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1. 发明授权

US6154081A Load circuit having extended reverse voltage protection 有权
标题翻译：负载电路具有延长的反向电压保护
公开(公告)号：US6154081A
公开(公告)日：2000-11-28
申请号：US333461
申请日：1999-06-15
申请人： William Frank Pakkala , Steven C. Kekel , Paul Louis Du Bois , Daniel Alexander Crawford , Adam L. Burnham
发明人： William Frank Pakkala , Steven C. Kekel , Paul Louis Du Bois , Daniel Alexander Crawford , Adam L. Burnham
IPC分类号： H02H11/00 , H03K17/0814 , H03K5/08
CPC分类号： H03K17/08142 , H02H11/003
摘要： An improved reverse voltage protection circuit that protects sensitive electronic devices from damage due to both reversed battery connections and source voltage interruptions. An N-channel protection FET is inversely connected between the negative terminal of the protected device and ground, and the conduction of the protection FET is extended during a reverse transient protection period following interruption of the source voltage. A capacitor connected across the gate-to-source circuit of the protection FET is charged from the source voltage through a low impedance charging circuit including a diode to prevent the capacitor from discharging, and is discharged during an interruption of the source voltage through a high impedance discharging circuit connected in parallel with the charging circuit.
摘要翻译：改进的反向电压保护电路，保护敏感电子设备免受由于电池反向连接和电源电压中断造成的损坏。 N沟道保护FET反向连接在受保护器件的负极和接地之间，并且在源电压中断之后的反向瞬态保护期间保护FET的导通延长。连接在保护FET的栅极 - 源极电路之间的电容器通过包括二极管的低阻抗充电电路从源极电压充电，以防止电容器放电，并且在源极电压中断期间通过高电平放电阻抗放电电路与充电电路并联连接。

2. 发明授权

US06384640B1 Pulse generator for indicating a change in the magnitude of an input signal 失效
标题翻译：脉冲发生器，用于指示输入信号幅度的变化
公开(公告)号：US06384640B1
公开(公告)日：2002-05-07
申请号：US09697575
申请日：2000-10-26
申请人： Paul Louis Du Bois , William Frank Pakkala , Joyce Dale Carsey , Daniel Alexander Crawford , Steven C. Kekel
发明人： Paul Louis Du Bois , William Frank Pakkala , Joyce Dale Carsey , Daniel Alexander Crawford , Steven C. Kekel
IPC分类号： H03K5153
CPC分类号： H03K5/007 , H03K5/1534
摘要： A pulse generator for indicating a change in the magnitude of an input signal includes a comparator, a first network connected to one input of the comparator for receiving the input signal, and a second network connected to the other input of the comparator for receiving the input signal. Both the first and second networks provide output signals to the comparator which transition in response to a magnitude change of the input signal from their respective baseline magnitudes to respective peak magnitudes, and back to their respective baseline magnitudes. The component values of the networks are selected such that one of the first or second network output signals is positive relative to the other network output signal over some period of time during the transition to the peak magnitude and return to the baseline magnitude to cause the comparator to generate a pulse indicating a change in the magnitude of the input signal.
摘要翻译：用于指示输入信号的幅度变化的脉冲发生器包括比较器，连接到用于接收输入信号的比较器的一个输入端的第一网络和连接到比较器的另一个输入的第二网络，用于接收输入信号。第一和第二网络都向比较器提供输出信号，该信号响应于输入信号从它们各自的基线幅度到相应的峰值幅度的幅度变化而转变，并返回到它们各自的基线幅度。选择网络的分量值，使得第一或第二网络输出信号之一相对于另一个网络输出信号在转变到峰值幅度期间的某段时间内为正，并返回到基线幅度，以使比较器以产生指示输入信号幅度变化的脉冲。

3. 发明授权

US06664736B1 Method and system for indicating bulb circuit failure 失效
标题翻译：指示灯泡电路故障的方法和系统
公开(公告)号：US06664736B1
公开(公告)日：2003-12-16
申请号：US10207364
申请日：2002-07-29
申请人： William F. Pakkala , Steven C. Kekel , Daniel A. Crawford , Diana K. Voges
发明人： William F. Pakkala , Steven C. Kekel , Daniel A. Crawford , Diana K. Voges
IPC分类号： B60Q126
CPC分类号： B60Q11/005
摘要： A method of monitoring faults in a vehicle bulb circuit including bulb and a fuse. The method includes detecting acceleration of the vehicle and comparing the acceleration of the vehicle to a limit. Based on the relationship of the acceleration to the limit, it is determined whether a fault exists in the bulb circuit. An indicator is activated in response to detecting a fault in the bulb circuit. A system for implementing the method is also disclosed.
摘要翻译：一种监视包括灯泡和保险丝的车灯电路中的故障的方法。该方法包括检测车辆的加速度并将车辆的加速度与极限进行比较。基于加速度与极限的关系，确定灯泡电路中是否存在故障。响应于检测灯泡电路中的故障，指示器被激活。还公开了一种用于实现该方法的系统。

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