Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

32results about How to "Avoid cross talk" patented technology

Waste circuit board hook pulling and dismounting device

The invention discloses a waste circuit board hook pulling and dismounting device, belonging to the technical field of waste recovery and reuse. The waste circuit board hook pulling and dismounting device comprises a crate, a heating system, a double-chain delivery mechanism, a hook pulling mechanism and a double-rolling brush mechanism, wherein the heating system divides the crate into a pre-heating region and a high temperature region; and a circuit board is arranged on the double-chain delivery mechanism, is preheated by the preheating region, and is subjected to dismounting of components and solder by the hook pulling mechanism and the double-rolling brush mechanism in the high temperature region. The air-out inclined planes of two lower high temperature bellows arranged at the lower part of the high temperature region inclines at a large angle facing to the center of the high temperature region, extension type hot air nozzles on the air-out inclined planes are a group of hot air spray pipes, the diagonal fault planes of the hot air spray pipes inclining upwards and the spray pipe outlets not only enable the circuit board to be heated evenly and rapidly, but also can ensure that all dismounted components and solder can enter collection trays of components and solder without entering the spray pipe outlets. The invention is a device which can pull and dismount the components from the printed circuit board with no damage and integrity, and is used for waste recover and reuse enterprises in electronic industry.
Owner:TSINGHUA UNIV

Waste circuit board hook pulling and dismounting device

The invention discloses a waste circuit board hook pulling and dismounting device, belonging to the technical field of waste recovery and reuse. The waste circuit board hook pulling and dismounting device comprises a crate, a heating system, a double-chain delivery mechanism, a hook pulling mechanism and a double-rolling brush mechanism, wherein the heating system divides the crate into a pre-heating region and a high temperature region; and a circuit board is arranged on the double-chain delivery mechanism, is preheated by the preheating region, and is subjected to dismounting of components and solder by the hook pulling mechanism and the double-rolling brush mechanism in the high temperature region. The air-out inclined planes of two lower high temperature bellows arranged at the lower part of the high temperature region inclines at a large angle facing to the center of the high temperature region, extension type hot air nozzles on the air-out inclined planes are a group of hot air spray pipes, the diagonal fault planes of the hot air spray pipes inclining upwards and the spray pipe outlets not only enable the circuit board to be heated evenly and rapidly, but also can ensure that all dismounted components and solder can enter collection trays of components and solder without entering the spray pipe outlets. The invention is a device which can pull and dismount the components from the printed circuit board with no damage and integrity, and is used for waste recover and reuse enterprises in electronic industry.
Owner:TSINGHUA UNIV

Device and method for processing signals of virtual surrounds of four loudspeakers

The invention provides a system and a method for processing signals of virtual surrounds of four loudspeakers. The system comprises an input module, a first sound mixer, a second sound mixer, a third sound mixer, a fourth sound mixer, a digital and analog converter, a left front loudspeaker, a right front loudspeaker, a left rear loudspeaker and a right rear loudspeaker, wherein the first sound mixer is used for mixing signals of a left sound channel, a center channel and a mega bass sound channel so as to acquire a first sound channel signal; the second sound mixer is used for mixing signals of a right sound channel, the center sound channel and the mega bass sound channel so as to acquire a second sound channel signal, the third sound mixer is used for mixing signals of a left rear surround sound channel and the mega bass sound channel so as to acquire a third sound channel signal; the fourth sound mixer is used for mixing signals of a right rear surround sound channel and the mega bass sound channel so as to acquire a fourth sound channel signal; the digital and analog converter is used for respectively converting the first sound channel signal, the second sound channel signal, the third sound channel signal and the fourth sound channel signal into a first audio, a second audio, a third audio and a fourth audio; and the four loudspeakers are respectively used for playing the first audio to the fourth audio. By the system, cost is saved, surround sound effect is good and signal processing is simple and easy to realize.
Owner:BYD CO LTD

A liquid level signal conversion device for exhausted shutdown

The invention discloses an exhaust shutdown liquid level signal conversion device, and relates to monitoring and control of the liquid level. The exhaust shutdown liquid level signal conversion device comprises four annular capacitive sensors, a shell, two power conversion circuit boards, an upper signal processing circuit board and a lower signal processing circuit board. The four annular capacitive sensors are located on four quadrants of the same horizontal plane in a liquid storage box respectively. The two power conversion circuit boards, the upper signal processing circuit board and the lower signal processing circuit board are respectively fixedly connected to the shell. An input connector is arranged on the shell to connect the annular capacitive sensors with the upper signal processing circuit board and the lower signal processing circuit board. The upper signal processing circuit board and the lower signal processing circuit board comprise two paths of switching circuits respectively, each path of switching circuit judges the height of the liquid surface according to capacitive signals, relays of the four paths of switching circuits are connected in series and in parallel to form a main switch, and the main switch is connected with an external control system through an output connector on the shell. By the adoption of the exhaust shutdown liquid level signal conversion device, reliability and safety of liquid level control are effectively improved.
Owner:BEIJING RES INST OF TELEMETRY +1

Isolated dual-output DC-DC power supply and industrial control equipment

The invention relates to an isolation type double-path output DC-DC power supply and industrial control equipment, the isolation type double-path output DC-DC power supply comprises an input filter capacitor, an enabling divider resistor, a DC-DC main circuit, an output filter capacitor, a voltage feedback resistor and an isolation rectification circuit, the DC-DC main circuit is provided with a first inductor which plays a role of a transformer, and the first inductor is connected with a decoupling device. According to the isolated dual-path output DC-DC power supply, the decoupling device is additionally arranged on the basis of an existing isolated dual-path output DC-DC power supply circuit, and the decoupling device is arranged to be connected with the first inductor which plays a role of a transformer in the DC-DC main circuit; therefore, when the first inductor L1 in the DC-DC main circuit presents leakage inductance due to heavy load or short circuit of one path of isolation loop voltage F5V output by the first inductor L1, the decoupling device is used for supplementing leakage inductance of a certain magnitude, the voltage output by the DC-DC power supply circuit is ensured to be stable, and the condition of mutual crosstalk of two paths of output voltage is avoided.
Owner:NINGBO SANXING MEDICAL & ELECTRIC CO LTD

Automatic charging power supply device and method capable of isolating power frequency

PendingCN113517754AAvoid cross talkMeet the isolation power frequency requirementsCircuit monitoring/indicationElectric powerElectrical batteryElectrical connection
The invention discloses an automatic charging power supply device and method capable of isolating power frequency. The device comprises more than two groups of batteries, each group of batteries is electrically connected with the common end of a charging relay and a power supply relay; the normally closed end of each charging relay is not connected with a wire, and the normally open end of each charging relay is electrically connected with a charger; the common end in each charging relay is electrically connected with the corresponding normally closed end by default; and each relay control coil can control the corresponding common end to be switched between the electric connection with the corresponding normally open end or the corresponding normally closed end. The normally closed ends of the power supply relays are electrically connected with a power supply circuit; the normally open ends of the power supply relays are not connected with any wires; the common end in each power supply relay is electrically connected with the corresponding normally closed end by default; each relay control coil can control the corresponding common end to be switched between the electric connection with the corresponding normally open end or the corresponding normally closed end; and the relay control coils of the charging relays and the power supply relays are electrically connected with a main controller of a monitoring unit and controlled by the main controller. According to the power supply device disclosed by the invention, the batteries are adopted for power supply, so that the power frequency isolation requirement is met; the batteries do not need to be manually replaced; and power supply support is provided for really realizing unattended signal monitoring.
Owner:中国电波传播研究所

Infrared focal plane detector and manufacturing method thereof

The invention discloses a manufacturing method of an infrared focal plane detector. The method comprises the following steps: arranging a passivation layer on the upper surface of a p-type substrate; performing whole-surface injection on the p-type substrate through the passivation layer to obtain a continuous n-type doped layer; photoetching an isolation groove pattern on the surface of the passivation layer, and etching according to the isolation groove pattern to obtain a patterned isolation groove which penetrates through the passivation layer and the n-type doping layer and of which the bottom surface is in contact with the p-type substrate, so as to prepare the infrared focal plane detector, wherein the n-type doped layer comprises a plurality of detection pixels which are separated by the isolation grooves. The adjacent detection pixels are spatially separated through the isolation grooves, the crosstalk phenomenon between the detection pixels is avoided, the detection precision of the detector is improved, the signal strength is guaranteed, ion implantation doping does not need to be carried out through a photoresist layer, and the problem of surface pollution residues before implantation is avoided. The invention also provides an infrared focal plane detector with the above beneficial effects.
Owner:北京智创芯源科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products