CN114374315A - Modulator facing miniaturized switching regulator - Google Patents

The invention relates to the technical field of modulation and demodulation, in particular to a modulator for a miniaturized switching regulator, which comprises a shell, wherein the periphery of the shell is detachably connected with a shielding plate, and the shielding plate is made of flexible materials; the utility model discloses a modulator, including switch turning voltage stabilizer and with switch turning voltage stabilizer electricity connection's branching unit, the embedded multistage branch that is equipped with branch effect in proper order of branching unit sets up the shielding plate in the casing periphery, can effectively carry out the isolated processing of modulator, will hide the shielding plate and set up to flexible material, can fine adaptation casing's operation scene, sets up the conversion that switch turning voltage stabilizer can high-efficiently carry out positive electricity and negative electricity simultaneously in the casing from last to having set gradually the functional component of mutual electricity connection and disturbing and slow down the subassembly down, including switch turning voltage stabilizer in the functional component and with the branching unit of switch turning voltage stabilizer electricity connection, the embedded multistage branch that is equipped with the branching unit in proper order of branching unit sets up the shielding plate in the casing periphery.

Modulator facing miniaturized switching regulator

Technical Field

The invention relates to the technical field of modulation and demodulation, in particular to a modulator for a miniaturized switching regulator.

Background

The voltage stabilizer is widely applied to a superheterodyne system and a detection system in mobile communication equipment, and the quality of an output power supply of the voltage stabilizer directly influences the signal stability in the system. The main parameters affecting the stability of the signal include system internal temperature, stray, phase noise, etc., wherein the system internal temperature is closely related to the conversion efficiency of the voltage stabilizer, and meanwhile, the phase noise of the signal is a very important performance index, which greatly affects the performance of the mobile communication equipment, and from the frequency perspective, the phase noise is distributed on both sides of the carrier signal and is distributed according to a power law spectrum.

The phases appear at a demodulation terminal in the same way as signals in the demodulation process, so that the signal-to-noise ratio of the system is reduced, a switching regulator needs to be introduced at the moment, the switching regulator is small in size and high in conversion efficiency, and the temperature in the system cannot be influenced. However, the disadvantages of switching regulators are also very significant: switching frequency of the switching regulator can be leaked, so that the quality of a power supply at an input end and an output end is influenced, and the quality of an internal signal of a system is directly deteriorated.

In the prior art, especially when the related design is performed on the modulator of the small-sized voltage regulator, many technical problems in the small-sized modulator actually need to be studied in depth because the skilled person cannot perform many studies on the small-sized modulator.

Disclosure of Invention

The invention aims to provide a modulator for a miniaturized switching regulator, which solves the problem that the modulator in the prior art cannot reasonably reduce phase noise and simultaneously perform positive and negative power supply time sequence processing.

The purpose of the invention is realized by the following technical scheme that the device comprises a shell, wherein the periphery of the shell is detachably connected with a shielding plate, and the shielding plate is made of flexible materials; the casing is interior from last to having set gradually the functional block of mutual electric connection and disturbing and slowing down the subassembly down, including switch turning voltage regulator and with the branching unit that switch turning voltage regulator electricity is connected in the functional block, the embedded multistage branch that is equipped with the branching effect in proper order of branching is divided.

It should be noted that the shielding plate is arranged on the periphery of the shell, so that the modulator can be effectively isolated, the shielding plate is made of flexible materials, the shielding plate can be well adapted to the operation scene of the shell, and the switch direction-changing voltage stabilizer can be arranged to efficiently convert positive electricity and negative electricity.

And a filtering unit used for removing a specific waveband is electrically connected to the upstream of the splitter, and the filtering unit is configured to receive an external waveband.

It should be noted that the operation of combining the splitter and the filtering unit can efficiently ensure the efficient clearing operation of the special band, improve the definition of the transmission frequency, and reduce the distortion rate of the signal and the like.

The switch turning voltage stabilizer comprises a positive electric switch and a negative electric switch which are used for adjusting voltage amplitude, and the positive electric switch and the negative electric switch are arranged in the switch turning voltage stabilizer in a surrounding mode.

It should be noted that the positive switch and the negative switch arranged in the switching regulator can accurately and correspondingly transmit positive and negative signals.

The negative electrical switch is configured to act unidirectionally on the positive electrical switch.

It should be noted that, the negative electricity switch acts on positive electricity switch in a single-way, does not have direct operation to contact between the positive electricity switch and the negative electricity switch among the prior art, and this application can guarantee the chronogenesis of power supply with negative electricity switch direct action behind positive electricity switch high-efficiently.

And a first power filter and a second power filter for filtering a specific waveband are arranged at intervals at the downstream of the switching direction changing voltage stabilizer.

It should be noted that, by providing the first power filter and the second power filter, the effective reduction of the signal-to-noise ratio can be ensured, and more interference frequency bands can be discharged.

The interference mitigation component is internally and electrically connected with a power ground, a third power filter and a common ground, and the frequency generated by the power ground is transmitted to the common ground through the third power filter.

The interference mitigation component is arranged to ensure that the interference frequency can be effectively reduced when the signal is connected to a common ground or the like.

The casing is provided with first access mouth and second access mouth on the terminal surface at interval, be provided with first external interface, second external interface and third external interface on another terminal surface of casing at interval.

It should be noted that, set up external interface and access mouth, can conveniently carry out external access, improve the convenient degree of connecting, prior art only alone the interface generally inserts and connects out, and the adaptation degree is obviously not high.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the shielding plate is arranged on the periphery of the shell, so that the modulator can be effectively isolated, the shielding plate is made of flexible materials, the flexible materials can be well adapted to the operation scene of the shell, and the switch turning voltage stabilizer can be arranged to efficiently convert positive electricity and negative electricity;

2. the combination operation of the branching unit and the filtering unit can efficiently ensure the efficient clearing operation of the special wave band, improve the definition of transmission frequency and reduce the distortion rate of signals and the like;

3. the interference mitigation component is arranged to ensure that the interference frequency can be effectively reduced when the signal is connected with a common ground and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic internal view of the splitter of the present invention.

Illustration of the drawings: 1-a first access port; 2-a second access port; 3-a first external interface; 4-a second external interface; 5-a third external interface; 6-mask plate.

Detailed Description

Referring to the accompanying drawings 1-3, this embodiment provides a modulator for a small-sized switching regulator, which is mainly used to solve the problem that the prior art modulator cannot perform positive and negative power supply timing processing while performing phase noise reduction reasonably, and is already in a practical experimental test stage.

Further, from last to having set gradually the functional unit of mutual electric connection and disturbing and slowing down the subassembly down in the casing, it needs to explain, the mode of setting up in the casing can be decided according to actual conditions, adopt from last to the mode setting down in this embodiment, can guarantee that public ground interference effect is lower, the reason is to disturb the below that the subassembly set up the functional unit, can guarantee to disturb that the content that slows down the subassembly and received has better frequency channel, disturb mixed and disorderly frequency channel and have handled in advance, wherein the principle of mixed and disorderly clear disturbance frequency channel of disturbance frequency channel is unanimous with prior art, no longer give unnecessary details here.

The functional components comprise a switch turning voltage stabilizer and a shunt electrically connected with the switch turning voltage stabilizer, wherein the shunt is embedded with a plurality of shunts with the function of shunting in sequence, the plurality of shunts mainly perform multi-stage processing of signal frequency, each shunt is a shunt for frequency, in the prior art, only one shunt is generally adopted, although the shunt can be performed, one shunt can easily ignore the problem and cannot well process the time sequence problem, particularly, when a signal voltage is transmitted to the shunt only one shunt, the situations of channel congestion and the like can be inevitably generated in short-time large-quantity signal transmission, at the moment, if only one shunt is provided, the frequency band of the signal and corresponding positive electricity and negative electricity can not perform reasonable and efficient time sequence separation and arrangement under the long-time large-quantity instant situations, and a plurality of shunt devices are designed to play the continuous buffering role, this is a point that is easy to ignore when the field is facing a small-sized regulator, and because various parameters are not corresponding in a modulator corresponding to the small-sized regulator, and multiple times of experiment matching replacement are usually caused, the buffer operation before the time sequence is easier to ignore, and the applicant has studied for a long time, and the problem is solved to the greatest extent.

The upstream electrical connection of the splitter is connected with a filtering unit for specific band removal, the filtering unit being configured to receive an outside band. The switch turning voltage stabilizer comprises a positive electric switch and a negative electric switch which are used for adjusting voltage amplitude, and the positive electric switch and the negative electric switch are arranged in the switch turning voltage stabilizer in a surrounding mode. The negative electricity switch is configured with a one-way positive electricity switch, the positive electricity switch and the negative electricity switch can effectively conduct positive and negative electricity guidance, the method of distinguishing the single guidance and subsequent auxiliary judgment in the prior art can effectively conduct positive and negative point guidance in a targeted manner, and the operation effect is improved.

And a first power filter and a second power filter for filtering a specific waveband are arranged at intervals at the downstream of the switching direction changing voltage stabilizer. The interference mitigation assembly is electrically connected with a power ground, a third power filter and a common ground, and a frequency generated by the power ground is transmitted to the common ground through the third power filter, it should be noted that referring to fig. 1 of the description, the third power filter is electrically connected between the power ground and the common ground, so that crosstalk generated by the switching frequency in the common ground can be effectively prevented, and the suppression of leakage of the switching frequency can reach more than 60 dBc.

According to the above contents, the applicant, in combination with the prior art, performs a comparative experiment to obtain the following comparative contents:

according to the comparison content, the signal stray and phase noise indexes in the system adopting the linear voltage stabilizer circuit are good, the design is complex, the size is large, the conversion efficiency is low, no power supply time sequence exists, the signal stability is poor, no overcurrent protection exists, the system adopting the traditional switching voltage stabilizer circuit is simple and easy to design, the size is small, the conversion efficiency is high, the signal stability is poor due to the deterioration of the stray and phase noise, no power supply time sequence exists, no overcurrent protection exists, the small-sized switching voltage stabilizer modulator provided by the invention is simple in circuit design, small in size, high in conversion efficiency, and has a power supply time sequence, and the signal stability is high due to the improvement of the stray and phase noise, and the overcurrent protection exists.