A body associated device comprises a housing, an adhesive layer configured to be applied to a body of a living subject, and at least one standoff located between the housing and the adhesive layer. An electronic module may be located within the housing of the body associated device. A personal communication system comprises a body associated device including an electronic module and further comprises a feedback portion coupled to the housing and to the electronic module. The feedback portion is configured to communicate information between the living subject and the body associated device. An external local node is operative to provide at least one of transmit communications to and receive communications from the body associated device.

Wearable personal body associated device with various physical configurations

The ingestible event marker data framework provides a uniform, comprehensive framework to enable various functions and utilities related to ingestible event marker data (IEM data). The functions and utilities include data and / or information having an aspect of data derived from, collected by, aggregated by, or otherwise associated with, an ingestion event.

Ingestible event marker data framework

Ingestible event markers having high reliability are provided. Aspects of the ingestible event markers include a support, a control circuit, a first electrochemical material, a second electrochemical material and a membrane. In addition, the ingestible event markers may include one or more components that impart high reliability to the ingestible event marker. Further, the ingestible event markers may include an active agent. In some aspects, the active agent, such as a pharmaceutically active agent or a diagnostic agent may be associated with the membrane.

Highly reliable ingestible event markers and methods for using the same

Direct current (DC) circuit breakers are a key enabling technology for fault management in multiterminal high-voltage DC (HVDC) systems DC fault isolation is challenging due to the high rate of rise of the fault current and the lack of natural current zero-crossings found in ac systems In this paper, we present a novel superconducting hybrid dc circuit breaker that utilizes the intrinsic characteristics of the superconductor material The automatic quench of the superconductor coil as a result of a high fault current transfers the current from the mechanical switch to the semiconductor switch The isolating mechanical switch is able therefore to open at low current and recover its dielectric capability rapidly A low voltage DC circuit breaker prototype has been built using a multistrand magnesium diboride (MgB2) coil, a vacuum interrupter, and an insulated-gate bipolar transistor module This prototype successfully demonstrated interruption of 500 A DC within 44 ms This paper presents the design of the superconducting hybrid breaker prototype and a detailed analysis of the experimental results This superconducting hybrid dc circuit breaker has significant potential for scaling up the high-voltage and high-current applications

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Design and Experimental Tests of a Superconducting Hybrid DC Circuit Breaker

The press-fit type connector terminal includes a pin section having a U-shaped or quadrangular cross-section, and a contact section situated at a front end of the pin section, the contact section including a contact piece surrounding an imaginary center line parallel to a longitudinal axis of the pin section, and a slit formed at a part of the contact piece and extending substantially parallel to the imaginary center line, the connector terminal being comprised of a single bent metal plate having elasticity.

Press-fit type connector terminal

The invention relates to a method for the provision of a D.C. voltage, in particular for a motor vehicle which is supplied by a battery when at a standstill. The method is carried out by means of a microcontroller νC (40), an auxiliary supply (231; 232; 320, 331) and a seal-in circuit (26; 26') for maintaining the auxiliary supply in an active state. The method comprises the following steps: the auxiliary supply (231, 232; 320, 331) is activated by a closing criterion, which initiates the activation of the microcontroller νC (40), the latter in turn activating the seal-in circuit (26; 26'); the microcontroller νC (40) detects the presence of a disconnection command and after said detection the seal-in circuit (26; 26') is deactivated by the microcontroller νC (40) with a delay corresponding to predetermined criteria.

Device and method for controlling a d.c. voltage

The motor has an output stage (122) and a measuring resistor (242) detecting measuring value for the current flowing into the stage. An over-current measuring unit (152) evaluates the valve and detects the current exceeding a given threshold value. A hold unit generates and stores an over current signal in the measuring resistor and conveys a corresponding signal to the stage to counteract the over-current. An independent claim is also included for a method of controlling an electronically commutated motor.

Electronically comutated motor and method for controling an electronically comutated motor

A mixed-flow fan features a housing ( 42 ); an impeller ( 43 ) journaled rotatably with respect to the housing, and equipped with fan blades ( 54 ); a generally cylindrical air conduit ( 50 ) defined between the fan housing and the impeller, the fan blades extending into the air conduit in order, during operation, to transport air; an external-rotor motor ( 75 ) having an internal stator ( 100 ) and an external rotor ( 74 ) which includes a tubular ferromagnetic yoke ( 63 ) partly embedded in material of the impeller. A cup-shaped yoke ( 72 ) fits into a central cavity ( 68 ) of the tubular yoke ( 63 ) and accommodates a permanent magnet arrangement ( 66 ) which interacts with the stator. The tubular yoke ( 63 ) and the cup-shaped yoke ( 72 ) together serve as a magnetic return path for the external-rotor motor. The structure minimizes damage during final assembly, and simplifies insertion of balancing weights.

Mixed flow fan

An electronically commutated motor comprises a rotor ( 208 ); a stator ( 201 ) electromagnetically interacting with the rotor ( 208 ), which stator is formed with a stator winding ( 202, 204, 206 ); a power stage ( 122 ) controlling the currents flowing in the stator winding ( 202, 204, 206 ) during operation; at least one current measuring element ( 242, 244 ) for sensing a measured value for the currents (I_UPPER, I_LOWER) flowing in the power stage, and an overcurrent measuring element ( 152, 162 ) for evaluating an associated measured value and for sensing a current whose absolute value exceeds a predetermined limit value (I_MAX_UPPER, I_MAX_LOWER); a holding element ( 154, 164 ) associated with the overcurrent measuring element ( 152, 162 ), configured, when an overcurrent occurs in the associated current measuring element ( 242, 244 ), to generate an overcurrent signal (OC_UPPER, OC_LOWER), to store the signal, and to deliver a signal to the power stage ( 122 ).

Electronically commutated motor (ecm) and method of controlling an ecm

The invention relates to a fan. Said fan has a drive motor with a fan rotor, an apparatus for generating a rotation-speed signal (n i) which characterizes the rotation speed of the fan rotor, an apparatus for generating a power signal (P_i) which characterizes the power which is consumed by the drive motor; a first regulator(n_RGL) for regulating the rotation-speed signal (n i) at a predefined setpoint rotation-speed value (n_s); a second regulator (P RGL) for regulating the power signal(P_i) at a predefined setpoint power signal value (P_s) which corresponds to a predefined minimum consumption power (P_min), wherein the first regulator (n_RGL) and the second regulator (P_RGL) output at least one actuation value (SW) to the drive motor and interact in such a way that, during operation, the at least one actuation value (SW) is determined by the first regulator (n_RGL) in a first state; and is determined by the second regulator (P_RGL) in a second state, wherein a first change is made from the first state to the second state when the consumed power is lower than the minimum consumption power (P_min).

Harald Schmid

Papers

Device and method for controlling a d.c. voltage

Electronically comutated motor and method for controling an electronically comutated motor

Mixed flow fan

Electronically commutated motor (ecm) and method of controlling an ecm

Rotation-speed-controlled fan with control of the power consumption of the electric motor