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31 results about "300B" patented technology

In electronics the 300B is a directly-heated power triode vacuum tube with a four-pin base, introduced in 1938 by Western Electric to amplify telephone signals. It measures 6.4 inches high and 2.4 inches wide, and the anode can dissipate 40 watts. In the 1980s it started to be used increasingly by audiophiles in home audio equipment. The 300B has good linearity, low noise and good reliability; it is often used in single-ended triode (SET) audio amplifiers of about eight watts output; a push-pull pair can output 20 watts.

Electrically isolated power and data coupling system suitable for portable equipment

An electrically isolated combined power and signal coupler is usable for a porta ble medical monitoring device (310) attachable to a patient (A,B) in a medical e nvironment. A power coupling system transfers power between a power source and a powered device (310) separated by a physical and electrical isolation barrier. The system comprises a power coupler including in a first device (310), a first section of a magnetic circuit including a first core section (322) of magnetical ly permeable material of cross-sectional area larger at an isolation barrier int erface than within a first winding located on the first core section. The first section of magnetic circuit being suitable, in a docking mode (300B), for positi oning adjacent to a second section of magnetic circuit (344) in a second device (340) to form a magnetic circuit used to transfer power between said first and s econd device. The second section of magnetic circuit including a second core sec tion with a second winding magnetically coupling with the first winding via the completed magnetic circuit in the docking mode for the power transfer. The first core section comprises at least one planar core section at the isolation barr r interface for positioning adjacent to a corresponding substantially planar cor e section of said second section of magnetic circuit at the isolation barrier in terface to form the magnetic circuit without a device containing the second sect ion of magnetic circuit enveloping a significant portion of the substantially pl anar core section.
Owner:DRAEGER MEDICAL SYST INC

Air conditioner

Provided is an air conditioner capable of selecting a cooling run and a warming run using a high temperature-pressure gas in a freezing cycle, and capable of performing a cooling run, in which the discharge capacity of a variable-capacity compressor is variably controlled to control a compartment cooling temperature to a predetermined value, and a warming run, in which the discharge capacity of the variable-capacity compressor is variably controlled to control a compartment warming temperature to a predetermined value. The air conditioner capable of selecting the cooling run and the warming run using the hot high-pressure gas in the refrigerating cycle comprises a variable-capacity compressor for changing the pressure in a control chamber to control a discharge capacity variably by adjusting the opening a control valve including a pressure sensing mechanism (300A) for sensing the pressure of the lower-pressure side of the refrigerating cycle to urge a valve member, and a solenoid (300B) for urging the valve member in accordance with an input electric current, and a control device (400) for controlling the conductive state of the solenoid (300B) to adjust the opening of the control valve. The control device (400) controls the conductive state of the solenoid (300B) so that the control valve may act at a cooling time in accordance with the pressure of the lower-pressure side of the refrigerating cycle sensed by the pressure sensing mechanism (300A) and the conductivity of the solenoid (300B), and so that the control valve may act at a warming time in accordance with not the coolant pressure sensed by the pressure sensing mechanism (300A) but only the conductivity of the solenoid (300B).
Owner:SANDEN CORP

Control device for hybrid vehicle

A control device for a hybrid vehicle, comprising a mode whereby the vehicle runs using a motor only, and a mode whereby the vehicle uses both the motor and an engine. When the motor temperature of an MG (2) (300B) exceeds a threshold temperature, an ECU (400) moves from a running mode that uses the MG (2) (300B) only, to a running mode that limits the load on the MG (2) (300B). When the charging state of a battery (310) for running exceeds a threshold value, the ECU (400) performs control such that in addition to the system voltage for driving the MG (2) (300B) being reduced, the threshold temperature is increased, and the running mode whereby only the MG (2) (300B) is used is maintained.
Owner:TOYOTA JIDOSHA KK

Drip element sealing device, in particular for rolling bearings

A sealing device (300B) includes a first annular shield (307) in use rotating, a second annular shield (308), in use fixed and arranged in front of the first shield for delimiting therebetween a first annular chamber (309) and a sealing ring (314) provided with first and a second annular lips (115, 116) which extend axially and radially projecting from a flange portion (313) of the second shield and towards a flange portion (312) of the first shield, inside the annular chamber. At least one of the lips (315) cooperates with the flange portion (312) of the first shield without touching it for defining a first dynamic labyrinth seal (317) therewith. The first shield integrally supports a third annular lip (318) which extends projecting from the first shield (307) towards one of the first and second lips without touching it for defining a second dynamic labyrinth seal (319) between the first and second shield (307,308) and inside the annular chamber (109). The first annular lip (315) defines a large U-shaped annular cavity (325), the second annular lip (316) defines an asymmetric V-shaped annular cavity (327) and the third I-shaped annular lip (318) defines a small U-shaped annular cavity (326) radially between the other two cavities (325, 327). Radially outward of the cavities (325, 326, 327) there are provided respective drip guard elements (337, 338, 321) which convey impurities which may have entered into the annular chamber (309) directly into the cavitiies (325, 326, and 327) and towards the exterior from the annular chamber (309).
Owner:AB SKF

Body stretching bed

The present invention relates to a body stretching bed including a base plate (220), a detection unit (340), a front upper frame (231) and a rear upper frame (241), a first crank member (320a) and a second crank member (320b), a pair of first moving shafts (360a) and second moving shafts (360b), a pair of third moving shafts (360c) and fourth moving shafts (360d), a moving panel (350), and support members (370, 370a). The base plate is mounted with a plurality of decelerators (300a, 300b). The detection unit is arranged on the base plate, and generates signals for detecting the phase of either of the decelerators (300a, 300b) and stopping the operation of a driving unit. The front upper frame and the rear upper frame are arranged outside the base plate (220) so as to form a frame of the bed. The first and second crank members are arranged at both sides of a driving shaft (305) of the decelerators (300a, 300b). The first and second moving shafts are connected to the first crank member (320a) such that the first and second moving shafts are rotatable, and arranged in the vertical direction. The third and fourth moving shafts are connected to the second crank member (320b) such that the third and fourth moving shafts are rotatable, and arranged in a vertical direction. The moving panel is mounted on the first to fourth moving shafts (360a to 360d). The support members (370, 370a) have both ends connected to the moving panel (350) and the front upper frame (231) or the rear upper frame (241) to support a matt unit (100). The matt unit (100) has a mattress (110), the center of which is tied to the moving panel (350) and the top and bottom of which are tied to a bed frame (200).
Owner:柳荣善 +1

Absolute encoder

An absolute encoder comprises: an optical scale having an optical pattern; a module package (300B) in which a light-emission element (31) for irradiating light onto the optical scale and a light-reception element (32) for receiving reflected light from the optical scale are covered by a light-transmitting resin (33A); and a control unit for calculating the absolute rotation angle of the optical scale on the basis of a signal output by the light-reception element (32) according to the reflected light. The module package (300B) has light-blocking resin (34B) disposed so as to be exposed at the surface of the light-transmitting resin (33A) facing the optical scale and pass through the intermediate position between the center of the light emission surface (310) of the light-emitting element (31) and the center of the light reception surface (320) of the light-reception element (32).
Owner:MITSUBISHI ELECTRIC CORP

Air conditioner and its control method

A control method for an air conditioner (1), an indoor unit of the air conditioner (1) comprising a first section (10a) and a second section (10b) divided in a transversal direction of the indoor unit; a first crossflow fan (310) and a second crossflow fan (320) are respectively provided inside the first section (10a) and the second section (10b); an indoor unit heat exchanger (300) extends in the transversal direction of the indoor unit, and comprises a first segment (300a) located in the first section (10a) and a second segment (300b) located in the second section (10b); the first section (10a) is further provided with a temperature detection device (410) which is used for detecting the temperature of the first segment (300a) of the indoor unit heat exchanger (300). The control method comprises: acquiring opening / closing states of the two crossflow fans during the cooling process of the air conditioner (1); continuously detecting the temperature of the first segment (300a) of the indoor unit heat exchanger (300) by means of the temperature detection device (410); and determining an operation mode of a compressor (100) of the air conditioner (1) in accordance with the opening / closing states of the crossflow fans and the temperature of the first segment (300a) of the indoor unit heat exchanger (300). Further disclosed is an air conditioner (1) to which the above control method is applied.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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