摘要:
The invention relates to a high-accuracy EGR sensor, and EGR system which adopts the above sensor to measure EGR rate. The gas flow meter (7) comprises a sensor section for measuring fluid flow rate and controller for controlling signals transmitted into and out of the sensor section, and is controlled at a working temperature of 350 to 700°C, wherein a protective coat (3) formed on the sensor section has resistance to temperature at which deposition of a PM component in exhaust gases can be prevented.
摘要:
To realize a thermal gas-flow measuring instrument which can suppress the influence of pollution of a support of heating resistor on the output characteristics independent of the use environment. The first heating resistor (21) is placed in the gas to be measured. The temperature sensing resistor (24) which is positioned at upstream side or downstream side of the first heating resistor (21) generates signals relating to the flow rate. Between the first heating resistor (21) and the support (6) for supporting the first heating resistor (21), the second heating resistor (22) is positioned in a state of electrically insulated from the first heating resistor (21). The second heating resistor (22) suppresses the heat being transferred from the first heating resistor (21) to the support (2). The control circuit (31) controls the temperatures of the first heating resistor (21) and the second heating resistor (22) so as the operational temperature range of the second heating resistor (22) or the temperature range at the joint section between the first heating resistor (21) and the second heating resistor (22) to become at or above the temperature at which the water droplet evaporates to disappear by the film boiling.
摘要:
An ignition circuit is formed in one chip comprising an insulated gate bipolar transistor (2) for controlling the flow of a primary current, a current limiting circuit (4) for limiting the current flowing into the transistor (2), and a thermal shut-off circuit (5) capable of forcibly shutting off the primary current in case of a trouble. In the ignition circuit (11) a power supply GND terminal (10) and an ignition control signal positive terminal (8) are divided.
摘要:
A first sensor element 100-1 outputs a first output signal in correspondence to a direction of the magnetic flux lines acting from the outside. A second sensor element 100-2 outputs a second output signal associated with the first output signal in correspondence to a direction of the magnetic flux lines acting from the outside. A first conversion processing section 200-1 converts the first output signal output from the first sensor element 100-1 and the second output signal output from the second sensor element 100-2 into the second physical quantity. A second conversion processing section converts the first output signal output from the first sensor element 100-1 and the second output signal output from the second sensor element 100-2 into a signal representing the rotation angle of the motor.
摘要:
The invention relates to a high-accuracy EGR sensor, and EGR system which adopts the above sensor to measure EGR rate. The gas flow meter (7) comprises a sensor section for measuring fluid flow rate and controller for controlling signals transmitted into and out of the sensor section, and is controlled at a working temperature of 350 to 700°C, wherein a protective coat (3) formed on the sensor section has resistance to temperature at which deposition of a PM component in exhaust gases can be prevented.
摘要:
In order to provide a resin sealed electronic device which is capable of securing high reliability by packaging with a transfer molding resin (4) without using any under filler material, and a method, a resin sealed electronic device which mounts a flip chip type monolithic IC (1) on a hybrid circuit board (3) through bumps (2) and is packaged with a thermosetting resin through transfer molding, wherein the transfer molding resin (4) has a linear expansion coefficient of 3X10 -6 to 17X10 -6 and contains a filler having a particle size smaller than a height of the bump by more than 10 µm, and the resin sealed electronic device is integrated in a unit including the hybrid circuit board (3) mounting the flip chip type monolithic IC (1) through transfer molding with the transfer molding resin (4), and the bump (2) is restrained from moving by the transfer molding resin (4) flowing around at transfer-molding.
摘要:
To provide an ignition device advantageous in cost and space by using an inexpensive small-sized Zener diode (23) having a Zener voltage lower than an induced voltage generated at a primary current supply timing, so as to prevent sparking of a spark plug (19) due to the induced voltage. An ignition device for an internal combustion engine, including a Zener diode (23) provided on the secondary lower-voltage side of an ignition coil (18). The Zener diode (23) comes into conduction at a voltage lower than an induced voltage generated at a primary current supply timing.
摘要:
A mesh structure portion is provided at a part of a stripe structure IGBT chip, gate resistance of a respective minute IGBT is reduced and in a gate portion chip a filter is constituted by a resistor and a condenser. Under a severe environment such as an integrated ignition coil, a small size and a low cost ignitor which can use without a necessity for a protection circuit by a peripheral circuit can be provided. An ignition apparatus having IGBT which is strong against serge resistant performance and noise resistant performance can be obtained.