KR20180081974A - Smps for power amp based on compensation of ripple voltage and control method thereof - Google Patents

Abstract

A power supply device for a power amplifier for ripple voltage compensation comprises: a power supply unit supplying an AC voltage; a rectifier converting the AC voltage into a DC voltage including a ripple component; a ripple compensator generating a compensation voltage having a voltage which is linearly symmetric with respect to the ripple component on the basis of a reference voltage, and removing the ripple component included in the DC voltage by using the compensation voltage; a switching converter receiving and converting the DC voltage, from which the ripple component is removed, from the ripple compensator; and an amplifier unit receiving the DC voltage, from which the ripple component is removed, from the switching converter.

Description

TECHNICAL FIELD [0001] The present invention relates to a power supply for a power amplifier for compensating ripple voltage, and a control method thereof. [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply for a power amplifier used in an electronic apparatus, and more particularly, to a power supply for a power amplifier based on a ripple voltage compensation that can be used in a power amplifier such as a broadcasting system and a control method thereof .

Generally, an electronic device such as a broadcasting system requires a power amplifier for outputting sound to the outside, which includes a power supply, a rectifier, a switching converter, an amplifier (AMP), and a speaker .

1 is a block diagram of a conventional power supply for a power amplifier including a power supply unit 110, a rectifier unit 120, a switching converter 130, an amplifier unit 140, a speaker 150 and the like .

1, the rectifying unit 120 smoothes an AC voltage supplied from the power supply unit 110 and converts the AC voltage into a DC voltage. The switching converter 130 converts the AC voltage supplied from the power supply unit 110, And provides a function of switching the DC voltage to a voltage of an appropriate level required by the amplifier unit 140 and transmitting the switched DC voltage to the amplifier unit 140.

Here, the switching converter 130 is an unregulated bus converter (UBC), which is an uncontrolled converter that does not control and control the output voltage V _o in consideration of efficiency and performance.

The amplifier unit 140 amplifies the analog audio signal input from the preamplifier unit (not shown) to a predetermined level based on the DC power supply (amplifier power supply) supplied from the switching converter 130, And the speaker 150 audibly displays (outputs) the analog audio signal amplified to a predetermined level through the amplifier 140 and transmitted to the outside.

As is well known, when designing a switched mode power supply (SMPS) for the purpose of operating the amplifier, the following considerations must be considered.

First, the input capacitor (the capacitor behind the rectification stage) of the SMPS is subject to voltage drop due to power consumption.

Second, the SMPS of a general SMPS has a small variable width of the output load, but the variable load of the output load is very large according to the sound source (input signal) of the amplifier SMPS. At this time, when the SMPS can not guarantee the minimum voltage for a wide variable output load, the sound quality of the amplifier is degraded.

Therefore, the design of SMPS for amplifier should be designed so that the output voltage does not fall below a certain voltage even for widely varying output load.

FIG. 2 is a main operation waveform diagram of a power terminal for the power supply for a power amplifier shown in FIG. 1. FIG.

Referring to FIG. 2, the output voltage _Vo of the switching converter 130 drops instantaneously under a dynamic load condition. Here, the dynamic load condition (instantaneous load condition) means a situation in which a lot of loads are instantaneously not a continuous high load.

Therefore, in order to secure the output voltage V _o of the switching converter 130 to V _o.min or more, a non-isolation AC-DC converter may be used in parallel to the front end of the switching converter 130, The value of the output capacitor corresponding to the voltage V _o should be increased.

However, as described above, increasing the value of the capacitor for an instant load condition (dynamic load) rather than a continuous load condition has a disadvantage that the size and the price are greatly increased in reality.

Korean Patent No. 10-1289754 (Notification date: Feb. 2013, Feb. 26)

The present invention relates to a power supply for compensation of pulsating voltage that can compensate for an output voltage falling on an instantaneous load by inserting a converter in series without adding a capacitor to the output side of a switching converter (UBC) We propose a power supply for the amplifier and its control method.

The problems to be solved by the present invention are not limited to those mentioned above, and another problem to be solved by the present invention can be clearly understood by those skilled in the art from the following description will be.

According to one aspect of the present invention, there is provided a power supply apparatus comprising: a power supply unit for supplying an AC voltage; a rectifying unit for converting the AC voltage into a DC voltage including a ripple component; A ripple compensator for removing a ripple component included in the DC voltage using the compensation voltage, a switching converter for receiving and converting the DC voltage from which the ripple component has been removed, And an amplifier unit receiving the DC voltage from which the ripple component is removed from the switching converter.

The ripple compensator of the present invention can generate the compensation voltage as a DC voltage including a ripple component.

The ripple compensator of the present invention may be connected in series between the rectifying unit and the switching converter.

The ripple compensator of the present invention may be a flyback converter.

The ripple compensator of the present invention may be a forward converter.

The ripple compensator of the present invention may be a half bridge converter.

The ripple compensator of the present invention may be a full bridge converter.

The ripple compensator of the present invention may be a push-pull converter.

According to another aspect of the present invention, there is provided a method of driving a plasma display panel, comprising: converting an AC voltage supplied from a power supply unit to a DC voltage including a pulsating component; and applying a compensation voltage having a voltage that is line- A step of removing the pulsation component included in the DC voltage by using the generated compensation voltage, and a step of receiving the DC voltage from which the ripple component has been removed, A method of controlling a power supply for a power amplifier for voltage compensation is provided.

In the step of removing the ripple component of the present invention, the ripple component included in the DC voltage may be removed using a flyback converter.

In the step of removing the ripple component of the present invention, the ripple component included in the DC voltage may be removed using a flyback converter.

In the step of removing the ripple component of the present invention, the ripple component included in the DC voltage may be removed by using a forward converter.

In the step of removing the ripple component of the present invention, a ripple component included in the DC voltage may be removed using a half bridge converter.

In the step of removing the pulsation component of the present invention, the pulsation component included in the DC voltage may be removed using a full bridge converter.

In the step of removing the ripple component of the present invention, the ripple component included in the DC voltage may be removed using a push-pull converter.

The power supply device for a power amplifier according to the present invention can realize the following operational effects.

First, when the control compensation level is set to the peak of the input power source, the ripple component of the input power source can be effectively removed. As a result, the frequency component corresponding to the input voltage is not detected at the output of the amplifier AMP, May be possible.

Second, by inserting a converter in series without adding a capacitor to the output side of the switching converter (UBC) for dynamic load conditions, compensating for an output voltage dropping to an instantaneous load, the size of the amplifier device Size) can be suppressed from becoming unnecessarily large and the price of the amplifier device can be reduced.

1 is a block diagram of a typical conventional power supply for a power amplifier.
FIG. 2 is a main operation waveform diagram of the power terminal of the power amplifier for the power amplifier of FIG. 1; FIG.
3 is a block diagram illustrating a concept of a power supply for a power amplifier for compensating the ripple voltage according to the present invention.
4 is a main operation waveform diagram of a power terminal of the power amplifier for power amplifier of FIG.
5 is a block diagram illustrating a concept of a power supply for a power amplifier for compensating a ripple voltage according to a first embodiment of the present invention.
6 is an operation waveform diagram of V _rec and V _link according to the K ₁ and K ₂ gains in FIG.
7 is a diagram showing a part of a configuration of a power supply for a power amplifier using a forward converter as a ripple compensator according to a second embodiment of the present invention.
FIG. 8 is a diagram illustrating a configuration of a power supply for a power amplifier using a half bridge converter as a ripple compensator according to a third embodiment of the present invention.
9 is a diagram showing a part of a power supply for a power amplifier using a full bridge converter as a ripple compensator according to a fourth embodiment of the present invention.
10 is a diagram illustrating a configuration of a power supply for a power amplifier using a push-pull converter as a ripple compensator according to a fifth embodiment of the present invention.
11 is an experimental operational waveform diagram of each part that has been tested using a flyback converter as a ripple compensator.
12 is a waveform showing an experiment result in which the voltage _Vcom is compensated for a voltage falling below a certain level.
FIG. 13 is a waveform showing experimental results that can be compensated with a higher voltage when the voltage level is changed.

First, the advantages and features of the present invention, and how to accomplish them, will be clarified with reference to the embodiments to be described in detail with reference to the accompanying drawings. While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to intentions or customs of a user, an operator, and the like. Therefore, the definition should be based on the technical idea described throughout this specification.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

 FIG. 3 is a block diagram illustrating a concept of a power supply for a power amplifier for compensating a ripple voltage according to the present invention. FIG. 4 is a block diagram illustrating a main operation Fig.

3, the power supply for a power amplifier of the present invention includes a power supply unit 310, a rectification unit 320, a ripple compensator 330, a switching converter 340, an amplifier unit 350, (360), and the like.

Here, the present invention inserts in series circuit means (ripple compensator 330) for compensating the ripple voltage (ripple component) between the rectification part 320 and the switching converter 340, which is a dynamic load ) To compensate for V _o and V _link that fall with V _com .

That is, the power supply for power amplifier according to the present invention can prevent the increase in the total size due to the capacitor because the ripple compensator compensates the ripple voltage without adding a capacitor as in the conventional method described above. Has the advantage that the power is particularly advantageous for application to relatively large power amplifiers.

Here, the pulsation component may mean a component including both a pulsation component occurring every 120 Hz and a pulse component for 500 msec in which a voltage drop due to a large load is generated for 20 msec in 500 msec, for example. Such a ripple voltage can be efficiently compensated by using a compensator.

First, the power supply unit 310 may provide a function of supplying an amplifier power used in an electronic device such as a broadcasting system or the like.

The rectifying unit 320 may include a plurality of diodes or the like and may convert an AC voltage supplied from the power supply unit 310 to a DC voltage including a ripple component and output the converted DC voltage. Here, the _Vrec voltage at the rectification part output side may be defined as the first voltage.

Next, the ripple compensator 330, which can be defined as an insulation type compensation voltage source, is disposed in series between the output side of the rectification part 320 and the input side of the switching converter 340, which will be described later, A compensation voltage having a voltage that is linearly symmetric with respect to the reference voltage is generated from the ripple component of the first voltage _Vrec , that is, the voltage of the ripple component. Using the generated compensation voltage, Removal of components, and the like. Here, the V _link voltage from which the ripple component has been removed can be defined, for example, as the second voltage.

To this end, the ripple compensator 330 may include, for example, a flyback converter, an active clamp forward converter, an inverse freezer converter, a half bridge converter, a full bridge converter, and a push pull converter.

Referring to FIG. 4, the power to be supplied by the compensation voltage V _com is P _com = V _com ㅧ I _in , and the magnitude of the V _com voltage corresponding to the pulsation component is relatively small, so that P _com is also not large.

As an example, assuming that V _AC is 220 V rms and the magnitude of the ripple component of the input voltage V _rec of the 1,200 W class amplifier is about 30 V, the maximum power that a conventional non-isolated AC / DC converter has to take is 1,200 be W, but the maximum power to the compensation voltage V _com of the present invention is to bear is approximately 52W.

Accordingly, the present invention is the system efficiency, the amplifier unit as compared with the conventional amplifier apparatus using, non-isolated AC / DC converter because a small converter (ripple compensator) of small capacity to compensate the pulse component of the input voltage V _rec, size , It has a relatively large advantage in terms of price.

Next, the switching converter 340 is an insulation type UBC (Unregulated Bus Converter) including a transformer, for example. The switching converter 340 converts the DC voltage from which the ripple component has been removed through the ripple compensator 330, (Switching) the voltage to the amplifier unit 350, and the like. Here, the switching converter 340 is a non-control converter that does not control the output voltage V _o by feedback in consideration of efficiency and performance.

The amplifier unit 350 amplifies the analog audio signal input from the preamplifier unit (not shown) to a predetermined level based on the DC voltage (amplifier power) from which the ripple component supplied from the switching converter 340 is removed And a D / A converter for converting the audio signal input from the preamplifier to an analog audio signal when the audio signal is a digital audio signal.

The speaker 360 may include a component such as a noise removing circuit or the like and may be configured to audibly display an analog audio signal amplified and delivered to a predetermined level through the amplifier 350 Output), and the like can be provided.

Next, a description will be given of a case where a flyback converter, an active clamp forward converter, an inverter free converter, a full bridge converter, and a push-pull converter are used as the ripple compensator according to various embodiments of the present invention.

In Figure 5 is the K ₁ and K ₂ the gain shown in the first embodiment and the block diagram for explaining a concept of a power amplifier, the power supply for the for the pulsating voltage compensation in accordance with an example, Fig. 6 Fig. 5 of the present invention an operation waveform of V and V _{rec link} according to Fig.

5, the power supply for a power amplifier according to the first embodiment includes the same components as those of the power supply for power amplifier of FIG. 3 except that the flyback converter 530 is used as a ripple compensator .

Thus, the same components 510, 520, 540, 550, 560 as those of the components 310, 320, 340, 350, 360 shown in FIG. 3 perform substantially the same function, Avoid unnecessary redundant substrates for the same Detailed description of the same constituent members is omitted.

First, the flyback converter 530 includes a transformer 531, a _Vrec peak detector 532, a mixer 533, a PI compensator 534, a pulse width modulator (PWM) 535, a MOSFET 536, D _ch is a diode for initial charging of the V _link voltage (the second voltage) at the time of the initial start-up, and operates only at the time of the initial start-up (i.e., initial and continuously current flow) V _com > 0 at the time of blocking. Here, the flyback converter 530 can be defined, for example, as a power converter circuit topology of a ripple compensator.

To this end, the peak value of the input voltage V _rec (first voltage) is detected through the V _rec peak detector 532 and then the gain K ₁ is changed to the input (command) of the PI compensator 534 through the mixer 533 And constitutes a negative feedback path for detecting the link voltage V _link (second voltage) and changing it to a gain K ₂ and then applying it to the input of the PI compensator 534 through the mixer 533, (M _com gate signal) of the MOSFET 535 is applied to the gate input of the MOSFET 536. Here, the link voltage V _link at the time of initial driving is a voltage generated across both ends of the constant voltage element _Dch .

Referring to FIG. 6, the relationship between the first voltage V _rec and the second voltage V _{link is} shown according to the values of the gains K ₁ and K _{2. The} V _link voltage is adjusted by adjusting the values of K ₁ and K ₂ It can be seen clearly.

7 is a diagram showing a part of a configuration of a power supply for a power amplifier using a forward converter as a ripple compensator according to a second embodiment of the present invention.

7, the power supply for a power amplifier according to the second embodiment differs from the first embodiment described above in which the flyback converter 530 is used as a ripple compensator, except that the forward converter 730 is used But all the other constituent members are substantially the same as the corresponding constituent members of the first embodiment.

Therefore, the same structural elements of Fig. 7 as those of the structural elements shown in Fig. 5 perform substantially the same function, so that detailed description of the same structural elements is omitted to avoid unnecessary duplicate description for simplification of the description.

However, the forward converter 730 composed of a plurality of electronic elements including a transporter has the flyback converter 530 of the above-described first embodiment in which current is charged while the primary side of the transformer is turned off, The effect is substantially the same as that of the amplifier device for an electronic device according to the first embodiment (the effect of eliminating the ripple component), the difference in that the charging is performed while the current flows in the secondary side when the primary side of the transformer is turned on ) Can be obtained.

The forward converter 730 may be referred to by various names such as a two-switch forward converter, an active clamp forward converter, etc. according to the method of resetting the magnetizing current of the transformer.

FIG. 7 shows an example of a method of resetting the energy of a transformer, which is referred to as an active clamp forward converter because it uses one switch and one clamp capacitor.

Referring to FIG. 7, Q ₁ is turned on first in the circuit, energy is transferred to the output side, Q ₁ is turned off, and Q ₂ is turned on to reset the magnetizing current of the transformer. The forward converter 930 is a converter that repeats this operation, and has the advantage that it is suitable for designing a relatively large power, while a small number of elements are included as compared with the flyback converter.

FIG. 8 is a diagram illustrating a configuration of a power supply for a power amplifier using a half bridge converter as a ripple compensator according to a third embodiment of the present invention.

8, the power supply for a power amplifier according to the third embodiment uses a half bridge converter 830, unlike the above-described first embodiment in which the flyback converter 530 is used as a ripple compensator All the constituent members except for the point are substantially the same as the corresponding constituent members of the first embodiment.

Therefore, since the constituent members of FIG. 8 identical to the constituent members shown in FIG. 5 perform substantially the same function, detailed descriptions of the same constituent members are omitted to avoid unnecessary duplicate description for simplification of the specification.

However, the half bridge converter 830 composed of a plurality of electronic elements including a transporter is not limited to the flyback converter 530 of the above-described first embodiment in which electric current flows in the secondary side when the primary side of the transformer is turned off The difference is that the charging is performed while the current flows in the secondary side when the primary side of the transformer is turned on. In addition, the same effects as those of the amplifier device for an electronic device of the first embodiment Effect) can be obtained.

Referring again to FIG. 8, the switches Q ₁ and Q ₂ are turned on / off at a ratio of 50:50. When the switch Q ₂ is turned on, a voltage of V _rec / 2 is applied to the transformer, When the switch Q ₂ is turned off and Q ₁ is turned on, a voltage of -V _rec / 2 is applied and energy is transferred to the output side. A switch and a diode are added to the flyback converter and the forward converter described above and are suitable for a higher power (for example, 200 W or more).

9 is a diagram showing a part of a power supply for a power amplifier using a full bridge converter as a ripple compensator according to a fourth embodiment of the present invention.

9, the power supply for a power amplifier according to the fourth embodiment uses a full-bridge converter 930, unlike the above-described first embodiment in which the flyback converter 530 is used as a ripple compensator All the constituent members except for the point are substantially the same as the corresponding constituent members of the first embodiment.

Therefore, the constituent members of FIG. 9, which are the same as the constituent members shown in FIG. 5, perform substantially the same function, so that detailed description of the same constituent members is omitted for avoiding unnecessary duplicate description for simplification of the description.

However, the full bridge converter 930 composed of a plurality of electronic elements including a transporter is not limited to the flyback converter 530 of the above-described first embodiment in which current is charged while the primary side of the transformer is turned off. The difference is that the charging is performed while the current flows in the secondary side when the primary side of the transformer is turned on. In addition, the same effects as those of the amplifier device for an electronic device of the first embodiment Effect) can be obtained.

Referring again to FIG. 9, four switches Q ₁ , Q ₃ / Q ₂ , and Q ₄ are turned on and off in pairs and the duty ratio is 50:50. When Q ₁ and Q ₃ are on, _Vrec voltage is applied across the transformer and energy is transferred to the output side. After Q ₁ and Q _{3 turn} off and Q ₂ and Q ₄ turn on, the -V _rec voltage across the transformer The transformer is reset and energy is delivered to the output side.

It is a matter of course that the phase shift full bridge converter, which is a method of controlling the phase, not the method of controlling the tune, can be applied as a basic full bridge converter operation. Here, the phase shift full bridge converter has the same circuit as the full bridge converter and adjusts the timing of Q ₁ and Q ₃ / Q ₂ and Q ₄ so that the timing at which both switches are turned on at the same time.

10 is a diagram illustrating a configuration of a power supply for a power amplifier using a push-pull converter as a ripple compensator according to a fifth embodiment of the present invention.

10, the power supply for a power amplifier according to the fifth embodiment uses a push-pull converter 1030, unlike the above-described first embodiment in which the fly-back converter 530 is used as a ripple compensator All the constituent members except for the point are substantially the same as the corresponding constituent members of the first embodiment.

Therefore, the same structural elements of Fig. 10 as those of the structural elements shown in Fig. 5 perform substantially the same function, so that detailed description of the same structural elements is omitted to avoid unnecessary redundant description for simplification of the specification.

However, the push-pull converter 1030 composed of a plurality of electronic elements including a transporter is not limited to the flyback converter 530 of the above-described first embodiment in which current is charged while the primary side of the transformer is turned off. The difference is that the charging is performed while the current flows in the secondary side when the primary side of the transformer is turned on. In addition, the same effects as those of the amplifier device for an electronic device of the first embodiment Effect) can be obtained.

Referring again to FIG. 10, push-pull converter 1030 has Q ₁ and Q ₂ alternately on / off and duty ratio of 50: 50, similar to the bridge type converter described above.

The push-pull converter 1030 is a converter _{in which} a voltage V _in / n is applied to the secondary side when the winding ratio of the transformer is n: 1, as _{in the} full bridge converter, It is the topology that can get effect. When Q ₁ is turned on, V _in / n is applied to the transformer on the secondary side and energy is transferred to the output side. Then Q ₁ is turned off and Q ₂ is turned on, and -V _in / n is applied Energy is transferred to the output side.

The inventors of the present invention have conducted experiments by applying a flyback converter as a ripple compensator, and waveform diagrams of the results are shown in FIGS. 11 to 13. FIG.

11 is an experimental operational waveform diagram of each part that has been tested using a flyback converter as a ripple compensator.

11, the same manner as described theoretical consideration as, but represents the pulse component of approximately 13V ripple of V _rec voltage according to the conventional method, when to apply a flyback convert a ripple compensator according to the present invention V _link It was clearly confirmed that the ripple component of the voltage was greatly reduced.

FIG. 12 is a waveform showing an experiment result in which a voltage V _com is compensated for a voltage falling below a certain level, and FIG. 13 is a waveform showing an experimental result that can be compensated with a higher voltage when the voltage level is changed.

When 12 and 13, were has a 500msec period when as a result of the experiment if larger load conditions be when the compensator is to some extent compensate for the voltage for 20msec, the inventors of the present invention see a V _link when low voltage level of about It can be seen that 25V drops, but when we change the voltage level to compensate more, we can confirm that the ripple is about 18V which is a little less than 20V.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. It is easy to see that this is possible. That is, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention.

Therefore, the scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

310, 510, 710, 810, 910, 1010: power supply unit
320, 520, 720, 820, 920, 1020:
330: ripple compensator
340, 540: switching converter
350, 550: Amplifier part
360, 560: Speaker
530: flyback converter
730: Active Clamp Forward Converter
830: Half bridge converter
930: Full bridge converter
1030: Push-Pull Converter

Claims (15)

A power supply for supplying AC voltage,
A rectifier for converting the AC voltage into a DC voltage including a pulsating component;
A ripple compensator for generating a compensation voltage having a voltage that is a line symmetry with respect to the voltage of the ripple component and removing the ripple component included in the DC voltage using the compensation voltage,
A switching converter for receiving and converting the DC voltage from which the ripple component has been removed from the ripple compensator,
And an amplifier unit receiving the DC voltage from which the ripple component is removed from the switching converter,
A power amplifier for power amplifier for pulsating voltage compensation.
The method according to claim 1,
Wherein the ripple compensator comprises:
The compensation voltage is generated as a DC voltage including a ripple component
Power supply for power amplifier for ripple voltage compensation.
The method according to claim 1,
Wherein the ripple compensator comprises:
And a rectifying unit connected in series between the rectifying unit and the switching converter
Power supply for power amplifier for ripple voltage compensation.
The method according to claim 1,
Wherein the ripple compensator comprises:
Flyback converter
Power supply for power amplifier for ripple voltage compensation.
The method according to claim 1,
Wherein the ripple compensator comprises:
Forward converter
Power supply for power amplifier for ripple voltage compensation.
The method according to claim 1,
Wherein the ripple compensator comprises:
Half bridge converter
Power supply for power amplifier for ripple voltage compensation.
The method according to claim 1,
Wherein the ripple compensator comprises:
Full bridge converter
Power supply for power amplifier for ripple voltage compensation.
The method according to claim 1,
Wherein the ripple compensator comprises:
Push-pull converter
Power supply for power amplifier for ripple voltage compensation.
Converting the AC voltage supplied from the power supply unit into a DC voltage including a ripple component,
Generating a compensating voltage having a voltage that is line-symmetric with respect to a voltage of the pulsating component with respect to a reference voltage;
Removing the ripple component included in the DC voltage using the generated compensation voltage,
A step of receiving the DC voltage from which the ripple component has been removed, converting the DC voltage, and supplying the DC voltage to the amplifier unit
Wherein the power amplifier comprises a plurality of power amplifiers.
10. The method of claim 9,
Wherein the step of removing the pulsation component comprises:
A flyback converter is used to remove the ripple component included in the DC voltage
Control Method of Power Supply for Power Amplifier for Pulsating Voltage Compensation.
10. The method of claim 9,
Wherein the step of removing the pulsation component comprises:
A flyback converter is used to remove the ripple component included in the DC voltage
Control Method of Power Supply for Power Amplifier for Pulsating Voltage Compensation.
10. The method of claim 9,
Wherein the step of removing the pulsation component comprises:
The forward converter is used to remove the ripple component included in the DC voltage
Control Method of Power Supply for Power Amplifier for Pulsating Voltage Compensation.
10. The method of claim 9,
Wherein the step of removing the pulsation component comprises:
The ripple component included in the DC voltage is removed using a half bridge converter
Control Method of Power Supply for Power Amplifier for Pulsating Voltage Compensation.
10. The method of claim 9,
Wherein the step of removing the pulsation component comprises:
The full-bridge converter is used to remove the ripple component included in the DC voltage
Control Method of Power Supply for Power Amplifier for Pulsating Voltage Compensation.
10. The method of claim 9,
Wherein the step of removing the pulsation component comprises:
The pulse component included in the DC voltage is removed using a push-pull converter
Control Method of Power Supply for Power Amplifier for Pulsating Voltage Compensation.

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