199 results about "Electrical ballast" patented technology

A ballast dispenser system and method for flight vehicles, such as high altitude lighter than air vehicles. The system passively retains ballast without power and deploys ballast in response to applying power. An electro-permanent magnet passively retains ballast within the dispenser. Application of power to a coil produces an opposing magnetic field that reduces the overall strength of a net magnetic field acting on the ballast. Lateral positional control of the electro-permanent magnet provides calibration and control of the retaining magnetic field strength. A collapsible silo may hold ballast prior to dispensing ballast and collapse upon landing for minimizing damage.

A solid-state light replacement includes a housing, a pair of electrical connections on the housing, a substrate within the housing and dividing the housing into at least two sections, at least one solid state light mounted to the substrate in one of the at least two sections and electrically connected to the pair of electrical connections, and at least one solid state installation error indicator light mounted to the substrate in another of the at least sections and electrically connected to the pair of electrical connections in an opposite polarity from the connection of the at least one solid state light to the pair of electrical connections.

An LED lamp arrangement (100) for replacing a fluorescent lamp in a luminaire having an electronic ballast. The LED lamp arrangement (100) has a plurality of LEDs (101, 102, 103), an SVM reduction circuit (110) having an energy storage device connected across the plurality of LEDs (101, 102, 103), and a measurement and control circuit (120) adapted to measure the current drawn from the electronic ballast and generate an output to the SVM reduction circuit (110). Based on said output, the measurement and control circuit (130) is configured to activate the SVM reduction circuit (110) when the current drawn from the electronic ballast exceeds a threshold, and deactivate the SVM reduction circuit (110) when the current drawn from the electronic ballast does not exceed the threshold.

A power rail retention system includes a heated bracket assembly for supporting conducting power rails. Power rails carrying different voltages supplied by a substation rest on a support plate that includes grooves configured to accept lower sections of angled clips. Upper sections of the clips frictionally hold the power rails against the support plate. A resistor is coupled between the lower sections of at least two conductive clips and is positioned proximate a top edge of the support plate between adjacent rails. When the rails are energized, current flows through the resistor, which may generate ambient heat to evaporate moisture on the support plate, power a light source on the bracket, and provide a ballast load for the substation.

Embodiments are directed to a lighting system including a junction box for accommodating a light source assembly, and which is configured to allows for additional components such as separate drivers or emergency ballasts to also be included in the lighting system together with the light source assembly. In embodiments, the junction box is mounted on a pan style frame. In some embodiments, the lighting system includes a test switch mounted on a trim piece that is accessible from below a ceiling in which the lighting system is installed, and which allows for an emergency power supply to be verified.

A ballast transformer and system using the ballast transformer to couple power to a plasma load. The ballast transformer has a magnetic core, a first primary winding on a primary side of the magnetic core, a secondary winding on a secondary side of the magnetic core, and a second primary winding connected in series with the first primary winding and wound in proximity to the secondary winding on the secondary side of the magnetic core. The first primary winding is connectable to the AC power source, and the secondary winding is connectable to the plasma load via a coaxial cable.

An apparatus for retrofitting an HID lighting system includes using existing components of a previously installed HID lighting system, such as a ballast thereof, while replacing some capacitors to regulate the power supplied to the retrofit LED lighting fixture. The unused ballast driver is removed and the independent ballast driver assembly is installed into the electronic control housing of the previously installed lighting system. Some retrofit LED lighting fixtures include upward illumination lenses, optics, or diffusers for providing upward illumination. The aiming support and the aiming plate can be used for setting the horizontal aiming angle of the lamp.

An apparatus for retrofitting a HID lighting system includes using existing components of previously installed HID lighting systems such as its ballasts while replacing some capacitors to adjust the power supplied to a retrofit LED luminaire. Unused ballast drivers are removed, and a self-contained ballast driver assembly is mounted into the electronic control enclosure of the previously installed lighting system. Some of the retrofit LED luminaires include an uplighting lens, an optic, or a diffuser for providing uplight. An aiming bracket and an aiming plate allow for the horizontal aiming angle of a light luminaire to be set.

A light fixture includes a lighting module and a ballast. The ballast includes a housing and a power module. The housing includes a front cover and a rear cover. The front cover includes a front wall and upper fins and lower fins that extend from the front wall. The rear cover includes a rear wall and first fins and second fins that extend from the rear wall. The power module includes a plurality of heat generating semiconductor components that are thermally coupled with the rear wall to facilitate cooling thereof.

The invention relates to the technical field of lamps, in particular to an indoor atmosphere projection lamp which comprises an outer lampshade, an inner lampshade integrally formed by an upper part and a lower part is arranged in the outer lampshade, a gap is formed between the inner lampshade and the outer lampshade, a light-transmitting plate is arranged at the bottom of the inner lampshade, and a lamp holder assembly is arranged in the inner lampshade. And a circulating system is arranged at the top of the lamp holder assembly. The ballast is arranged on the circulating water path, an external plugging mode is adopted, the ballast can be rapidly replaced, abutting force is applied to the ballast in a water flow circulating mode, connection stability is guaranteed, the fault rate can be reduced, and when flowing water passes through the transparent channel, the ballast can be rapidly replaced. According to the technical scheme, rhinoceros light rays can be sharpened, so that the light rays are softer and cozy in a room, and the light rays are cozy and dynamic in the stable working environment of the lamp beads under the condition of depending on the lamp beads.

An apparatus for retrofitting a HID lighting system includes using existing components of previously installed HID lighting systems such as its ballasts while replacing some capacitors to adjust the power supplied to a retrofit LED luminaire. Unused ballast drivers are removed, and a self-contained ballast driver assembly is mounted into the electronic control enclosure of the previously installed lighting system. Some of the retrofit LED luminaires include an uplighting lens, an optic, or a diffuser for providing uplight. An aiming bracket and an aiming plate allow for the horizontal aiming angle of a light luminaire to be set.

The invention discloses a light source driving circuit, a light source driving device and a lamp. The light source driving circuit comprises an input matching module, a voltage rectifying module, an input filtering module, a ballast matching module, a mode control module, a voltage regulating module and a feedback module. The ballast matching module can be controlled through the mode control module according to the type of the connected power supply. Under the condition that the light source driving circuit is connected to the ballast, the ballast matching module can bypass the input filtering module which affects power supply of the ballast, and the mode control module can release electric energy on the direct current bus through the ballast matching module, so that large current provided by the ballast is prevented from damaging related circuits. Meanwhile, voltage regulation is carried out through the voltage regulation module, so that the device can adapt to alternating current power supplies and ballasts with different voltages, and required output voltage is obtained. And finally, the compatibility of the AC power supply with the quick-start ballast, the ECG and the CCG is realized.

The utility model relates to the technical field of electronics, and discloses a quick-connection type novel electronic ballast which comprises a mounting seat, a ballast body is arranged at the top of the mounting seat, a connecting sleeve is fixedly connected to one side of the ballast body, a limiting groove is formed in the connecting sleeve, a release assembly is arranged in the connecting sleeve, and the release assembly is fixedly connected with the mounting seat. A clamping piece is arranged in the connecting sleeve, the outer wall of the clamping piece is fixedly connected to the interior of the limiting groove, a contact piece is fixedly connected to the interior of the connecting sleeve, a protruding strip is fixedly connected to the inner wall of the contact piece, a copper core is arranged in the connecting sleeve, and the copper core is attached to the outer wall of the contact piece. According to the utility model, through cooperation among the clamping sheet, the release sleeve, the connecting sleeve, the contact sheet and the raised line, an effect of fixing the cable is achieved, a problem of poor contact caused by easy displacement of an internal copper core and a ballast terminal when an electric wire is pulled is solved, and use safety of the ballast is guaranteed.

The utility model discloses a ballast cabinet for a photocatalytic reactor, which comprises a cabinet body, the surface of the cabinet body is provided with a ventilation assembly for improving the heat dissipation effect of the ballast cabinet, and the inner wall of the cabinet body is provided with a convenient assembly for improving the disassembly and maintenance efficiency. A support assembly used for providing stability for the ballast is installed on the inner wall of the convenient assembly. According to the utility model, through the synergistic effect of all structures of the convenient assembly and the support assembly, when the ballast needs to be maintained or replaced, the ballast can be quickly disassembled easily through simple operations such as opening the anti-falling cover and unfastening the hook; therefore, the maintenance time is greatly shortened, and the production efficiency is improved; through the synergistic effect of all structures of the support assembly, stable and reliable support is provided for ballasts, meanwhile, adjustment can be conducted according to ballasts of different models and sizes, and therefore the universality of the ballast cabinet is improved.

An energy storage device for storing energy generated from operation of a work vehicle includes a ballast providing ballast weight to the work vehicle, a stator of an electric machine mounted on the work vehicle, a rotor of the electric machine fixed for rotation with the ballast, spaced from the stator by a gap, and configured for rotation relative to the stator such that the electric machine is configured to generate electrical current from rotation of the rotor and the ballast relative to the stator and to rotate the rotor and the ballast from electrical current received by the electric machine, and a gap modulator coupled to at least one of the stator and the rotor and configured to selectively adjust the gap between the rotor and the stator based on an operation of the electric machine.

The utility model belongs to the technical field of circuits, and particularly relates to an electronic ballast input end anti-surge and electromagnetic compatibility suppression circuit which comprises a first protection element, the outer side of the first protection element is connected with an L connecting end through a wire, and the outer side of the first protection element is connected with a first piezoresistor through a wire. The outer side of the first piezoresistor is connected with an N connecting end through a wire, and the outer side of the first protection element is connected with a second piezoresistor through a wire. According to the utility model, the problem that other filter circuits are poor in universality can be solved, the electromagnetic interference suppression level and safety of a system can be improved, the circuit can be prevented from being impacted by surge, so that the product can operate safely, repeated design can be avoided, selected material models can be reduced, and the cost of the whole circuit can be reduced.

An LED lamp arrangement (100) for replacing a fluorescent lamp in a lighting device equipped with an electronic ballast is provided. The LED lamp arrangement (100) comprises a plurality of LEDs (101, 102, 103), an SVM reduction circuit (110) comprising an energy storage device connected across the plurality of LEDs (101, 102, 103), and a metrology circuit (120) adapted to measure a current drawn from the electronic ballast and to generate an output to the SVM reduction circuit (110). Based on the output, the measure and control circuit (120) is configured to activate the SVM reduction circuit (110) when the current drawn from the electronic ballast exceeds a threshold and to deactivate the SVM reduction circuit (110) when the current drawn from the electronic ballast does not exceed the threshold.

The utility model discloses a rotatable track projection lamp which comprises a projection lamp track and a projection lamp body, a wire layer and a conductive layer are arranged in the projection lamp track, a metal strip fixing piece and a conductive metal strip are arranged in the conductive layer, the projection lamp body comprises a control box body and a projection lamp body, a lamp body driving circuit board and a ballast are arranged in the control box body, and the lamp body driving circuit board is connected with the control box body. A sliding groove is formed in the top of the control box body, an insulating pressing piece is slidably connected into the sliding groove, conductive copper sheets are arranged on the two sides of the insulating pressing piece, and the conductive copper sheets are matched with the conductive metal strips; according to the project lamp, the insulating pressing piece is continuously pressed, so that the two side parts of the insulating pressing piece are driven, the project lamp body can be taken out from the project lamp track, the dismounting convenience of the project lamp body is improved, and a worker can check and wipe the conductive copper sheet in daily maintenance.

To change the weight of a derrick ballast in a simple, fast and flexible manner.SOLUTION: A derrick ballast 20 comprises at least two ballast element groups 25 which may be stacked on top of each other and a cross member 30 connected to the derrick boom 18 by a ballast bracing 19 and connected to the upper rotating body by guides 11. According to the present invention, the cross member may be connected to the stack of the ballast element group by at least one retaining element. The retaining element has first connection means for removably connecting the retaining element to second connection means of the ballast element group composing the stack, and may be connected to a part of the stack of the ballast element group composing the stack by moving the retaining element and / or the cross member with respect to the unconnected stack.SELECTED DRAWING: Figure 1

This invention relates to the field of electronic circuit technology, specifically to a ballast-based dimming switch circuit and dimming method, including a rectifier module, a first buck module, a second buck module, a sampling module, a control module, an energy storage inductor L1, a freewheeling diode D2, a filter capacitor E2, and a switching transistor T2. This invention uses the control module to control the PWM duty cycle to adjust the ballast output voltage, and simultaneously adjusts the PWM duty cycle by detecting the ballast output voltage, ensuring precise ballast output voltage at each level, thereby achieving dimming.

1. Name of the designed product: electronic ballast shell. 2. Use of the designed product: the designed product is used for packaging electronic ballast. 3. Design points of the designed product: the shape of the product. 4. Picture or photo best indicating the design points: perspective view.

The utility model relates to the field of electronic control boards, in particular to an integrated ballast electronic control board, which comprises a circuit board. The circuit board heat dissipation device comprises a circuit board, a heat dissipation base, telescopic frames, a rotary knob, a screw rod, a first sliding installation block and a heat dissipation installation plate, the heat dissipation base is arranged at the edge position of the front surface of the circuit board, the telescopic frames are installed on the upper face and the lower face of the heat dissipation base, and the rotary knob is arranged on the left surface of the telescopic frame on the upper side. The right surface of the interior of the upper telescopic frame is rotationally connected with one end of a screw rod, and the right surface of the knob penetrates through the left surface of the upper telescopic frame to be connected with the other end of the screw rod; the rotary knob is arranged, the screw rod is driven to rotate when the rotary knob is rotated, due to limitation of the telescopic frame, the first sliding installation block can be driven to move left and right when the screw rod rotates, and the heat dissipation installation plate is driven to move left and right when the first sliding installation block moves. Therefore, the purpose of quickly opening the outer shell of the circuit board without dismounting is achieved.

The utility model relates to the technical field of electronic ballasts, in particular to an electronic ballast with a protection device, which comprises a ballast main body, side frames are arranged at two ends of the ballast main body, a connecting frame is connected between the side frames, and a side plate is fixedly connected outside the connecting frame. The ballast comprises a ballast main body, the ballast main body is provided with side plates, the outer portions of the side plates are detachably connected with a first protection assembly, a connecting assembly is arranged between the connecting frame and the side frames, the outer portion of the connecting assembly is provided with a second protection assembly, and an adjusting protection assembly is arranged above the side frames and connected with the side plates. The ballast main body is connected through the connecting frame, then the periphery of the ballast main body can be protected through the arrangement of the first protection assembly, the second protection assembly and the adjusting protection assembly, impact generated by collision can be buffered even if the ballast main body is collided, and safety of internal parts of the ballast main body is guaranteed.

The utility model relates to a mercury lamp power supply device for a tester. The mercury lamp power supply device comprises an electronic trigger, a ballast and a relay, a first end of a normally open contact of the relay is electrically connected with one end of the power supply end, a second end of the normally open contact of the relay is electrically connected with a first end of the ballast, and a coil of the relay is electrically connected with the tester control end; the second end of the ballast is electrically connected with the first end of the load; the first end of the electronic trigger is connected to a line between the second end of the ballast and the first end of the load, the second end of the electronic trigger is electrically connected with the first end of the load, and the second end of the load is electrically connected with the other end of the power supply end. According to the mercury lamp power supply device for the tester, the overall structure is simple, maintenance is easy, the success rate of lightening the mercury lamp is high, and voltage and current provided for the mercury lamp after lightening are stable.

The utility model relates to the technical field of ballasts, in particular to a ballast abnormity protection circuit, which respectively samples filament current signals and ballast output voltage signals by arranging a current protection circuit and a voltage protection circuit, and outputs the output voltage signals through the design of internal logic and time sequence of the protection circuit. The lamp tube monitoring circuit can monitor and effectively protect abnormal states such as a rectification effect caused by short circuit, open circuit, tube separation, filament breakage, overload, service life, gas leakage and filament single-end inactivation of a ballast and a lamp tube, retains the original protection function of a chip, additionally designs the lamp tube monitoring circuit, compensates for the short circuit of the original protection function of the chip, and improves the reliability of the lamp tube monitoring circuit. And more comprehensive abnormal state protection can be carried out on the ballast.

An apparatus for retrofitting a HID lighting system includes using existing components of previously installed HID lighting systems such as its ballasts while replacing some capacitors to adjust the power supplied to a retrofit LED luminaire. Unused ballast drivers are removed, and a self-contained ballast driver assembly is mounted into the electronic control enclosure of the previously installed lighting system. Some of the retrofit LED luminaires include an uplighting lens, an optic, or a diffuser for providing uplight. An aiming bracket and an aiming plate allow for the horizontal aiming angle of a light luminaire to be set.

A ballast dispenser system and method for flight vehicles, such as high altitude lighter than air vehicles. The system passively retains ballast without power and deploys ballast in response to applying power. An electro-permanent magnet passively retains ballast within the dispenser. Application of power to a coil produces an opposing magnetic field that reduces the overall strength of a net magnetic field acting on the ballast. Lateral positional control of the electro-permanent magnet provides calibration and control of the retaining magnetic field strength. A collapsible silo may hold ballast prior to dispensing ballast and collapse upon landing for minimizing damage.

The utility model belongs to the technical field of electronic ballasts, and particularly relates to a high-power high-frequency electronic ballast circuit with a frequency jittering technology, which comprises a frequency jittering circuit, a half-bridge driving circuit and a half-bridge inverter circuit. A first pin of the first chip is connected with a positive power source through a wire, a sixth pin of the first chip is connected with a first resistor through a wire, and the half-bridge inverter circuit comprises a first MOS tube, a second MOS tube, a fourth capacitor, a fifth capacitor, a first inductor and a sixth capacitor. According to the utility model, the technology is combined with a single-chip microcomputer chip, the cost is low, the circuit is simple, and the frequency of the high-power high-frequency electronic ballast is easy to modulate.

1. Name of the Design Product: Ballast Box (uv). 2. Use of the Design Product: An outer box for placing a ballast. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

A circuit for an HID electronic ballast to drive an LED comprises a transformer T, a full-bridge rectifier module, a valley filling module and a filtering module, the transformer T is provided with a primary winding and a secondary winding, the primary winding of the transformer T is connected with the output end of the electronic ballast, the full-bridge rectifier module is connected with the secondary winding of the transformer T, the valley filling module is connected with the filtering module in parallel, and the filtering module is connected with the full-bridge rectifier module. The full-bridge rectification module is respectively connected with the valley filling module, the filtering module and the load LED lamp, a primary winding of the transformer T is provided with a dotted terminal and a non-dotted terminal, the dotted terminal of the primary winding is connected with the electronic ballast through a capacitor CX1, and the non-dotted terminal of the primary winding is directly connected with the electronic ballast. According to the utility model, the input current follows the input voltage, the PF value of the product is improved, the utilization efficiency after alternating current is converted into direct current is improved, and the impact of the product on a power grid and a post-stage circuit is reduced.