77 results about "Electrical ballast" patented technology

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.

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 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.

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.

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 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.

The utility model discloses a kind of lamp tube electric leakage protection circuit, including power supply circuit, ballast driving circuit, mode detection circuit, LED circuit and ballast switch driving circuit;The output end of power supply circuit is connected with ballast driving circuit and LED circuit respectively, for accessing commercial power or ballast, and provide direct-current power to ballast driving circuit and LED circuit after rectification processing;Ballast driving circuit is connected with ballast switch driving circuit, for the input direct-current power voltage regulation processing is handled, and power supply signal is output to ballast switch driving circuit;Mode detection circuit is connected with the input end of power supply circuit, for detecting the power supply signal of power supply circuit access, and according to power supply signal switch control signal is output to ballast switch driving circuit;Ballast switch driving circuit is connected with LED circuit, for according to power supply signal and switch control signal control the working state of LED circuit. Adopt the utility model, can realize anti-leakage protection.

The lamp comprises an input for connection to a high frequency ballast for a gas discharge lamp. A power supply unit derives power from an LED on voltage of the LED of the lamp, and the power supply unit powers a disconnector at the input. During a preheat phase of the ballast, the power supply unit does not close the disconnector, but when the high frequency ballast is in a later state, i.e. a strike phase, the disconnector is closed.

The invention consists of a new sacrificial anode design that eliminates welding and reduces fixing time. This new anode design comprises a metallic appendix, which can be in the form of a hook, in order to hold and provide electrical contact between the anode and the jacket, or other part of the structure that is desired to be protected. In the contact region of the hook there will be a pointed device (3) to allow full electrical contact between the anode and the jacket element. Therefore, this electrical contact will be made by the anode's own weight, which may be added with a galvanically inert ballast to guarantee the contact until the end of the anode's lifetime.

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 utility model relates to the technical field of ballasts, in particular to a luminosity-adjustable electronic ballast, which comprises a ballast main body, a protective assembly is arranged outside the ballast main body, and the protective assembly comprises top plates arranged on two sides of the top of the ballast main body and bottom plates arranged on two sides of the bottom of the ballast main body. Connecting parts are arranged between the top plates and between the bottom plates, every two adjacent top plates are connected through the connecting parts, every two adjacent bottom plates are connected through the connecting parts, a second rotating plate is opened in a rotating mode, and then the top plates and the bottom plates are arranged above and below a ballast body in a sleeving mode respectively; the first spring abuts against the ballast main body and is connected through the connecting part, and after the second rotating plate and the top plate are fixed through the fixing part, through the arrangement of the buffering part and the first spring, impact on the ballast main body can be buffered, and stable operation of the ballast main body is further guaranteed.

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 utility model relates to the technical field of discharge lamp power supply, disclose a kind of self-adapting frequency modulation low-power electronic ballast, including ballast equipment, the front and back side of ballast equipment is provided with heat dissipation mechanism, the bottom of ballast equipment is provided with protective shell, the inside of protective shell is provided with protection mechanism, the bottom wall left and right sides of protective shell are provided with mounting mechanism;The heat dissipation mechanism includes two heat-conducting shells, the adjacent side of two The heat-conducting shell is respectively arranged at the front and back side of ballast equipment, and the left and right sides of ballast equipment are threadedly connected with a plurality of mounting bolts.In the utility model, heat exchange is carried out by contacting multiple heat dissipation fins with air, and the spacing between multiple heat dissipation fins is expanded by rotating the heat dissipation fins, achieving the purpose of improving heat dissipation effect and avoiding the situation that the service life of the ballast is reduced due to the entry of dust particles into its interior.

The utility model discloses a photocatalysis waste gas purifier, including shell and vent pipe, the inside of shell is connected with the fixed support, the fixed support is equipped with first sliding subassembly and second sliding subassembly, the first sliding subassembly and the second sliding subassembly are respectively connected with the first fixed mount and the second fixed mount, the first fixed mount and the second fixed mount are connected with the vent pipe, and the vent pipe is connected with the vent pipe. A UV lamp tube is installed between the first fixing frame and the second fixing frame, an upper cabinet body is installed on the first fixing frame, a ballast is installed in the upper cabinet body, the first sliding assembly comprises a pair of first sliding rails and a pair of first sliding blocks, the pair of first sliding rails are fixedly connected to the fixing support, and the pair of first sliding blocks are fixedly connected to the fixing support. And the pair of first sliding blocks are clamped on the pair of first sliding rails. Compared with the prior art, the utility model has the beneficial effects that the UV lamp tube and the ballast are opened by sliding outside instead of being opened by a top cover plate through the sliding rail assembly, so that the UV lamp tube is convenient to clean, check and replace, the ballast is convenient to maintain, and tools such as ladders are not needed.

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 ballast system includes a first ballast tray and a second ballast tray. The first ballast tray has a first side profile including a south leg connected to a north leg. The second ballast tray has a second side profile that is different than the first side profile. A length of the north leg of the second side profile is greater than a length of the south leg of the first side profile, and a height of the north leg of the second side profile is substantially equal to a height of the south leg of the first side profile. The north leg of the second side profile includes a curvature so as to partially curve toward the south leg of the second side profile.

The utility model discloses a lighting ballast convenient to replace, which comprises a ballast main body and a base, both sides of the horizontal end of the ballast main body are provided with clamping grooves, the bottom of the base is fixedly connected with a bottom strip, one side of the bottom strip is fixedly connected with a fixed insertion frame, and the fixed insertion frame is combined with one of the two clamping grooves. In the application, the ballast main body is placed on the base, the ballast main body is translated to enable one group of clamping grooves on the ballast main body to be combined with the fixed insertion frame, then the pull ring and the spring are released to pull the movable insertion frame through the movable base, and the movable insertion frame is inserted into the other group of clamping grooves, so that the installation of the ballast main body can be realized; an operator only needs to pull the movable insertion frame to a limit position, and the ballast main body can be taken out by translating the ballast for a specified distance, so that the combination stability of the ballast main body and the base is ensured, and the convenience of dismounting and replacing the ballast main body is improved.

The embodiment of the utility model discloses a smoke box with adjustable ultraviolet light intensity. The smoke box comprises a reaction box and an outer cover box, the reaction box comprises a box body frame and a light-transmitting material layer, the light-transmitting material layer is enclosed in the box body frame to form a closed reaction chamber, the light-transmitting material layer is fixed with the top surface of the box body frame, and the light-transmitting material layer is provided with a first gas exchange port and a second gas exchange port which are communicated with the interior of the closed reaction chamber; the outer cover box covers the reaction box, a plurality of groups of ultraviolet lamps and dimming ballasts which are arranged in pairs are mounted on the inner wall of the outer cover box, and a stepless dimming knob and a power supply are arranged on the outer side of the outer cover box; each ultraviolet lamp is electrically connected with the corresponding group of dimming ballasts, each dimming ballast is electrically connected to the stepless dimming knob, and the stepless dimming knob and each dimming ballast are electrically connected to the power supply. According to the embodiment of the invention, a plurality of groups of ultraviolet lamps and dimming ballasts which are arranged in pairs, and the stepless dimming knob and the power supply form a circuit access, so that the illumination intensity of the ultraviolet lamps can be steplessly adjusted.

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.

The invention provides an ultraviolet air disinfection device used in a strong magnetic environment, which comprises a direct current ballast 1, pure direct current output is obtained through the direct current ballast 1, and alternating current, especially high-frequency signals, is prevented from generating electromagnetic interference signals; the LED lamp further comprises an ultraviolet lamp tube 2, connectors 4 are arranged at the two ends of the ultraviolet lamp tube 2 and can be installed on a lamp holder 7, the connectors 4 on the two sides are connected with a wire 6 respectively, a switch 9 is arranged on the other side of the wire 6, and the switch 9 is electrically connected with the direct-current ballast 1, so that alternating-current signals, especially high-frequency signals, are prevented from generating electromagnetic interference signals. The device does not affect the work of instruments such as a nuclear magnetic resonance spectrometer, does not affect the nuclear magnetic imaging effect, can perform continuous real-time disinfection in a strong magnetic environment, and avoids the possibility of cross infection of patients.

The utility model discloses an electronic ballast, which comprises a base and a ballast body, side plates are symmetrically distributed on the base, clamp reeds are arranged on the side plates, and the ballast body is clamped on the base by the two clamp reeds which are oppositely distributed. The fixing device is novel in structure, easy to disassemble and assemble, capable of replacing a bolt connection fixing mode, labor-saving and convenient.

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 solid-state lighting apparatus includes at least one solid-state fluorescent lamp replacement having at least one pair of connectors configured to be connected to a fluorescent lamp fixture, a solid-state lighting driver configured to power the at least one solid-state fluorescent lamp replacement, and a driver connector configured to electrically connect the solid-state lighting driver to the at least one solid-state fluorescent lamp replacement in the fluorescent lamp fixture. The solid-state lighting driver comprises a number of jumpers, the configuration of which adapts the electrical connections between the solid-state lighting driver and the at least one solid-state fluorescent lamp replacement.

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.