CN105187028B - The high-power light current power supply of LC bandpass filterings system, LC bandwidth-limited circuits, electronic circuit, static - Google Patents

The high-power light current power supply of LC bandpass filterings system, LC bandwidth-limited circuits, electronic circuit, static Download PDF

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CN105187028B
CN105187028B CN201510538463.8A CN201510538463A CN105187028B CN 105187028 B CN105187028 B CN 105187028B CN 201510538463 A CN201510538463 A CN 201510538463A CN 105187028 B CN105187028 B CN 105187028B
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insulating vessel
conducting liquid
module
inductance
volume
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CN105187028A (en
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林谷
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Foshan Xinhanwei Audio Power Co ltd
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Ningbo Liketek Information Technology Co Ltd
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Abstract

LC bandpass filtering systems, it is characterised in that：Including the first input node（INT+）, the second input node（INT‑）, the first output node（INT+）, the second output node（INT‑）, electric capacity drive module, controlled capacitance, inductance drive module, controlled inductance, control module, sensing module, sampled point（P）, power module.LC bandwidth-limited circuits, the materialization based on foregoing LC bandpass filtering systems.A kind of electronic circuit, there is foregoing LC bandwidth-limited circuits.A kind of high-power light current power supply of static, there is foregoing LC bandwidth-limited circuits.Long lifespan of the present invention, cheap, isolation is good, can apply to high-power light current power circuit, power circuit, ultrahigh voltage power circuit.

Description

LC bandpass filterings system, LC bandwidth-limited circuits, electronic circuit, static are high-power Light current power supply
Technical field
The invention belongs to electricity field, more particularly to it is LC bandpass filterings system, LC bandwidth-limited circuits, electronic circuit, quiet Put the high-power light current power supply of type.
Background technology
The program-controlled wave filter with real-time adjustability of prior art is all only used for signal filtering and is not used to greatly The filtering of the circuit of power, the filtering for being not used to high-tension circuit, it is worth improving.
The content of the invention
To solve the problems, such as to describe in technical background, the present invention propose LC bandpass filterings system, LC bandwidth-limited circuits, The high-power light current power supply of electronic circuit, static.
The present invention has following technology contents.
1st, LC bandpass filterings system, it is characterised in that：Including the first input node (INT+), the second input node (INT-), the first output node (OUT+), the second output node (OUT-), electric capacity drive module, controlled capacitance, inductance driving mould Block, controlled inductance, control module, sensing module, sampled point (P), power module；
The One function end of controlled inductance is connected with the first input node (INT+), another function end of controlled inductance with Controlled capacitance is connected, and between end that controlled capacitance is not connected with controlled inductance and the first output node (OUT+) there is electricity to connect Connect；
Have between power module and control module and be used to transmit being electrically connected for electric energy, power module can be to control mould Block provides electric energy；
Sampled point (P) is located in the electrical pathways being electrically connected between controlled capacitance and the first output node (OUT+)；
Sensor can gather the information such as size of current voltage swing of electricity on sampled point (P), sensing module and control There is being electrically connected for transmission signal, control module can obtain sensing module from sensing module and collect between molding block Electrical information；
Have between control module and electric capacity drive module and be electrically connected, have between electric capacity drive module and controlled capacitance For controlling being electrically connected for controlled capacitance property value, control module can be controlled controllable by controlling electric capacity drive module Electric capacity；
Have between control module and inductance drive module and be electrically connected, have between inductance drive module and controlled inductance For controlling being electrically connected for controlled inductance property value, control module can be controlled controllable by controlling inductance drive module Inductance.
2nd, the LC bandpass filtering systems as described in technology contents 1, it is characterised in that：One input of power module and One output node (OUT+) is connected and tie point is located at electrical pathways between sampled point (P) and the first output node (OUT+) On, another input of power module is connected with the second output node (OUT-).
3rd, a kind of LC bandwidth-limited circuits, it is characterised in that：Including the first input node (INT+), the second input node (INT-), the first output node (OUT+), the second output node (OUT-), electric capacity drive module, controlled capacitance, inductance driving mould Block, controlled inductance, control module, sensing module, sampled point (P), power module；
Controlled capacitance feature is as follows：Including insulating vessel (G11), conducting liquid (G31), floating body (G21), bottom electrode, Hold pole rod (G50), insulating barrier (G51), magnet coil (G41),
Insulating vessel (G11) has stable shape, and the profile of insulating vessel (G11) is cylindric, insulating vessel (G11) Cavity volume to be cylindric, change in shape is less likely to occur the cavity volume of insulating vessel (G11), and insulating vessel (G11) is sealing container,
Conducting liquid (G31) is housed in insulating vessel (G11) cavity volume, and the volume of conducting liquid (G31) is less than insulation The volume of container (G11), the volume of conducting liquid (G31) are more than the half of the volume of insulating vessel (G11),
The fixed outside for being wrapped in insulating vessel (G11) of magnet coil (G41), magnet coil (G41) are located at insulating vessel (G11) below grade stringcourse, the axis of the axis and insulating vessel (G11) of magnet coil (G41) coincides,
It is cylindric electric conductor to hold pole rod (G50), and the axis for holding pole rod (G50) overlaps with the axis of insulating vessel (G11), Insulating barrier (G51) is covered in hold forms capacitance electrode on pole rod (G50),
The averag density of floating body (G21) is less than the density of conducting liquid (G31), and floating body (G21) has magnetic or paramagnetism, For floating body (G21) device in insulating vessel, floating body (G21) outer surface is insulation, and the external volume of floating body (G21) is less than insulation The volume of container (G11) subtracts conducting liquid (G31) volume, and the center of floating body (G21) has through hole (G22), floating body (G21) Central through hole (G22) diameter be more than capacitance electrode diameter, floating body (G21) by its through hole (G22) go here and there electric capacity electricity Floated on extremely conducting liquid (G31) and can free floating in vertical direction,
Bottom electrode is located at the cavity volume inner surface bottom of insulating vessel (G11), and bottom electrode and conducting liquid (G31) are always Keep contact,
It is powered to magnet coil (G41), magnet coil (G41) produces magnetic field (G42), and magnet coil (G41) can attract to float Body (G21) makes floating body (G21) sink, and causes floating body (G21) to arrange the volume that arranges of conducting liquid (G31) and increase, and then makes The fluid level of conducting liquid (G31) rises and can increase the contact area between capacitance electrode and conducting liquid, and this is to divide Number as ending subordinate sentence in above-described all parts be pertaining only to controlled capacitance；
The feature of controlled inductance is as follows：Including insulating vessel (G11), conducting liquid (G31), entity (G21), bottom electrode (G51), wire rod (L10), inductance coil (L1), magnet coil (G41),
Insulating vessel (G11) has stable shape, and the profile of insulating vessel (G11) is cylindric, insulating vessel (G11) Cavity volume to be cylindric, change in shape is less likely to occur the cavity volume of insulating vessel (G11), and insulating vessel (G11) is sealing container,
Conducting liquid (G31) is housed in insulating vessel (G11) cavity volume, and the volume of conducting liquid (G31) is less than insulation The volume of container (G11), the volume of conducting liquid (G31) are more than the half of the volume of insulating vessel (G11),
The fixed outside for being wrapped in insulating vessel (G11) of magnet coil (G41), magnet coil (G41) are located at insulating vessel (G11) more than grade stringcourse, the axis of the axis and insulating vessel (G11) of magnet coil (G41) coincides,
Wire rod (L10) is cylindric and surface insulation, the axis of wire rod (L10) and the axis of insulating vessel (G11) Overlapping, inductance coil (L1) is wrapped on wire rod (L10) and forms wire-wound inductor,
The averag density of entity (G21) is more than or equal to the density of conducting liquid (G31), and entity (G21) has magnetic or suitable Magnetic, for entity (G21) device in insulating vessel, entity (G21) outer surface is insulation, and the external volume of entity (G21) is small Conducting liquid (G31) volume is subtracted in the volume of insulating vessel (G11), the center of entity (G21) has through hole (G22), real The diameter of the central through hole (G22) of body (G21) is more than the diameter of wire-wound inductor, and entity (G21) is gone here and there by its through hole (G22) Suspend or sink to the bottom on wire-wound inductor in conducting liquid (G31) and can free floating in vertical direction,
Bottom electrode (G51) is located at the cavity volume inner surface bottom of insulating vessel (G11), bottom electrode (G51) and conduction liquid Body (G31) is always to maintain contact,
In the case that coil is not powered on, there is conductive contact, to electromagnetism between conducting liquid (G31) and inductance coil (L1) Coil (G41) is powered, and magnet coil (G41) produces magnetic field (G42), and magnet coil (G41) can attract entity (G21) to make entity (G21) rise, and cause floating state change of the entity (G21) in conducting liquid (G31) to be floating state, so that entity (G21) arrange conducting liquid (G31) arranges volume reduction, and then the fluid level of conducting liquid (G31) is declined and can be subtracted The number of turns that few inductance coil (L1) is flooded by conducting liquid (G31), and increase inductance coil (L1) number of active coils, this subordinate sentence In above-described all parts be pertaining only to controlled inductance；
Inductance drive module, electric capacity drive module are same drive modules, and its feature of this drive module is as follows：Including First resistor (R10), the first electric capacity (C10), metal-oxide-semiconductor, second resistance (R11), the second electric capacity (C11), diode (D10),
First resistor (R10) is in parallel with the first electric capacity (C10), one end of first resistor (R10) and the source electrode phase of metal-oxide-semiconductor Even, the end that first resistor (R10) is not connected with metal-oxide-semiconductor source electrode is the first input end of drive module, second resistance (R11) and the Two electric capacity (C11) are in parallel, and one end of second resistance (R11) is connected with the drain electrode of metal-oxide-semiconductor, and second resistance (R11) is not leaked with metal-oxide-semiconductor Extremely connected end is connected with the negative pole of diode (D10)；
Sensing module resistance characteristic is as follows：Including the first sampling resistor (R20), the second sampling resistor (R21), the first sampling Resistance (R20) is connected with the second sampling resistor (R21), the tie point of the first sampling resistor (R20) and the second sampling resistor (R21) For the signal output part of sensing module, the end that the first sampling resistor (R20) is not connected with the second sampling resistor (R21) is sensing mould The sampling end of block, the end that the second sampling resistor (R21) is not connected with the first sampling resistor (R20) are the reference edge of sensing module；
The inductance coil (L1) of controlled inductance is connected with the first input node (INT+), the magnet coil of controlled inductance (G41) both ends are connected with the both ends of the diode (D10) of inductance drive module, the bottom electrode (G51) of controlled inductance with can The bottom electrode of control electric capacity is connected；
The appearance pole rod (G50) of controlled capacitance is connected with sampled point (P), the both ends of the magnet coil (G41) of controlled capacitance with The both ends of the diode (D10) of electric capacity drive module are connected；
Control module has the control signal output channel that at least two is capable of output pwm signal, and control module has at least One sampled signal input；
Power module has first input end (IN+), the second input (IN-), the first output end (OT+), the second output Hold (OT-)；
The input of inductance drive module is connected with the first output end (OT+) of power module, and the two of inductance drive module The positive pole of pole pipe (D10) is connected with the second output end (OT-) of power module；
The input of electric capacity drive module is connected with the first output end (OT+) of power module, and the two of electric capacity drive module The positive pole of pole pipe (D10) is connected with the second output end (OT-) of power module；
The grid of the metal-oxide-semiconductor of inductance drive module is connected with control module control signal output channel；
The grid of the metal-oxide-semiconductor of electric capacity drive module is connected with control module control signal output channel；
The reference edge of sensing module is connected with the second output node (OUT-)；
Sampled point (P) is connected with the first output node (OUT+)；
The sampling end of sensing module is connected on sampled point (P)；
The signal output part of sensing module is connected with the sampled signal input of control module；
Have between control module and power module and be used to transmit being electrically connected for electric energy, power module can be to control mould Block provides electric energy.
4th, the LC bandpass filtering systems as described in technology contents 3, it is characterised in that：The floating body of described controlled capacitance (G21) inside has the cavity for being used for adjusting density.
5th, the LC bandpass filtering systems as described in technology contents 3, it is characterised in that：Described controlled capacitance, controlled inductance Public electrode (G51) use the alloy containing tungsten to be made.
6th, the LC bandpass filtering systems as described in technology contents 3, it is characterised in that：Described insulating vessel (G11) is glass Glass is made.
7th, the LC bandpass filtering systems as described in technology contents 3, it is characterised in that：Described control module is single-chip microcomputer.
8th, the LC bandpass filtering systems as described in technology contents 3, it is characterised in that：First output of described power module There is filter capacitor (C20) between end (OT+), the second output end (OT-).
9th, a kind of electronic circuit, it is characterised in that：With the LC bandwidth-limited circuits described in technology contents 3.
10th, the high-power light current power supply of a kind of static, it is characterised in that：With the LC bandpass filterings described in technology contents 3 Circuit.
Technology contents illustrate and its advantage.
Technology contents explanation：
In the present invention, floating body (G21) can be that single structure can also be composite construction, can be that single substance is formed, Can also be that many kinds of substance is formed；The shape of floating body (G21) is unlimited, and those skilled in the art can be according to the demand of oneself voluntarily Feasible shape reasonable in design, this is skilled, know common knowledge this area engineer it will be appreciated that, therefore Do not repeat.
Controlled capacitance, the controlled inductance of the filter circuit of the present invention, contact will not burn, service life length.
The filtering system of the present invention, can be used for high-power circuit, light current high-power circuit, LC bandpass filterings of the invention System, which needs to stand, to be used, and the present invention is not suitable with and mobile device, but the equipment used for standing is to adapt to.
The controllable inductor of the present invention, controlled capacitance are using electromagnetic force, the floating state of Magnetic Control floating body/entity so as to controlling The discharge opeing volume of floating body processed is that those skilled in the art are difficult to expect so as to control inductance, capacitance so as to control liquid level 's.
The present invention control module can according to sensing module feed back data to adjust controllable inductor, controlled capacitance enters And change filtering characteristic, therefore this LC wave filters have real-time monitoring, can be adjusted according to the actual interference situation of circuit It is whole, it can also be changed according to the actual requirement of user, user or designer can be to control module programming realizations pair The real-time control of whole filter circuit.
Long lifespan of the present invention, cheap, isolation is good, high-power circuit can be applied to such as light current power circuit, Power circuit, ultrahigh voltage power circuit.
Brief description of the drawings
Accompanying drawing 1 is the schematic diagram of embodiment 1.
Accompanying drawing 2 is the schematic diagram of embodiment 2.
Accompanying drawing 3 is the schematic diagram of embodiment 3.
Example is embodied
Below in conjunction with embodiment, the present invention will be described.
Embodiment 1, as shown in figure 1, LC bandpass filtering systems, it is characterised in that：Including the first input node INT+, Two input node INT-, the first output node OUT+, the second output node OUT-, electric capacity drive module, controlled capacitance, inductance drive Dynamic model block, controlled inductance, control module, sensing module, sampled point P, power module；
The One function end of controlled inductance is connected with the first input node INT+, another function end of controlled inductance with can Control electric capacity is connected, with being electrically connected between end that controlled capacitance is not connected with controlled inductance and the first output node OUT+；
Have between power module and control module and be used to transmit being electrically connected for electric energy, power module can be to control mould Block provides electric energy；
Sampled point P is located in the electrical pathways being electrically connected between controlled capacitance and the first output node OUT+；
Sensor can gather the information such as size of current voltage swing of electricity on sampled point P, sensing module and control There is being electrically connected for transmission signal, control module can obtain what sensing module collected from sensing module between module Electrical information；
Have between control module and electric capacity drive module and be electrically connected, have between electric capacity drive module and controlled capacitance For controlling being electrically connected for controlled capacitance property value, control module can be controlled controllable by controlling electric capacity drive module Electric capacity；
Have between control module and inductance drive module and be electrically connected, have between inductance drive module and controlled inductance For controlling being electrically connected for controlled inductance property value, control module can be controlled controllable by controlling inductance drive module Inductance.
Embodiment 2, as shown in Fig. 2 based on the LC bandpass filtering systems described in embodiment 1, it is characterised in that：Power supply One input of module is connected with the first output node OUT+ and tie point be located at sampled point P and the first output node OUT+ it Between electrical pathways on, another input of power module is connected with the second output node OUT-.
Embodiment 3, as shown in figure 3, a kind of LC bandwidth-limited circuits, it is characterised in that：Including the first input node INT +, the second input node INT-, the first output node OUT+, the second output node OUT-, electric capacity drive module, controlled capacitance, electricity Feel drive module, controlled inductance, control module, sensing module, sampled point P, power module；
Controlled capacitance feature is as follows：Including insulating vessel G11, conducting liquid G31, floating body G21, bottom electrode, appearance pole rod G50, insulating barrier G51, magnet coil G41,
Insulating vessel G11 has stable shape, and insulating vessel G11 profile is cylindric, insulating vessel G11 cavity volume To be cylindric, change in shape is less likely to occur insulating vessel G11 cavity volume, and insulating vessel G11 is sealing container,
Conducting liquid G31 is housed in insulating vessel G11 cavity volume, and conducting liquid G31 volume is less than insulating vessel G11 Volume, the half of the volume of conducting liquid G31 volume more than insulating vessel G11,
Magnet coil G41, which is fixed, is wrapped in insulating vessel G11 outside, magnet coil G41 be located at insulating vessel G11 etc. Below stringcourse, the axis of magnet coil G41 axis and insulating vessel G11 coincides,
Appearance pole rod G50 is cylindric electric conductor, and the axis for holding pole rod G50 overlaps with insulating vessel G11 axis, insulating barrier G51 is covered in hold forms capacitance electrode on the rod G50 of pole,
Floating body G21 averag density is less than conducting liquid G31 density, and floating body G21 has magnetic or paramagnetism, floating body G21 devices are in insulating vessel, and floating body G21 outer surfaces are insulation, and floating body G21 external volume is less than insulating vessel G11's Volume subtracts conducting liquid G31 volume, and floating body G21 center has through hole G22, and floating body G21 central through hole G22's is straight Footpath is more than the diameter of capacitance electrode, and floating body G21 floats on conducting liquid G31 on capacitance electrode by its through hole G22 strings and can With free floating in vertical direction,
Bottom electrode is located at insulating vessel G11 cavity volume inner surface bottom, and bottom electrode is always to maintain with conducting liquid G31 Contact,
It is powered to magnet coil G41, magnet coil G41 produces magnetic field G42, and magnet coil G41 can attract floating body G21 to make to float Body G21 sinks, and causes floating body G21 to arrange the conducting liquid G31 volume that arranges and increase, and then puts down conducting liquid G31 liquid Face rises and can increase the contact area between capacitance electrode and conducting liquid, this using branch as the subordinate sentence to end up in Upper described all parts are pertaining only to controlled capacitance；
The feature of controlled inductance is as follows：Including insulating vessel G11, conducting liquid G31, entity G21, bottom electrode G51, around Bar L10, inductance coil L1, magnet coil G41,
Insulating vessel G11 has stable shape, and insulating vessel G11 profile is cylindric, insulating vessel G11 cavity volume To be cylindric, change in shape is less likely to occur insulating vessel G11 cavity volume, and insulating vessel G11 is sealing container,
Conducting liquid G31 is housed in insulating vessel G11 cavity volume, and conducting liquid G31 volume is less than insulating vessel G11 Volume, the half of the volume of conducting liquid G31 volume more than insulating vessel G11,
Magnet coil G41, which is fixed, is wrapped in insulating vessel G11 outside, magnet coil G41 be located at insulating vessel G11 etc. More than stringcourse, the axis of magnet coil G41 axis and insulating vessel G11 coincides,
Wire rod L10 is cylindric and surface insulation, and wire rod L10 axis overlaps with insulating vessel G11 axis, electricity Sense coil L1, which is wrapped on wire rod L10, forms wire-wound inductor,
Entity G21 averag density is more than or equal to conducting liquid G31 density, and entity G21 has magnetic or paramagnetism, real For body G21 devices in insulating vessel, entity G21 outer surfaces are insulation, and entity G21 external volume is less than insulating vessel G11 Volume subtract conducting liquid G31 volume, entity G21 center has through hole G22, entity G21 central through hole G22's Diameter is more than the diameter of wire-wound inductor, and entity G21 is gone here and there by its through hole G22 and suspends or sink to the bottom in conducting liquid on wire-wound inductor G31 and can free floating in vertical direction,
Bottom electrode G51 is located at insulating vessel G11 cavity volume inner surface bottom, and bottom electrode G51 and conducting liquid G31 are total It is to maintain contact,
In the case that coil is not powered on, there is conductive contact between conducting liquid G31 and inductance coil L1,
It is powered to magnet coil G41, magnet coil G41 produces magnetic field G42, and magnet coil G41 can attract entity G21 to make reality Body G21 rises, and causes floating state changes of the entity G21 in conducting liquid G31 to be floating state, so that entity G21 is arranged That opens conducting liquid G31 arranges volume reduction, and then declines conducting liquid G31 fluid level and can reduce inductance coil L1 The number of turns flooded by conducting liquid G31, and increase inductance coil L1 number of active coils, above-described each portion in this subordinate sentence Part is pertaining only to controlled inductance；
Inductance drive module, electric capacity drive module are same drive modules, and its feature of this drive module is as follows：Including First resistor (R10), the first electric capacity C10, metal-oxide-semiconductor, second resistance R11, the second electric capacity C11, diode D10,
First resistor R10 is in parallel with the first electric capacity C10, and first resistor R10 one end is connected with the source electrode of metal-oxide-semiconductor, and first The end that resistance R10 is not connected with metal-oxide-semiconductor source electrode is the first input end of drive module, and second resistance R11 and the second electric capacity C11 are simultaneously Connection, second resistance R11 one end are connected with the drain electrode of metal-oxide-semiconductor, the end and two poles that second resistance R11 is not connected with metal-oxide-semiconductor drain electrode Pipe D10 negative pole is connected；
Sensing module resistance characteristic is as follows：Including the first sampling resistor R20, the second sampling resistor (R21), the first sampling electricity Resistance R20 is connected with the second sampling resistor R21, and the first sampling resistor R20 and the second sampling resistor R21 tie point are sensing module Signal output part, the end that the first sampling resistor R20 is not connected with the second sampling resistor R21 for sensing module sampling end, the The end that two sampling resistor R21 are not connected with the first sampling resistor R20 is the reference edge of sensing module；
The inductance coil L1 of controlled inductance is connected with the first input node INT+, and the two of the magnet coil G41 of controlled inductance End is connected with the diode D10 of inductance drive module both ends, the bottom electrode G51 of controlled inductance and the bottom electricity of controlled capacitance Extremely it is connected；
The appearance pole rod G50 of controlled capacitance is connected with sampled point P, and the magnet coil G41 of controlled capacitance both ends and electric capacity drive The diode D10 of dynamic model block both ends are connected；
Control module has the control signal output channel that at least two is capable of output pwm signal, and control module has at least One sampled signal input；
Power module has first input end IN+, the second input IN-, the first output end OT+, the second output end OT-；
The input of inductance drive module is connected with the first output end OT+ of power module, two poles of inductance drive module Pipe D10 positive pole is connected with the second output end OT- of power module；
The input of electric capacity drive module is connected with the first output end OT+ of power module, two poles of electric capacity drive module Pipe D10 positive pole is connected with the second output end OT- of power module；
The grid of the metal-oxide-semiconductor of inductance drive module is connected with control module control signal output channel；
The grid of the metal-oxide-semiconductor of electric capacity drive module is connected with control module control signal output channel；
The reference edge of sensing module is connected with the second output node OUT-；
Sampled point P is connected with the first output node OUT+；
The sampling end of sensing module is connected on sampled point P；
The signal output part of sensing module is connected with the sampled signal input of control module；
Have between control module and power module and be used to transmit being electrically connected for electric energy, power module can be to control mould Block provides electric energy.
The floating body G21 of described controlled capacitance inside has the cavity for being used for adjusting density.
Described controlled capacitance, the public electrode G51 of controlled inductance use the alloy containing tungsten to be made.
Described insulating vessel G11 is made up of glass.
Described control module is single-chip microcomputer.
There is filter capacitor C20 between the first output end OT+, the second output end OT- of described power module.
The pwm signal that inductance drive module is exported by single-chip microcomputer PIC12F510 controls, and then controls the induction reactance of controlled inductance Value.
The pwm signal that electric capacity drive module is exported by single-chip microcomputer PIC12F510 controls, and then controls the electric capacity of controlled capacitance Value.
Embodiment 4, a kind of electronic circuit, it is characterised in that：With the LC bandwidth-limited circuits described in embodiment 3.
The high-power light current power supply of embodiment 5, a kind of static, it is characterised in that：With the LC bands described in embodiment 3 Bandpass filter circuit.

Claims (7)

  1. A kind of 1. LC bandwidth-limited circuits, it is characterised in that：Including the first input node (INT+), the second input node (INT-), the first output node (OUT+), the second output node (OUT-), electric capacity drive module, controlled capacitance, inductance driving mould Block, controlled inductance, control module, sensing module, sampled point (P), power module；
    Controlled capacitance feature is as follows：Including insulating vessel (G11), conducting liquid (G31), floating body (G21), bottom electrode, Rong Ji Rod (G50), insulating barrier (G51), magnet coil (G41),
    Insulating vessel (G11) has stable shape, and the profile of insulating vessel (G11) is cylindric, the appearance of insulating vessel (G11) Chamber is cylindric, and change in shape is less likely to occur the cavity volume of insulating vessel (G11), and insulating vessel (G11) is sealing container,
    Conducting liquid (G31) is housed in insulating vessel (G11) cavity volume, and the volume of conducting liquid (G31) is less than insulating vessel (G11) volume, the volume of conducting liquid (G31) are more than the half of the volume of insulating vessel (G11),
    The fixed outside for being wrapped in insulating vessel (G11) of magnet coil (G41), magnet coil (G41) are located at insulating vessel (G11) Wait stringcourse below, the axis of the axis and insulating vessel (G11) of magnet coil (G41) coincides,
    It is cylindric electric conductor to hold pole rod (G50), and the axis for holding pole rod (G50) overlaps with the axis of insulating vessel (G11), is insulated Layer (G51) is covered in hold forms capacitance electrode on pole rod (G50),
    The averag density of floating body (G21) is less than the density of conducting liquid (G31), and floating body (G21) has magnetic or paramagnetism, floating body (G21) for device in insulating vessel, floating body (G21) outer surface is insulation, and the external volume of floating body (G21) is less than insulating vessel (G11) volume subtracts conducting liquid (G31) volume, and the center of floating body (G21) has a through hole (G22), in floating body (G21) The diameter of the through hole (G22) of centre is more than the diameter of capacitance electrode, and floating body (G21) is gone here and there on capacitance electrode by its through hole (G22) Float on conducting liquid (G31) and can free floating in vertical direction,
    Bottom electrode is located at the cavity volume inner surface bottom of insulating vessel (G11), and bottom electrode is always to maintain with conducting liquid (G31) Contact,
    It is powered to magnet coil (G41), magnet coil (G41) produces magnetic field (G42), and magnet coil (G41) can attract floating body (G21) floating body (G21) is sunk, and cause floating body (G21) to arrange the volume that arranges of conducting liquid (G31) and increase, and then make to lead The fluid level of electro-hydraulic body (G31) rises and can increase the contact area between capacitance electrode and conducting liquid, and this is with branch Controlled capacitance is pertaining only to as above-described all parts in the subordinate sentence of ending；
    The feature of controlled inductance is as follows：Including insulating vessel (G11), conducting liquid (G31), entity (G21), bottom electrode (G51), wire rod (L10), inductance coil (L1), magnet coil (G41),
    Insulating vessel (G11) has stable shape, and the profile of insulating vessel (G11) is cylindric, the appearance of insulating vessel (G11) Chamber is cylindric, and change in shape is less likely to occur the cavity volume of insulating vessel (G11), and insulating vessel (G11) is sealing container,
    Conducting liquid (G31) is housed in insulating vessel (G11) cavity volume, and the volume of conducting liquid (G31) is less than insulating vessel (G11) volume, the volume of conducting liquid (G31) are more than the half of the volume of insulating vessel (G11),
    The fixed outside for being wrapped in insulating vessel (G11) of magnet coil (G41), magnet coil (G41) are located at insulating vessel (G11) Wait stringcourse more than, the axis of the axis and insulating vessel (G11) of magnet coil (G41) coincides,
    Wire rod (L10) is cylindric and surface insulation, and the axis of wire rod (L10) overlaps with the axis of insulating vessel (G11), Inductance coil (L1) is wrapped on wire rod (L10) and forms wire-wound inductor,
    The averag density of entity (G21) is more than or equal to the density of conducting liquid (G31), and entity (G21) has magnetic or paramagnetism, For entity (G21) device in insulating vessel, entity (G21) outer surface is insulation, and the external volume of entity (G21) is less than insulation The volume of container (G11) subtracts conducting liquid (G31) volume, and the center of entity (G21) has through hole (G22), entity (G21) Central through hole (G22) diameter be more than wire-wound inductor diameter, entity (G21) by its through hole (G22) go here and there coiling electricity Suspend or sink to the bottom in sense in conducting liquid (G31) and can free floating in vertical direction,
    Bottom electrode (G51) is located at the cavity volume inner surface bottom of insulating vessel (G11), bottom electrode (G51) and conducting liquid (G31) contact is always to maintain,
    In the case that coil is not powered on, there is conductive contact, to magnet coil between conducting liquid (G31) and inductance coil (L1) (G41) it is powered, magnet coil (G41) produces magnetic field (G42), and magnet coil (G41) can attract entity (G21) to make entity (G21) Rise, and cause floating state change of the entity (G21) in conducting liquid (G31) to be floating state, so that entity (G21) is arranged That opens conducting liquid (G31) arranges volume reduction, and then declines the fluid level of conducting liquid (G31) and can reduce inductor wire The number of turns that circle (L1) is flooded by conducting liquid (G31), and increase inductance coil (L1) number of active coils, above institute in this subordinate sentence The all parts stated are pertaining only to controlled inductance；
    Inductance drive module, electric capacity drive module are same drive modules, and its feature of this drive module is as follows：Including first Resistance (R10), the first electric capacity (C10), metal-oxide-semiconductor, second resistance (R11), the second electric capacity (C11), diode (D10),
    First resistor (R10) is in parallel with the first electric capacity (C10), and one end of first resistor (R10) is connected with the source electrode of metal-oxide-semiconductor, the The end that one resistance (R10) is not connected with metal-oxide-semiconductor source electrode is the first input end of drive module, second resistance (R11) and the second electricity Hold that (C11) is in parallel, and one end of second resistance (R11) is connected with the drain electrode of metal-oxide-semiconductor, second resistance (R11) does not drain phase with metal-oxide-semiconductor End even is connected with the negative pole of diode (D10)；
    Sensing module resistance characteristic is as follows：Including the first sampling resistor (R20), the second sampling resistor (R21), the first sampling resistor (R20) it is connected with the second sampling resistor (R21), the tie point of the first sampling resistor (R20) and the second sampling resistor (R21) is biography Feel the signal output part of module, the end that the first sampling resistor (R20) is not connected with the second sampling resistor (R21) is sensing module Sampling end, the end that the second sampling resistor (R21) is not connected with the first sampling resistor (R20) are the reference edge of sensing module；
    The inductance coil (L1) of controlled inductance is connected with the first input node (INT+), the magnet coil (G41) of controlled inductance Both ends are connected with the both ends of the diode (D10) of inductance drive module, bottom electrode (G51) and the controlled capacitance of controlled inductance Bottom electrode is connected；
    The appearance pole rod (G50) of controlled capacitance is connected with sampled point (P), the both ends of the magnet coil (G41) of controlled capacitance and electric capacity The both ends of the diode (D10) of drive module are connected；
    Control module has the control signal output channel that at least two is capable of output pwm signal, and control module has at least one Sampled signal input；
    Power module has first input end (IN+), the second input (IN-), the first output end (OT+), the second output end (OT-)；
    The input of inductance drive module is connected with the first output end (OT+) of power module, the diode of inductance drive module (D10) positive pole is connected with the second output end (OT-) of power module；
    The input of electric capacity drive module is connected with the first output end (OT+) of power module, the diode of electric capacity drive module (D10) positive pole is connected with the second output end (OT-) of power module；
    The grid of the metal-oxide-semiconductor of inductance drive module is connected with control module control signal output channel；
    The grid of the metal-oxide-semiconductor of electric capacity drive module is connected with control module control signal output channel；
    The reference edge of sensing module is connected with the second output node (OUT-)；
    Sampled point (P) is connected with the first output node (OUT+)；
    The sampling end of sensing module is connected on sampled point (P)；
    The signal output part of sensing module is connected with the sampled signal input of control module；
    Have between control module and power module and be used to transmit being electrically connected for electric energy, power module can carry to control module Power supply energy.
  2. 2. LC bandpass filterings system as claimed in claim 1, it is characterised in that the inside of described controlled capacitance floating body (G21) With the cavity for adjusting density.
  3. 3. LC bandpass filterings system as claimed in claim 1, it is characterised in that：Described controlled capacitance, the bottom of controlled inductance Portion's electrode uses the alloy containing tungsten to be made.
  4. 4. LC bandpass filterings system as claimed in claim 1, it is characterised in that：Described control module is single-chip microcomputer.
  5. 5. LC bandpass filterings system as claimed in claim 1, it is characterised in that：First output end of described power module (OT+), there is filter capacitor (C20) between the second output end (OT-).
  6. A kind of 6. electronic circuit, it is characterised in that：With the LC bandwidth-limited circuits described in claim 1.
  7. A kind of 7. high-power light current power supply of static, it is characterised in that：With the LC bandwidth-limited circuits described in claim 1.
CN201510538463.8A 2015-08-28 2015-08-28 The high-power light current power supply of LC bandpass filterings system, LC bandwidth-limited circuits, electronic circuit, static Active CN105187028B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1901145A (en) * 2005-07-20 2007-01-24 联华电子股份有限公司 Variable capacitor structure and its producing method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8130053B2 (en) * 2009-04-02 2012-03-06 Telefonaktiebolaget Lm Ericsson (Publ) Tank tuning for band pass filter used in radio communications

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1901145A (en) * 2005-07-20 2007-01-24 联华电子股份有限公司 Variable capacitor structure and its producing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
基于DSP的无源LC滤波装置的改进;杨风开;《低压电器》;20080923(第13期);第46-48页 *

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