公开(公告)号：US3723830A

公开(公告)日：1973-03-27

申请号：US3723830D

申请日：1970-10-14

Applicant: MOTOROLA INC

Inventor： FREDERIKSEN T ,  LONG E

IPC: H01L27/00 ,  H01L29/00 ,  H01L29/866 ,  H01L9/00

CPC classification number: H01L29/00 ,  H01L27/00 ,  H01L29/866

Abstract: A low current, low noise avalanche diode is disclosed which can be provided on a semiconductor chip, in which a region of highly doped material of one conductivity type is produced in an epitaxial layer of material which is less highly doped and is of the same conductivity type, and at least one finger of such highly doped material extends from said highly doped region towards and makes a PN junction with a region of oppositely doped material. Contacts are applied to the two regions and act as the electrodes of the resultant diode.

Abstract translation: 公开了一种低电流，低噪声的雪崩二极管，其可以提供在半导体芯片上，其中一种导电类型的高掺杂材料的区域在材料的外延层中产生，该材料的外延层具有较低的掺杂并且具有相同的导电性 类型，并且这种高掺杂材料的至少一个指状物从所述高掺杂区域延伸并且与相对掺杂材料的区域形成PN结。 触点施加到两个区域并用作所得二极管的电极。

公开(公告)号：US3735240A

公开(公告)日：1973-05-22

申请号：US3735240D

申请日：1971-10-15

Applicant: MOTOROLA INC

Inventor： DAVIS W ,  RUSSELL R ,  FREDERIKSEN T ,  LONG E

IPC: F02D41/04 ,  G05F1/56

CPC classification number: G05F1/56 ,  Y10T307/461

Abstract: A current regulator for an automotive fuel injection system includes an integrated circuit chip having a differential amplifier with a control point to be coupled through an external impedance to the power supply. The differential amplifier drives a pair of Darlington connected transistors to control the current from the power supply to the load, which flows through the impedance. The collector electrodes of the Darlington transistors are connected to the control point, which is coupled to an input of the differential amplifier to form a closed negative feedback loop. The transistors of the differential amplifier may have dual collector electrodes, and first and second Darlington pairs coupled thereto can control the current supplied to first and second loads. Switches are connected to the Darlington inputs for selectively enabling one output or the other.

Abstract translation: 用于汽车燃料喷射系统的电流调节器包括具有差分放大器的集成电路芯片，该差分放大器的控制点将通过外部阻抗耦合到电源。 差分放大器驱动一对达林顿连接的晶体管，以控制从电源到流过阻抗的负载的电流。 达林顿晶体管的集电极连接到控制点，该控制点耦合到差分放大器的输入端以形成闭合负反馈回路。

公开(公告)号：US3786344A

公开(公告)日：1974-01-15

申请号：US3786344D

申请日：1971-10-04

Applicant: MOTOROLA INC

Inventor： DAVIS W ,  RUSSELL R ,  FREDERIKSEN T ,  LONG E

IPC: G05F1/56 ,  F02D41/20 ,  H01F7/18 ,  H03K17/64 ,  G05F1/60

CPC classification number: F02D41/20 ,  F02D2041/2017 ,  F02D2041/2031 ,  F02D2041/2058 ,  H01F7/1805 ,  H03K17/64

Abstract: A system for energizing an inductive load includes a voltage regulator for providing a constant voltage across the load until the current builds up to a particular value, and a current regulator which then takes over to provide a constant holding current at a lower value. The voltage regulator may include a closed loop for holding the voltage across the inductive load constant or may respond to a regulated voltage value to control a power stage for providing a constant voltage. The voltage across a sensing resistor in the power stage controls the crossover from the voltage regulation mode, to the current regulation mode and the current regulator automatically resets the reference to control the power stage to provide a constant current of a lower value through the load. The system can be used to supply current to coils of injector valves in a fuel injection system, and may include two power stages for supplying current to two banks of coils. The regulator system is switched from one power stage to the other during successive 180* rotary positions of the engine for both stages.

Abstract translation: 用于激励感性负载的系统包括用于在负载之间提供恒定电压直到电流达到特定值的电压调节器，然后电流调节器接管以提供较低值的恒定保持电流。 电压调节器可以包括用于保持感应负载两端的电压恒定的闭环，或者可以响应于稳压电压值来控制用于提供恒定电压的功率级。 功率级中的感测电阻两端的电压控制从电压调节模式到电流调节模式的交叉，电流调节器自动复位参考电压，以控制功率级，以通过负载提供较低值的恒定电流。 该系统可以用于向燃料喷射系统中的喷射器阀的线圈供应电流，并且可以包括用于向两组线圈提供电流的两个功率级。 在发动机的连续180°旋转位置，调节器系统从一个功率级切换到另一个功率级，用于两级。