Delta Electronics, Inc. , Delta, founded in 1971, is a global leader in power and thermal management solutions. Its mission statement, “To provide innovative, clean and energy-efficient solutions for a better tomorrow,” focuses the company’s role in addressing key environmental issues such as global climate change. As an energy-saving solutions provider with core competencies in power electronics and in innovative research and development, Delta's businesses encompass Power Electronics, Energy Management, and Smart Green Life. Delta has sales offices worldwide with manufacturing facilities and R&D centers in Taiwan, China, USA, Europe, Thailand, Japan, Singapore, India, Mexico and Brazil.Throughout its history, Delta has received many global awards and recognition for its business milestones, innovative technology and corporate social responsibility.Since 2011, Delta has been selected as a member of the prestigious Dow Jones Sustainability™ World Index for 4 consecutive years.In 2014, Delta was ranked at the highest A-level of the Climate Performance Leadership Index of the Carbon Disclosure Project , and it was the only company from Greater China to be named to the CPLI from nearly 2,000 listed companies. Wikipedia.
Delta Electronics Inc | Date: 2016-06-13
A display device is provided. The display device includes a projection lens, a Fresnel lens, an angle magnifying screen, a vertical diffuser and a first micro-deflector. The projection lens is configured to provide an original image. The first micro-deflector is provided between the Fresnel lens and the angle magnifying screen, and the angle magnifying screen is provided between the first micro-deflector and the vertical diffuser. The first micro-deflector is configured to redirect the original image into a first perspective image and a second perspective image. A perspective direction of the first perspective image differs from a perspective direction of the second perspective image.
Delta Electronics Inc | Date: 2016-04-28
A dimmable instant-start ballast for a plurality of LED lamps and/or a plurality of fluorescent lamps is provided, which includes an isolated dimming interface, a duty control device, a dimming switch, and an inverter circuit. The isolated dimming interface receives a dimming signal to generate a dimming voltage. The duty control device generates an operation signal according to the dimming voltage. The dimming switch periodically couples a first node to a ground according to the operation signal. The inverter circuit receives a rectified voltage and is coupled to the first node. When the first node is coupled to the ground terminal, the inverter circuit provides a lamp current for the LED lamps and/or the fluorescent lamps.
Delta Electronics Inc | Date: 2016-11-07
A converter module includes: a system board; and an isolated rectifier unit connected with the system board via at least one pin, the isolated rectifier unit including: a magnetic core including at least one core column parallel to the system board and two cover plates provided at both ends of the core column; and multiple carrier board units provided between the two cover plates and perpendicular to the system board, wherein the carrier board unit includes at least one via hole, at least one primary winding and at least one secondary winding; and wherein the at least one core column passes through the via hole of the carrier board unit, the pin is provided at one side of at least one of the carrier board units close to the system board and configured to connect the carrier board units with the system board.
Delta Electronics Inc | Date: 2016-09-29
A method for controlling modulation wave and a three-phase three-wire three-level circuit are provided. The method for controlling modulation wave is applied in the three-phase three-wire three-level circuit. Three bridge arms of the three-phase three-wire three-level circuit correspond to three modulation waves. The three-phase three-wire three-level circuit is controlled by comparing said three modulation waves and a carrier wave. The method for controlling modulation wave includes: obtaining a primary modulation wave from said modulation waves based on currents corresponding to each phase of the three-phase three-wire three-level circuit; and adding a shifting quantity to said three modulation waves such that the primary modulation wave is shifted to a peak value, a valley value, or a middle value between the peak value and the valley value of the carrier wave.
Delta Electronics Inc | Date: 2016-01-24
A single phase brushless DC motor comprises a Hall effect sensor, a coil assembly and a motor control circuit which generating a driving signal to guide a coil current flowing through the coil assembly. The Hall effect sensor senses the magnetic pole of the rotor to accordingly generate a Hall effect signal. The motor control circuit outputs a current polarity reverse signal according to the voltage at one end of the coil assembly. The time when the current polarity reverse signal is generated corresponds to the polarity reverse time of the coil current. The motor control circuit adjusts the phase of the driving signal according to the polarity reverse time of the Hall effect signal and the time when the current polarity reverse signal is generated to synchronize the phase of the back emf of the single phase brushless DC motor with the phase of the coil current.
Delta Electronics Inc | Date: 2017-01-18
A fan system, which is driven by any of an AC power source and a DC power source, includes a fan motor, a voltage stabilizing module and a driving circuit connecting to the fan motor. The voltage stabilizing module includes an input end and a voltage conversion unit. The input end is coupled to an AC power source or a DC power source, and the voltage conversion unit is coupled to the input end for receiving the inputted DC or AC power. The voltage conversion unit keeps the DC or AC power at a working voltage level, which acts as a voltage signal to be transmitted to the driving circuit. The driving circuit receives the voltage signal and drives the fan motor to rotate accordingly.
Delta Electronics Inc | Date: 2017-02-22
A converter includes a first bridge arm and a voltage clamping unit. The first bridge arm includes a first switching unit. The voltage clamping unit is coupled to the first bridge arm, and includes a first charging branch and a second charging branch. The first charging branch is configured to have a first resonant frequency, to absorb a first spike of the first switching unit. The second charging branch is configured to have a second resonant frequency to absorb a second spike of the first switching unit.
Delta Electronics Inc | Date: 2017-05-03
A power conversion device includes a casing, a middle plate and a converter module. The casing includes a base plate. The base plate has a concave recess therein. The base plate forms a base plate convex hull at a side opposite to the concave recess. The middle plate has a middle plate groove therein. The middle plate groove corresponds to the base plate convex hull. The middle plate and the base plate combine up, such that the base plate convex hull fluidly seals the middle plate groove, making the middle plate groove to form a first coolant channel. The converter module is at least partially located in the concave recess.
Delta Electronics Inc | Date: 2017-01-20
A power integrated module, including at least one first bridge formed in a chip, wherein the first bridge includes: a first upper bridge switch, formed by a plurality of first sub switches formed in the chip connected in parallel, and including a first, a second and a control end; a first lower bridge switch, formed by a plurality of second sub switches formed in the chip connected in parallel, and including a first, a second and a control end; a first electrode, connected to the first end of the first upper bridge switch; a second electrode, connected to the second end of the first lower bridge switch; and a third electrode, connected to the second end of the first upper bridge switch and the first end of the first lower bridge switch, wherein the first, the second and the third electrode are bar-type electrodes arranged side by side.
Delta Electronics Inc | Date: 2017-04-19
A power module (1, 8, 9) is disclosed including a substrate (7), a first sub-module (5), a second sub-module (6) and a circuit board (2). The semiconductor switches (50, 60) and the diodes (51, 61) of the first sub-module (5) and the second sub-module (6) are embedded within insulation layers (80). Consequently, the first sub-module (5) and the second sub-module (6) are formed as a high-voltage-side switching element and a low-voltage-side switching element of a bridge circuit. The first sub-module (5) and the second sub-module (6) are disposed on a first surface (730) of the substrate (7). An electrode (520) of the first sub-module (5) and some electrodes (620, 621) of the second sub-module (6) are electrically connected with corresponding conducting parts (21, 22, 24) of a circuit board (2). A heat sink (4) is disposed on a second surface (731) of the substrate (7).