Patent classifications
H01F19/08
METHODS, APPARATUS, AND ARTICLES OF MANUFACTURE TO COMMUNICATE MULTIPLE SIGNALS OVER AN ISOLATION CHANNEL
An example apparatus includes a first die having a first terminal. The apparatus includes a second die having a second terminal. The apparatus includes an isolation channel coupled between the first terminal of the first die and the second terminal of the second die. The apparatus includes control circuitry disposed on the first die, the control circuitry to cause transmission of a power signal over the isolation channel and at least one of cause transmission of a control data signal over the isolation channel or detect a feedback data signal over the isolation channel. Other examples are described.
METHODS, APPARATUS, AND ARTICLES OF MANUFACTURE TO COMMUNICATE MULTIPLE SIGNALS OVER AN ISOLATION CHANNEL
An example apparatus includes a first die having a first terminal. The apparatus includes a second die having a second terminal. The apparatus includes an isolation channel coupled between the first terminal of the first die and the second terminal of the second die. The apparatus includes control circuitry disposed on the first die, the control circuitry to cause transmission of a power signal over the isolation channel and at least one of cause transmission of a control data signal over the isolation channel or detect a feedback data signal over the isolation channel. Other examples are described.
Magnetically immune gatedriver circuit
An electric power converter includes an electric gatedriver circuit that includes a transformer. The transformer includes separate first and second cores of magnetically conductive material that are shaped to form respective closed loops. The transformer also includes a first electrical conductor with at least one winding arranged around a part of the first core in a first winding direction and at least one winding arranged around a part of the second core in a second winding direction opposite the first winding direction. The transformer further includes a second electrical conductor with at least one winding arranged around a part of the first core in the first winding direction and at least one winding arranged around a part of the second core in the second winding direction so as to counteract electric influence induced by a common magnetic field through the closed loops of the first and second cores.
Magnetically immune gatedriver circuit
An electric power converter includes an electric gatedriver circuit that includes a transformer. The transformer includes separate first and second cores of magnetically conductive material that are shaped to form respective closed loops. The transformer also includes a first electrical conductor with at least one winding arranged around a part of the first core in a first winding direction and at least one winding arranged around a part of the second core in a second winding direction opposite the first winding direction. The transformer further includes a second electrical conductor with at least one winding arranged around a part of the first core in the first winding direction and at least one winding arranged around a part of the second core in the second winding direction so as to counteract electric influence induced by a common magnetic field through the closed loops of the first and second cores.
Inverted leads for packaged isolation devices
A packaged multichip isolation device includes leadframe including a first and second die pad, with a first and second lead extending outside a molded body having a downward extending lead bend near their outer ends. A first integrated circuit (IC) die on the first die pad has a first bond pad connected to the first lead that realizes a transmitter or receiver. A second IC die on the second die pad has a second bond pad connected to the second lead that realizes another of the transmitter and receiver. An isolation component is in a signal path of the isolation device including a capacitive isolator, or inductors for transformer isolation on or between the die. A midpoint of the thickness of the die pad is raised above a top level of the leads and in an opposite vertical direction relative to the downward extending bend of the external leads.
PLANAR TRANSFORMER WITH IMPROVED RELIABILITY
Galvanic insulation device includes an upper coil in a first insulating layer; a lower coil in a second insulating layer; a galvanic insulation region extending between the first and the second insulating layers; and a first conductive via. Each of the upper coil and the lower coil includes turns, a first electrical contact region and a second electrical contact region, electrically coupled to the turns. The first conductive via is coupled to a first structural portion of the lower coil (2b), coupled to the turns or to the first or second electrical contact region. The first structural portion includes a first stress dissipation region having a curved shape and misaligned to the upper coil.
Isolator
According to one embodiment, an isolator includes a first electrode, a second electrode, a conductive body, and a first insulating layer. The second electrode is provided on the first electrode and separated from the first electrode. The conductive body is provided around the first and second electrodes along a first plane perpendicular to a first direction. The first direction is from the first electrode toward the second electrode. The first insulating layer is provided on the second electrode. The first insulating layer includes silicon, carbon, and nitrogen.
Isolator
According to one embodiment, an isolator includes first and second electrodes, first and second insulating portions, and a first dielectric portion. The first insulating portion is provided on the first electrode. The second electrode is provided on the first insulating portion. The second insulating portion is provided around the second electrode along a first plane perpendicular to a first direction. The second insulating portion contacts the second electrode. The first dielectric portion is provided between the first and second insulating portions. At least a portion of the first dielectric portion contacts the second electrode and is positioned around the second electrode along the first plane. A distance between a lower end of the second electrode and a first interface between the first dielectric portion and the second insulating portion is less than a distance between the first interface and an upper end of the second electrode.
LOW NOISE AMPLIFIER INCORPORATING SUTARDJA TRANSFORMER
A LNA comprises an input, a transformer structure and a first transistor and a second transistor, each having with gate, source, and drain terminals. The transformer structure has a first winding pair, a second winding pair and a third winding pair. Each winding of the first winding pair connects to the input node and one source terminals of the transistors. The second winding pair is proximate the first winding pair. The second winding pair connects to a ground node and the transistor source terminals. The third winding pair is proximate the first winding pair and it connects to a bias signal source and a gate terminal of the transistors. An output connects to the transistor drain terminals. The winds of the first and second winding pairs are off set and rotated 180 degrees with respect to the other winding in the pair. The third winding performs a Gm boost function.