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US20090290277 |
Relay driving module and an electronic device incorporating the same
A relay driving module is adapted for driving a latching relay, and includes a current limiting circuit, an energy storage component, and a switch circuit. The current limiting circuit is adapted...
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US20090250302 |
Fast turn-off and fast turn-on in inductive load and usage in vehicle application
A fast turn-off and fast turn-on circuit ( 10 ) providing at least one power source ( 12, 20 ), at least one switching device ( 14, 22 ), a coil ( 16 ), and at least a first voltage control device...
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US20090231774 |
Reed Switch Arrays
An array of reed switches ( 13 ) is assembled on a circuit board ( 11 ) having a plurality of through-apertures ( 12 ) with one reed switch ( 13 ) disposed in each aperture with the axis of the...
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US20090225489 |
Control Unit Comprising a Closed-Loop Controller for Regulating the Electrical Coil Current of a Regulating Electrovalve
A control unit has a closed-loop controller which is connected to a regulating electrovalve by way of a feedback branch, forming a closed-loop control circuit, in order to regulate the electrical...
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US20090128980 |
CIRCUIT ARRANGEMENT FOR CONTROLLING ELECTROMAGNETIC VALVES AND VALVE DEVICE WITH A CONTROLLABLE VALVE
A circuit arrangement for controlling electromagnetic valves, has a control unit that issues control signals for controlling the angular position of an electromagnetic valve and receives a reply...
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US20090080133 |
ELECTRONIC MODULE FOR AC/DC COIL WITHIN AN ELECTROMAGNETIC CONTACTOR
The present invention relates to a device and a method for utilizing a control module as an interfaced control of a dually configured AC/DC control coil comprising monitoring a coil voltage of the...
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US20080316670 |
Voltage generator
A voltage generator used to generate a voltage for driving a vehicle fuel injector includes a microcomputer, a coil, and a capacitor. The microcomputer calculates an interval at which the fuel...
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US20080218930 |
Control Apparatus and Control Method of Electromagnetic Drive Valve Operating Mechanism
When a target valve timing determined in accordance with the state of operation of an internal combustion engine is acquired, a feed forward control of setting a command timing of a valve body on...
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US20080151462 |
APPARATUS AND METHOD FOR CONTROLLING A SOLENOID
An apparatus and method for controlling the operation of a solenoid includes a control circuit configured to receive an activation signal in response to a predetermined condition. The control...
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US20080030917 |
High-Pressure Fuel Pump Drive Circuit for Engine
There is provided a high-pressure fuel pump drive circuit for manipulating the electric current to be passed to a solenoid coil for controlling a high-pressure pump. This circuit is characterized...
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