38results about How to "Meet the needs of simultaneous use" patented technology

The present invention discloses a fast inverter system mainly consisting of an inverter circuit, a processing circuit connected with the inverter circuit, a voltage regulator circuit connected with the processing circuit, a low-pass filter circuit connected with the voltage regulator circuit and a transformer T1 connected with the low-pass filter circuit, wherein a switch circuit is further disposed at an input of the inverter circuit; the switch circuit consists of a triode VT1, a bidirectional trigger diode K, a resistor R2 with one end connected with the inverter circuit and the other end connected with a base of the triode VT1, a capacitor C1 with a cathode connected with the T2 pole of the bidirectional trigger diode K and an anode connected with the T1 pole of the bidirectional trigger diode K through the resistor R1 and the like. The fast inverter system of the present invention can speed up the activation of the inverter system under the action of the switch circuit, thereby improving the efficiency of the inverter system.

The invention discloses a low-pass filtering inverter system based on linear driving. The system is characterized by being composed of a transformer T1, an inverter circuit, a linear driving circuit connected with the inverter circuit, a logic control circuit connected with the linear driving circuit and a low-pass filtering circuit connected with the logic control circuit; the output end of the low-pass filtering circuit is connected with the primary side of the transformer T1; the linear driving circuit is composed of a driving chip U, a triode VT4, a triode VT4, a triode VT6, a triode VT7, a polar capacitor C5, a resistor R10 and the like; the positive electrode of the polar capacitor C5 is connected with the inverter circuit, and the negative electrode of the polar capacitor C5 is connected with a pin IN1 of the driving chip U after passing through a resistor R9; one end of the resistor R10 is connected with the collector electrode of the triode VT4, and the other end of the resistor R10 is connected with the base electrode of the triode VT6 after passing through a resistor R11. Since the low-pass filtering inverter system based on linear driving is provided with the linear driving circuit, when the inverter system is used for driving large-load electric equipment, the electric equipment can be protected against damage by triple frequency harmonic.

The invention discloses a phase processing based low-pass filtering LED voltage stabilizing system. The phase processing based low-pass filtering LED voltage stabilizing system mainly comprises a voltage transformation circuit, a two-stage low-pass filtering and amplification circuit connected with the voltage transformation circuit, a phase shifting circuit connected with the two-stage low-pass filtering and amplification circuit, a voltage stabilizing circuit connected with the phase shifting circuit and an output circuit connected with the voltage stabilizing circuit. The phase shifting circuit consists of a phase shifting chip U1, an audion VT4, an audion VT5, a resistor R12, a polar capacitor C13 and the like, wherein one end of the resistor R12 is connected with VCC+ tube pin of the phase shifting chip U1, the other end of the resistor R12 is connected with the IN1 tube pin of the phase shifting chip U1, the negative pole of the polar capacitor C12 is connected with the IN1 tube pin of the phase shifting chip U1 through a resistor 13, the positive pole of the polar capacitor C12 is connected with the IN2 tube pin of the phase shifting chip U1. By means of the phase shifting processing circuit, good stability is well ensured while the output power of the LED drive system can be amplified.

The invention discloses a peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment. The peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment mainly comprises a peak clipping circuit and a pulse wave modulation circuit connected with the output end of the peak clipping circuit. The peaking clipping pulse wave modulation system based on the two-stage low-pass filter and amplification treatment is characterized in that a two-stage low-pass filter and amplification circuit is further arranged at the output end of the pulse wave modulation circuit, wherein the two-stage low-pass filter and amplification circuit consists of an amplifier P1, an amplifier P2, a triode VT2, a triode VT3, a capacitor C4, a resistor R6, a capacitor C5, a capacitor C6, and the like, wherein the positive electrode of the capacitor C4 is connected with the pulse wave modulation circuit, the negative electrode of the capacitor C4 is grounded; one end of the resistor R6 is connected with the positive phase input end of the amplifier 91 and the other end of the resistor R6 is connected with the positive electrode of the capacitor C4; the positive electrode of the capacitor C5 is connected with an inverted phase input end of the amplifier P1 after passing through a resistor R7, and the negative electrode of the capacitor C5 is connected with the negative electrode of the capacitor C4; and the capacitor C6 is connected in series between the output end and the inverted phase input end of the amplifier P1. By adopting the two-stage low-pass filter and amplification circuit, the peak clipping pulse wave modulation system disclosed by the invention can be used for amplifying the output power of the modulation system, so that the modulation system can meet the needs of simultaneously using more electrical appliances.

The invention discloses a multifunctional portable medical trolley. The multifunctional portable medical trolley comprises a trolley body, wherein the trolley body comprises a bottom frame, a main frame and a support, the main frame and the support are hinged to the two ends of the bottom frame, the main frame and the support comprise a main bracket and a branch bracket which are hinged to the two ends of the bottom frame through hinge mechanisms respectively, a leaning frame and a back frame are detachably connected to the main bracket and the branch bracket, a seat plate frame is detachably and rotationally connected to the back frame, and self-locking universal wheels are mounted on the hinge mechanisms at four corners of the bottom frame. The invention aims to provide the multifunctional portable medical trolley which is convenient and quick to disassemble and assemble, low in cost, flexible to deform and multifunctional.

The invention discloses a linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system. The linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system mainly comprises a voltage transformation circuit, a two-stage low-pass filtering and amplification circuit connected with the voltage transformation circuit, a voltage stabilizing circuit connected with the two-stage low-pass filtering and amplification circuit and an output circuit connected with the output end of the voltage stabilizing circuit and is characterized by further comprising a linear drive circuit connected with the voltage transformation circuit and the two-stage low-pass filtering and amplification circuit simultaneously. The linear drive circuit consists of a drive chip U1, an audion VT5, an audion VT6, an audion VT7, an audion VT8, a polar capacitor C13 and the like, wherein the positive pole of the polar capacitor C13 is connected with the voltage transformation circuit, the negative pole of the polar capacitor C13 is connected with the IN1 tube pin of the drive chip U1 through a resistor R12. The output power of the linear drive based two-stage low-pass filtering and amplification LED voltage stabilizing system can be amplified by means of the linear drive circuit, and the system can meet more LED simultaneous usage demands.

The invention discloses a high-stability low-pass filter inverter system. The high-stability low-pass filter inverter system is mainly composed of a transformer T1, an inverter circuit, a logic control circuit connected with the inverter circuit, and a low-pass filter circuit connected with the primary side of the transformer T1. The high-stability low-pass filter inverter system is characterized in that a voltage stabilizing circuit is arranged between the logic control circuit and the low-pass filter circuit; the voltage stabilizing circuit is composed of a triode VT4, a triode VT5, a voltage stabilizer U, a capacitor C2, a resistor R6, a capacitor C1 and the like, wherein the positive electrode of the capacitor C2 passes through a diode D5 and then is connected with the base electrode of the triode VT5, the negative electrode of the capacitor C2 is connected with the logic control circuit, one end of the resistor R6 is connected with the emitting electrode of the triode VT4, the other end of the resistor R6 is connected with the negative electrode of the capacitor C2, the positive electrode of the capacitor C1 is connected with the base electrode of the triode VT5, and the negative electrode of the capacitor C1 is connected with the inverter circuit. The voltage stabilizing circuit is arranged, the alternating voltage output by the system can be more stable, and the load and the system are protected.

The invention discloses a high-efficiency inversion system which is characterized by being mainly composed of a transformer T1, an inversion circuit, a processing circuit connected with the inversion circuit, a voltage stabilizing circuit connected with the processing circuit and a low-pass filter circuit connected with the voltage stabilizing circuit, wherein a primary side of the transformer T1 is connected with the low-pass filter circuit; the processing circuit is composed of a triode VT2, a one-way thyristor D5, a diode D4, a capacitor C1 and the like. An N pole of the diode D4 is connected with a control pole of the one-way thyristor D5; a P pole of the diode D4 is connected with an N pole of the one-way thyristor D5; a positive pole of the capacitor C1 is connected with an emitter of the triode VT2; and a negative pole of the capacitor C1 is connected with the P pole of the diode D4. The inversion system is provided with the processing circuit, so that the inversion efficiency of the inversion system is improved by the aid of the processing circuit and electric energy is saved.

The invention relates to a plug with a socket structure. The plug mainly comprises a plug body and socket units. A left cover, a bottom cover and a right cover are respectively arranged on three sides of the plug body. A fire wire bolt, a grounding bolt and a zero wire bolt are arranged on one side of the bottom cover. Jacks into which another socket unit is inserted are arranged in a side opposite to the bottom cover and the upper part of the plug body. A fire wire plug cover, a grounding plug cover and a zero wire plug cover are arranged in the plug body. The fire wire plug cover is connected with the fire wire bolt. The grounding plug cover is connected with the grounding bolt. The zero wire plug cover is connected with the zero wire bolt. The plug provided by the invention has the advantages that each socket unit comprises a set of bolt and two sets of jacks which are located in different planes; the socket units are connected with each other, so that the jacks are extended; interference between the jacks is avoided; the use area of the plug is expanded; and multiple electrical appliances can be simultaneously used.

The invention discloses a two-stage low-pass filtering and amplifying, peak clipping and pulse modulation system based on linear driving. The system mainly comprises a peak clipping circuit, a pulse modulation circuit and a two-stage low-pass filtering and amplifying circuit, wherein the pulse modulation circuit is connected with the output end of the peak clipping circuit, and the two-stage low-pass filtering and amplifying circuit is connected with the output end of the pulse modulation circuit. The system is characterized by further comprising a linear driving circuit arranged between the peak clipping circuit and the pulse modulation circuit; the linear driving circuit is composed of a driving chip U2, a triode VT5, a triode VT6, a triode VT7, a triode VT8, a polar capacitor C10, a resistor R14 and the like; the positive electrode of the polar capacitor C10 is connected with the peak clipping circuit, and the negative electrode of the polar capacitor C10 is connected with a pin IN1 of the driving chip U2 after passing through a resistor R13; one end of the resistor R14 is connected with the collector electrode of the triode VT5, and the other end of the resistor R14 is connected with the base electrode of the triode VT7 after passing through a resistor R15. Under the action of the linear driving circuit, the system can provide a stable voltage and prevent the situation that the using effect and the service life of an electric appliance are affected by an unstable voltage.

The invention discloses a stage capable of changing a stage region and a stage state by rotation of an auditorium, which comprises a rail support frame, a center stage region, at least one set of auditorium assembly and a driving device, wherein the rail support frame is arranged on a stage base and a stage bin is formed between the rail support frame and the stage base; the center stage region is positioned at the middle part of the rail support frame; each auditorium assembly is arranged on the rail support frame, faces the center stage region and can rotate around the center stage region; and the driving device supports each auditorium assembly and drives each auditorium assembly to rotate around the center stage region. The stage capable of changing the stage region and the stage state by rotation of the auditorium, which is disclosed by the invention, adopts the modular design, has a simple structure and is convenient to assemble and disassemble; and each auditorium assembly can rotate around the center stage region in the range of 0 to 360 degrees, so that a viewing angle of audiences can be changed and a viewing effect is improved.

An embodiment of the invention provides a data service method in a home network, equipment and a system, relating to the communication field. Requirements of a plurality of data resource by an intelligent terminal in the home network can be satisfied. The data service method comprises the following steps: through a wireless network, a home network server receives an access request carrying an IP address of the intelligent terminal sent by the intelligent terminal, and establishes connection with the intelligent terminal; a service request which carries different service content indication information and is sent by the intelligent terminal is received; according to the different service content indication information in the service request, a corresponding service is started, and service interaction data is sent to the intelligent terminal. The embodiment of the invention is used for a home network data service system.

The present invention discloses a fast inverter system mainly consisting of an inverter circuit, a processing circuit connected with the inverter circuit, a voltage regulator circuit connected with the processing circuit, a low-pass filter circuit connected with the voltage regulator circuit and a transformer T1 connected with the low-pass filter circuit, wherein a switch circuit is further disposed at an input of the inverter circuit; the switch circuit consists of a triode VT1, a bidirectional trigger diode K, a resistor R2 with one end connected with the inverter circuit and the other end connected with a base of the triode VT1, a capacitor C1 with a cathode connected with the T2 pole of the bidirectional trigger diode K and an anode connected with the T1 pole of the bidirectional trigger diode K through the resistor R1 and the like. The fast inverter system of the present invention can speed up the activation of the inverter system under the action of the switch circuit, thereby improving the efficiency of the inverter system.

The invention discloses a low pass filtering inversion system based on a capacitance feedback three-point oscillation circuit; the low pass filtering inversion system comprises a transformer T1, an inversion circuit, a logic control circuit connected with the inversion circuit, a low pass filtering circuit connected with a primary side of the transformer T1, and a phase shift processing circuit arranged between the logic control circuit and the low pass filtering circuit; the features are that the capacitance feedback three-point oscillation circuit is also connected in series between the phase shift processing circuit and the low pass filtering circuit; the capacitance feedback three-point oscillation circuit enables the inversion system to output more stable voltage frequency, thus protecting electric appliances, and the electric appliances can more smoothly work.

Disclosed in the invention is a mirror type voltage-stabilizing oscillation LED system based on two-stage low-pass filtering and amplification processing. The system is composed of a transformation circuit, a voltage-stabilizing circuit, and an output circuit connected with the output terminal of the voltage-stabilizing circuit. The system is characterized in that a two-stage low-pass filtering and amplification circuit is also arranged between the voltage-stabilizing circuit and the transformation circuit. A mirror type voltage-stabilizing oscillation circuit is connected to the transformation circuit. With the system, the voltage becomes stable and the voltage fluctuation is reduced; the service life of the circuit is improved; the output power of the LED system is amplified; and the requirement of simultaneous usage of multiple LEDs can be met.

The invention relates to a combined type plug and socket structure, which mainly comprises a socket unit, wherein the socket unit comprises a main body, two side faces of the main body are respectively provided with a left end cover, a bottom cover and a right end cover, one side of the bottom cover is provided with a live wire plug pin, a grounding plug pin and a zero wire plug pin, the upper part of the main body and the side face opposite to the bottom cover are respectively provided with a jack for plug-in of another socket unit, the main body is internally provided with a live wire plug bush, a grounding plug bush and a zero wire plug bush, the live wire plug bush is connected with the live wire plug pin, the grounding plug bush is connected with the grounding plug pin, and the zero wire plug bush is connected with the zero wire plug pin. The combined type plug and socket structure disclosed by the invention has the beneficial effects that each socket unit is provided with a group of plug pins and two groups of jacks located on different planes, the jacks can be expanded by means of interconnection of the socket units so as to meet the requirement for using a plurality of electric appliances at the same time, the number of the socket units to be spliced can be increased or decreased as required, the jacks of the two socket units back and forth are not located on the same plane, so that the interference among the jacks is prevented, and the plugs are ensured to be used in a larger area way.

The invention discloses a peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment. The peak clipping pulse wave modulation system based on two-stage low-pass filter and amplification treatment mainly comprises a peak clipping circuit and a pulse wave modulation circuit connected with the output end of the peak clipping circuit. The peaking clipping pulse wave modulation system based on the two-stage low-pass filter and amplification treatment is characterized in that a two-stage low-pass filter and amplification circuit is further arranged at the output end of the pulse wave modulation circuit, wherein the two-stage low-pass filter and amplification circuit consists of an amplifier P1, an amplifier P2, a triode VT2, a triode VT3, a capacitor C4, a resistor R6, a capacitor C5, a capacitor C6, and the like, wherein the positive electrode of the capacitor C4 is connected with the pulse wave modulation circuit, the negative electrode of the capacitor C4 is grounded; one end of the resistor R6 is connected with the positive phase input end of the amplifier 91 and the other end of the resistor R6 is connected with the positive electrode of the capacitor C4; the positive electrode of the capacitor C5 is connected with an inverted phase input end of the amplifier P1 after passing through a resistor R7, and the negative electrode of the capacitor C5 is connected with the negative electrode of the capacitor C4; and the capacitor C6 is connected in series between the output end and the inverted phase input end of the amplifier P1. By adopting the two-stage low-pass filter and amplification circuit, the peak clipping pulse wave modulation system disclosed by the invention can be used for amplifying the output power of the modulation system, so that the modulation system can meet the needs of simultaneously using more electrical appliances.

The invention discloses an electric ceiling fan which comprises a fan head, a mounting base and a central controller. The fan head and the mounting base are both connected with the central controller; and an adjusting device used for adjusting the air blowing direction of the fan head is arranged in the mounting base. The mounting base comprises a first barrel and a second barrel which are arranged coaxial. The adjusting device comprises an adjusting support and an adjuster. According to the electric ceiling fan, under the effect of the adjusting device, fixed point air blowing, up-down swinging air blowing in the z-axis direction, distance adjustment and rotary air blowing are achieved so as to meet diversified application demands. The electric ceiling fan is flexible, changeable, simple in structure, convenient to use and capable of meeting the demand of simultaneous application by multiple people; and adjustment for air blowing at multiple positions can be achieved.