Abstract: An illuminating device includes a first light source unit emitting illumination beams with a first optical axis; a second light source unit; and two reflecting elements arranged on both sides of an optical path of the first light source unit. The reflecting element arranged on the side of the second light source unit reflects the illumination beams emitted from a substantially half region on one side in an aperture plane of the parabolic reflector of, the second light source unit, towards the direction along the first optical axis. The reflecting element arranged opposite to the second light source unit reflects the illumination beams emitted from a substantially half region on the other side in the aperture plane of the parabolic reflector of the second light source unit, towards the direction along the first optical axis.

Abstract: The invention relates to an improved patterned decoration with shining structures, which includes a lot of bulbs on the decoration. A lot of shining sets including reflective pieces are also provided on the decoration. Hence, the bulbs and the swinging reflective pieces can emit rays outward at the same time that obtains a perfect decorative shining effect without increasing use of bulbs.

Abstract: A ship-borne searchlight comprising a lamp housing, a reversible motor installed on the lamp housing, a movable cover pivotally connected to the lamp housing and a lamp mounted on back side of the movable cover, wherein the movable cover has a sector block formed on its back side and a ring gear further formed on lower circumference of the sector block to engage a driving gear inside the lamp housing, so that by controlling the reversible motor the driving gear shall rotate in clockwise or counter clockwise direction to enable a movement of open-up or close-down of the movable cover relative to the lamp housing to vary the direction of light beam of the lamp; particularly, when the ship-borne searchlight is not in use, the lamp shall be kept inside the lamp housing to save space taken up by the searchlight.

Abstract: A light-emitting device for bathroom containers is disclosed. Two contiguous and separated rooms are arranged in a main body of bathroom containers. A first room can be see-through from outside and has a plurality of irregular refraction surfaces while the second room is arranged with electronic components including a LED(light-emitting diode) circuit, a battery holder, a vibration switch and a plurality of LEDs whose light is projected into inner space of the first room. When the container is used and having vibration, the LED is turned on by the vibration switch so that light emits from the LED and projects into the inner space of the first room and colorful dynamic reflective light is displayed outwards. Therefore, the novelty as well as decorative effect of the bathroom,containers is increased.

Abstract: In a grid screen for illumination devices, the honeycomb grid disc (5) is provided in the component (4) and is provided with a punched-out aperture (9). Fastening the grid screen is made possible by means of spring clips (10) which are in each case fixedly connected on both sides to the peripheral component (4) and whose cranked clip ends (11), which are directed towards the middle and rotated by 90°, reach through the punched-out middle aperture (9) of the honeycomb grid disc (5) and hook under the web (3) of the illumination device. Keyhole-type cutouts (8) on both sides at the aperture (9) are slipped over the web (3) in a contactless manner, the grid screen pressing onto the rim (7) of the reflector lamp (1) on account of the hooked-in spring clips (10). The deeply situated annular honeycomb grid disc (5) absorbs the glare rays (12) emerging underneath the cap (2), reflected useful rays (15) being passed through the honeycomb grid disc (5).

Abstract: An assembled structure of a large-sized LED lamp includes a substrate. One surface of the substrate is provided with a plurality of LED modules. Each LED module comprises a circuit board and a plurality of LEDs fixedly connected to the circuit board. A lamp mask is locked onto the substrate to cover and protect the LED modules. A sealing material is provided between the lamp mask and the substrate to protect the permeation of liquid. Further, at the positions of the other surface of the substrate, heat-dissipating modules are provided to correspond to each LED module, respectively. The heat-dissipating modules are used to dissipate heat generated from the LEDs. A lamp cover is covered to the exterior of the heat-dissipating modules. The lamp cover is locked onto the substrate. With the modulization of each constituent element, the detachment, assembly and repair of the present invention can be much simpler and more convenient.

Abstract: A method for combining a LED lamp and a heat dissipator and a combination structure thereof A heat-conducting plate is mounted on the LED lamp. The heat-conducting plate is used for being detachably assembled with a heat dissipator. Elements such as screws, bolts, locking tools or rivets can be used to achieve the assembly. Therefore, when a disassembling operation is to be performed, with the disassembly of the above detachable elements, the LED lamp and the heat dissipator can be separated from each other without getting damaged due to the disassembly.

Abstract: A lighting device (1) comprises a lamp unit (10) for emitting light, a reflector (20) for reflecting the emitted light, and a housing (30) for accommodating both the lamp unit (10) and the reflector (20). Much heat is generated by the lamp unit (10) during operation of the device (1) if the lamp unit (10) comprises a lamp operating at a high power level, such as an ultra high performance lamp, which heat needs to be dissipated to the environment of the lighting device (1). For this purpose, the lighting device (1) is provided with a heat sink (40) arranged between the reflector (20) and the housing (30), which heat sink is thermally coupled to both the reflector (20) and the housing (30). The heat sink (40) comprises metal strips (42) which surround the reflector (20).

Abstract: A light source device for a projector includes a light source unit and a heat dissipation unit. The light source unit includes a circuit board, and a plurality of light emitting diodes mounted on and in front of the circuit board and arranged in an array. The heat dissipation unit includes a metal mounting seat permitting the circuit board to be mounted thereon for thermal contact therewith, and a heat-dissipating module connected to the metal mounting seat for dissipating heat from the metal mounting seat.

Abstract: The invention relates to a reflector, in particular for discharge luminaires, in the case of which at least two facets direct the light from an upper and a lower region of the discharge lamp in the same direction.

Abstract: A booster optic is provided in an LED light assembly that includes a primary reflective surface to redirect light towards a desired location to form an illuminance pattern that when combined with a first illuminance pattern, which is formed by only the primary reflector, provides a combined illuminance pattern having a more uniform illuminance characteristic as compared to not having the booster optic.

Abstract: A temporary lighting fixture comprising of a housing, a light-bulb socket positioned in the housing, a male electrical plug in electrical communication with the light-bulb socket, and a fastener operatively connected to the housing. The fastener is adapted to secure the housing to an extension cord.

Abstract: A lighting apparatus is provided including an array of light emitting diodes (LEDs) disposed on a base. The base is configured to move heat away from the array of LEDs to other portions of the base and further to the atmosphere or an adjacent housing. In one embodiment, a native oxide on the base electrically insulates the base from the LEDs. In another embodiment, a cover is removably disposed over the array of LEDs, and removal of the cover prevents electrical energization of the LEDs.

Abstract: A lamp fixing structure is arranged with a lamp which has an electrode and a wire electrically connected to the electrode. The lamp fixing structure includes a lamp holder and at least one lamp protecting member. The lamp holder has at least one pressing part. The lamp protecting member has a first hole. The lamp is inserted into the lamp protecting member. The wire passes through the lamp protecting member from the first hole. The pressing part presses the lamp protecting member so that the first hole is fitted to the wire tightly.

Abstract: A lamp holder including a supporting base; holding units to hold a light source, which are provided on one surface of the supporting base; and locking units to lock the supporting base in a predetermined position, which are provided on the other surface of the supporting base; and the holding units are provided at at least both ends of the supporting base, and the locking units extend outside the supporting base along a longitudinal direction of the supporting base at the both ends of the supporting base, the locking units comprising a first locking unit which is engageably inserted in a predetermined opening and an elastically deformable second locking unit which is a projecting unit shaped in an approximately oval shape projecting in a thickness direction of the supporting base and which is inserted in a predetermined through hole.

Abstract: A vehicular lamp assembly, such as a headlight, can be configured for attachment to a vehicle for providing illumination about the exterior of a vehicle. The lamp assembly can include a light source configured to emit light during use, a lens, first and second reflectors, and an actuator assembly. The first and second reflectors can be positioned to reflect light emitted from the light source through the lens and can be moveable with respect to the light source. The actuator assembly can be configured to move the first and second reflectors with respect to the light source in response to at least one control signal. The lamp assembly can be configured such that, during use, the first and second reflectors are positioned to reflect light from the light source through the lens. A vehicle including a control system and a headlight having multiple moveable reflectors is also provided.

Abstract: A headlamp includes a light source, a first auxiliary reflector disposed below a reflector, and a plurality of second auxiliary reflectors disposed on a front side of the first auxiliary reflector at a predetermined interval along a vertical direction. The light source is a line light source extending in a width direction of a vehicle. A sectional shape of a reflecting surface of the first auxiliary reflector taken along a vertical plane that is parallel to the optical axis is a shape of a parabola having an axis line downwardly extending in the forward direction at a predetermined downward inclination angle. A sectional shape of a reflecting surface of each of the second auxiliary reflectors taken along the vertical plane has a shape of a substantially straight line downwardly extending in the forward direction at a downward inclination angle which is smaller than the predetermined downward inclination angle.

Abstract: A projector-type vehicle headlamp includes a light source which is a line light source extending in a width direction of a vehicle, a reflector, a first auxiliary reflector disposed below the reflector, and a second auxiliary reflector disposed on a front side of the first auxiliary reflector. A sectional shape of a reflecting surface of the first auxiliary reflector taken along a vertical plane that is parallel to an optical axis is a shape of a parabola having an axis line downwardly extending in a forward direction a predetermined downward inclination angle with respect to the optical axis. A sectional shape of a reflecting surface of a second auxiliary reflector taken along the vertical plane is a straight line downwardly extending in a forward direction at a downward inclination angle which is smaller than the predetermined downward inclination angle.

Abstract: A reflector reflects a light from a light source. A projector lens projects a reflected light from the reflector ahead of a vehicle. A shade is used to switch the reflected light into a plurality of beams in a plurality of light distribution patterns. A spring member and a drive unit switch a position of the shade between an obliquely upward and backward position and an obliquely downward and forward position to obtain the light distribution patterns.

Abstract: A fiber bundle is provided which has various advantages: limitation in terms of heat-resistant temperature is less; its manufacturing is easy and low-cost; and it will not degrade the optical fiber properties. The fiber bundle 10, which transmits through element fibers 11 light incident from light sources and emits the light from the respective output surface 11A altogether, has a structure in which at least one end parts of the element fibers 11 are collectively inserted into a metal sleeve 12 and the one end parts are solidified to be united with the sleeve 12, and in which a metal 13, that is a filler, is filled among the element fibers 11, in the sleeve 12, over a region of a given length L in the longitudinal direction of the sleeve 12 from the emitting-end face 12A of the sleeve 12.

Abstract: The light projector of the invention includes a lamp, a full-ellipsoidal reflector and an elongated glass rod on an optical axis, with the light source at the primary focus and the proximal end of the glass rod at the conjugate focus. A transverse, infrared-reflecting, visible light transmitting mirror is disposed within the reflector at the mid-point of the optical axis between the primary focus and the conjugate focus. A preferred embodiment of the reflector has a proximal conical end and a conical distal end, a reflective surface within the reflector and an emissive exterior surface including cooling fins.

Abstract: An illumination system for producing light and for launching the light into a proximal end of an optical cable of an observation apparatus for endoscopy or microscopy has a light source having at least one LED. In addition, the illumination system has an optical light guiding element between the light source and the proximal end of the optical cable for introducing the light emitted by the light source into the proximal end of the optical cable, wherein a first end region of the optical light guiding element on a side facing the light source has a smaller cross-sectional area than a second end region of the optical light guiding element on a side facing the proximal end of the optical cable. Furthermore, the illumination system has a cooling apparatus which has at least one cooling body and which is thermally conductively connected to the light source in order to remove heat produced by the light source from the illumination system.

Abstract: A light emitting device includes a light source and a light guide body having a light guiding surface from which light emitted from the light source is received and having a light emitting surface from which the received light is emitted. A plurality of rows of light source allays each formed by a plurality of the light sources are provided on the light guiding surface.

Abstract: A planar light source device has a primary light source (1), a light guide (3) having a light incident surface (31) on which light emitted from the primary light source (1) is incident and a light emitting surface (33) for emitting light guided in the light guide, and a light deflector (4) opposed to the light emitting surface of the light guide. The light deflector (4) has a light input surface (41) to which light is inputted and a light output surface (42) which is disposed on the opposite side of the light input surface and outputs the inputted light. Elongated prisms each having two prism faces are arranged in parallel to each other on the light input surface (41). At least one of the two prism faces is a non-single planar surface. The vertex split angle ? of one of the prism faces is 2 to 25 degrees, and the vertex split angle ? of the other prism face is 33 to 40 degrees. The difference (|???|) between the vertex split angle ? and the vertex split angle ? is 8 to 35 degrees.

Abstract: An installation to upgrade light source efficiency includes a dimmer disposed to the backlight module at where in relation to the route the light from light source travels; and the dimmer is related to an optical structure that is totally permeable and/or reflects light to upgrade light source efficiency and more effectively distribute streams of light emitted by the light source by eliminating those dim and dark belts found between any two neighboring light sources in a more active and initiative means to solve problems of lower light source efficiency and creating those dim and dark band as found with the prior art.

Abstract: Disclosed herein is a backlight device. The device includes: a light emitting element; a lens having an incident surface on which light emitted by the light emitting element is incident, and an outgoing surface which has an ability to converge the light and from which the light incident on the incident surface goes out; a light guide plate having a light incidence plane and introducing through the incidence plane the light going out from the outgoing surface, so as to perform surface light emission; and a reflective member operative to reflect a portion of the light going out from the outgoing surface of the lens, toward the incidence plane of the light guide plate.

Abstract: In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.

Abstract: A backlight module includes multiple light sources and optical films; those optical films being disposed over those light sources to allow streams of light emitted from each light source radiate through those optical films to reach the expected performance of light source; those light sources being arranged in proper spacing; those diffusion films being arranged over those light sources in the same spacing of that for those light sources; and diffusion effects by those diffusion films reducing luminance over those light sources to correct the phenomenon of producing darker and brighter bands in the backlight module.

Abstract: Methods and systems are described for illumination in different applications. Real thin illumination systems (200) with good luminance uniformity, good efficiency and good colour mixing uniformity are obtained, even if different light sources emitting different colours are used. A plurality of light sources (102), emitting light from different colours, couple their light sideways, i.e. substantially parallel to the plane of light out-coupling, into a light guide (104) through recesses (108) distributed over the light guide (104). Providing a specially structured surface pattern (106), in combination with light in-coupling parallel to the plane of light out-coupling of the light guide (104) allows to obtain a good colour mixing of the differently coloured light originating from the plurality of light sources (102). The light then is only coupled out after it has been in the light guide (104) for a significant long time such that the light emanating from different light sources (102) is significantly mixed.

Abstract: An optical diffusion structure includes an optical diffusion structure comprising a plurality of convex portions and a plurality of concave portions. Each convex portion is adjacent to a plurality of concave portions and each concave portion is adjacent to a plurality of convex portions. The convex portions, the concave portions and each junction of the convex and concave portions have a curvature different from 0. The optical diffusion structure further includes a diffusion plate having a first surface, wherein the optical diffusion structure is formed on the first surface, and the convex portions are arranged in a two dimensional array along a first direction and a second direction, and the concave portions are arranged in a two dimensional array along a third direction and a fourth direction.

Abstract: A backlight (100) for a display comprises a planar light guide (102) through which light is guided by internal reflection. The light guide is provided with a first plurality of parallel structures (129) essentially along a first direction and a second plurality of parallel structures (122) provided essentially along a second direction, said second direction being substantially perpendicular to said first direction. The first plurality of structures are configured to direct light propagating along said second direction within the light guide, out of a face (110) of the light guide and the second plurality of structures are configured to direct light propagating along said first direction within the light guide, out of a face of the light guide.

Abstract: An optical sheet allowing light which has entered the sheet through a sheet back surface to exit the sheet through a sheet front surface on which a prism portion is provided, includes an optical function part provided on a sheet end face extending between a circumferential edge of the sheet back surface and a circumferential edge of the sheet front surface for preventing leakage light from exiting the sheet through the sheet end face to return the light back into the sheet.

Abstract: A light-beam direction conversion portion including two reflecting surfaces is provided in a light guide plate so that an end of each of the reflecting surfaces is brought into contact with a light input surface of the light guide plate. A traveling direction of a light beam from a light source is converted on each of the reflecting surfaces by total reflection, so an inner portion of the light guide plate has a uniform light beam distribution even in the case where a size of the edge area is small. Therefore, each of the reflecting surfaces is provided at an angle equal to or smaller than 20.02 degrees relative to the normal to a light emitting surface of the light source.

Abstract: The invention relates to a light redirecting film comprising a thin optically transparent substrate having opposite sides, one side of the substrate substantially covered by elongated individual optical elements whose longest dimensions are substantially aligned in a lengthwise direction, wherein the shape of at least some of the optical elements have a visually significant difference, and wherein the layout of optical element shapes and locations is such that objectionable patterns are not visible in the film under standard LCD backlight viewing conditions.

Abstract: The subject invention provides an optical film comprising a transparent substrate and a structured surface layer, wherein the structured layer is positioned on the upper surface of the substrate and comprises a plurality of non-parallel, adjacent columnar structures. The optical film according to the subject invention can effectively enhance the brightness of a liquid crystal display and reduce the optical interference.

Abstract: A method of using a cycloconverter switches a first switch of the first topology type to an on state after a magnitude of a current through an output inductor becomes less than a predetermined current threshold, and switches a second switch of the first topology type to an off state a first time after switching the first switch to the on state. The cycloconverter includes nodes on a first port, nodes on a second port, a switch pair coupled between a first node of the first port and a first node of the second port, a switch pair coupled between a second node of the first port and a first node of the second port, a switch pair coupled between a first node of the first port and a second node of the second port, and a switch pair coupled between a second node of the first port and a second node of the second port. Each switch pair includes a switch of each topology type.

Abstract: An ignition circuit and method, as may be used for igniting a gas discharge lamp, are provided. The circuit includes a voltage multiplier circuit connected to receive a signal corresponding to a DC bus voltage level from a rectifier circuit. The voltage multiplier circuit includes first and second voltage storing circuits configured to each respectively store a voltage level corresponding to a first multiple of the DC bus voltage level (e.g., at least twice the DC bus voltage level). The voltage multiplier circuit further includes a peak voltage holding circuit connected to the first and second voltage storing circuits to accumulate a voltage level corresponding to a second multiple of the DC bus voltage level (e.g., at least four times the DC bus voltage level).

Abstract: The invention provides a power converter and method for controlling same, comprising a plurality of switch elements, an inductive reactor, and at least two ports for the movement of electrical energy. Any energy-moving port may be made unipolar, bidirectional, bipolar, or bidirectionally bipolar. Ports may be equipped with sensing circuitry to allow the converter output to be controlled responsively to an input signal. The invention may be configured to be used in many ways, for example, as a power-supply, as an amplifier, or as a frequency converter. The invention may comprise energy predictive calculating means to obtain excellent transient response to line and load variations. The invention may also include a switch to create a low impedance path around the inductor to allow current to recirculate through the inductor when it is not needed at any of the ports.

Abstract: An inverter (1) with galvanic separation including a resonant converter (2) and an upstream mounted boost chopper (3) is intended to provide galvanic separation in the context of a variable input and output voltage as it exists in photovoltaic systems, with the efficiency being intended to be optimized over the entire input voltage range. This is achieved in that a boost chopper (3) or a buck chopper (4) is mounted upstream of the resonant converter (2).

Abstract: A resonance converter and a synchronous rectification driving method thereof are provided. The resonance converter includes a switch circuit having at least two first switches, a resonance circuit having a resonance frequency, a transformer, and a full-wave rectification circuit having two second switches each of which has a drain and a source and generates a channel resistance voltage when a current flows through the drain and the source. The synchronous rectification driving method includes steps as follow.

Abstract: A power supply device has a first node to which an input voltage is input, a second node, a third node from which an output voltage is output, a first switching circuit electrically connecting the first node and the second node and a resonance circuit electrically connecting the second node and the third node. The power supply device converts the input voltage into the output voltage through an intermediate voltage of the second node. A first timing circuit is operable to turn on and turn off the first switching circuit. When the intermediate voltage becomes equal to or larger than a first predetermined voltage, the first timing circuit turns on the first switching circuit after a first predetermined time period.

Abstract: Disclosed is a synchronous forward converter having a reverse current suppressor connected to the gate of a freewheel switch. The reverse current suppressor is configured to receive a control input signal generated by an internal circuitry of a power supply system where the forward converter locates, such as an enable signal, to detect the power-off of the forward converter, and in response thereto turn off the freewheel switch during the interruption of the input power of the forward converter. Alternatively, the reverse current suppressor is configured to detect the decay of the input voltage across the input bulk capacitor located on the primary side of a transformer of the forward converter, and turn off the freewheel switch when the voltage across the secondary side of the transformer is decayed to be smaller than the output voltage of the forward converter.

Abstract: A full bridge inverter includes a push/pull control chip outputting a first control signal and a second control signal. Each duty cycle of the two control signals is smaller than 50%. Moreover, both a first driver and a second driver are coupled to the push/pull control chip and a DC power. A full bridge switch assembly with four N-MOSes couples to the DC power, the first driver, the second driver and a transformer, and converts the DC power into an AC power by the first driver and the second driver. The AC power is transmitted to a first side of the transformer.

Abstract: Electrical power from an input voltage supply is converted to first and second output voltages of opposite polarities using a single inductor (L) and only four principal switches (S1, S2, S4, S6). In contrast to known circuits, none of the switches is exposed to voltages greater than the input voltage (V1). In a first type of charging cycle (FIG. 5(a)-(c)), the first output voltage (V2+) is obtained from the input voltage supply through the inductor. In a second type of charging cycle (FIG. 5 (d)-(f)), the second output voltage (V2?) is obtained from the first output voltage via the intermediate step of storing energy in the same inductor as is used in the first type of charging cycle. Auxiliary switches (S7a, S7b) can be operated in wait states between cycles of the first and second type.

Abstract: Multilevel high power converters, referred to as hexagram converters, which preferably include a combination of six three-phase converter modules, are provided herein. The three-phase converter modules are interconnected and can be configured as any three-phase converter for any given application. One or more inductors can be used in the interconnections between the six modules to suppress potential circulating currents. Numerous applications exist in which the described converters can be implemented.

Abstract: A ripple-free drive circuit for LED backlights of an LCD panel includes a PFC circuit, a DC/DC converter, three output load units, and a drive voltage resetter. The PFC circuit is connected with the mains power for outputting DC power. The DC/DC converter is connected with the PFC circuit. The three output load units are connected with the DC/DC converter for outputting red, green, and blue lights respectively, each having an electrically-controlled switch. The drive voltage resetter is connected with the DC/DC converter and the three output load units for preventing the three output load units from generation of surge current in a moment of electric conduction. In light of this, the ripple-free drive circuit is qualified as the drive power source of the LED backlights and can effectively isolate the surge current to prevent the surge current from entry into the output load units.

Abstract: Each time a system interconnection inverter is booted up, a control program, which is stored in a remote-controller, is downloaded and stored in a RAM in a main body side. When the system interconnection inverter is halted, the control program in the RAM is lost.

Abstract: The present invention provides an active compensation device that is connected between a power system and a non-linear load in parallel for providing an instantaneous compensation current for the non-linear load. The active compensation device comprises an electricity-storing unit, a bridge switching unit, and a controlling unit. The bridge switching unit is connected electrically with the electricity-storing unit for charging or discharging the electricity-storing unit; the controlling unit is used to produce control signals to switch the bridge switching unit. The electricity-storing performs a dual-direction current operation by means of switching the bridge switching unit to compensate the power system so as to increase instantaneously the current capacity.

Abstract: Circuit and method for converting a DC voltage, which is not constant over time and is preferably from a solar energy installation, into an AC voltage. The circuit arrangement has an input inductor and an H-bridge having a respective first current valve and a respective second current valve, preferably an RB-IGBT, for each branch, each current valve having a switchable forward direction and a reverse direction. A capacitor is additionally connected between the two branches of the AC voltage connection of the H-bridge. During operation, the RB-IGBTs of the H-bridge operate in a cyclical pulsed mode and are occasionally used as step-up converters together with the input inductor.

Abstract: A DC to AC power converter is disclosed. The power converter comprises four power-switching devices, two diodes, a step-up and isolation transformer, a capacitor-choke filter and a controller. Two power-switching devices located on the primary side of the transformer are switched to provide alternate cycles of an ac current to the primary side of the transformer, which magnetically couples the ac current to the secondary side of the transformer. Two power-switching devices on the secondary side of the transformer are switched to alternately allow the forward and return ac currents from the secondary side of the transformer in the output path to a load connected to the output of the DC to AC power converter.