到提供四个输入范围的可编程增益放大器中。 该电路在微处理器控制下进行自校准，除了模拟输入信号之外，还对模拟接地电压，模拟参考电压和参考电压的内部通道进行周期性测量。 隔离放大器的输出馈送到采样和保持电路中，并在模拟输入寄存器的控制下转换为模数转换器。 接地屏障将包括输入通道的初级侧，耦合到输入通道的光隔离双向MOSFET继电器，可编程可选择的增益多路复用器和通过桥接接地栅的光隔离器从次级侧输入到隔离放大器 。 次级包括采样保持电路，电源，模数转换器，模拟控制寄存器，电压参考源和解码器。

公开(公告)号：US5945073A

公开(公告)日：1999-08-31

申请号：US928696

申请日：1997-09-12

Applicant: Lee C. Ditzler ,  James R. Goad

Inventor： Lee C. Ditzler ,  James R. Goad

IPC: C01B13/11 ,  F25B21/02 ,  B01J19/08

CPC classification number: C01B13/11 ,  F25B21/02 ,  B01J2219/00137 ,  C01B2201/12 ,  C01B2201/70

Abstract: Ozone generation cells using corona discharge to convert molecular oxygen to ozone are cooled by thermoelectric cooling devices clamped between the outer surface of the cell and a heat sink. The heat sink is preferably a finned structure permitting heat dissipation by air passing between the fins, avoiding the need for water cooling of the cell.

Abstract translation: 使用电晕放电将分子氧转化为臭氧的臭氧发生电池被夹在电池外表面和散热片之间的热电冷却装置冷却。 散热器优选是翅片结构，其允许通过翅片之间的空气散热，避免了电池的水冷却的需要。