1. The power amplifier itself is almost totally performed on the chip and this makes construction very straight forward.

2. In a power amplifier the load would normally be a 8ohm loudspeaker.

3. There are connections for an external power amplifier or powered subwoofer.

4. Purpose: Power amplifier, TV vertical deflection output.

5. Silicon complementary PNP transistor. Audio power amplifier.

6. Purpose: Strobe flash applications , audio power amplifier applications.

7. Purpose: High power amplifier application.

8. So linear power amplifier is adopted.

9. Purpose: Audio frequency power amplifier and switching applications.

10. Purpose: Audio frequency and high frequency power amplifier.

11. PNP epitaxial silicon transistor. Low frequency power amplifier.

12. Purpose: Audio frequency power amplifier applications.

13. Purpose: audio power amplifier and driver stage amplifier applications.

14. Purpose: Strobe flash applications ,() general power amplifier applications.

15. Purpose: Strobe flash, medium power amplifier applications.

16. Silicon complementary PNP transistor. Darlington power amplifier.

17. Purpose: Audio frequency power amplifier and driver.

18. A 4 ~12 GHz wideband power amplifier , using a balanced line Lange coupler, is designed and fabricated.

19. A kind of predistortion power amplifier by two radio frequency transistors reciprocal compensating was designed. And the temperature compensation circuit was presented.

20. Filterless, 2.65 W , Mono, Class D Audio Power Amplifier.

21. Two types of power amplifier for measuring speaker impedance curve were analysed.

22. If we analyses the mostly contradiction of the high frequency power amplifier, we can find load characteristic curve and the salient features of it in any condition.

23. Predistortion linearization technology is conceptually the simplest form of linearization for an RF power amplifier.

24. The transmitter of T/R module consists of phase shifter, attenuator, high power amplifier, and the receiver is composed by low noise amplifier, phase shifter, attenuator.

25. A fast electromagnetic deflection amplifier is essentially a wideband power amplifier. It is mainly used for driving the power stage of the magnetic deflection system in highspeed CRT display.

26. Using timing and interrupt function of the AT 89 C 51 single - chip microcomputer and the LM 386 audio power amplifier.

27. A scheme of transmitter is proposed, which consists of a semiconductor laser master oscillator and an EDFA optical power amplifier (MOPA).

28. This paper introduces the design and fabrication of a Lb and broadband linear power amplifier assembly.

29. The limiting current protection and temperature protection of MOSFET and linear power amplifier is the emphasis of discussion.

30. In this paper, a new kind of digital audio power amplifier on DDX is proposed and tested, which is UPA001 not only with a USB digital audio interface and but an analog audio interface.

31. Include the oscillator, modulator, upper frequency transformer, wave filter, power amplifier like X - mitter.

32. The digital Phase-locked loop for speed regulation is made up of digital comparator, voltage-controlled oscillator, low pass filter, thyristor power amplifier and other components.

33. Adaptive digital predistortion is an effective technique which compensate nonlinear distortion introduced by the high power amplifier (HPA).

34. The single-channel multipolar resolver is used as the angle sensor and the monolithic high-power pulse width modulation(PWM) power amplifier is also used.

35. Use the MAIN B section and outputs to connect to a separate power amplifier and multiple loudspeakers, or to a stereo recording system.

36. How to cancel carrier and detect the intermodulation distortion signal of power amplifier will be discussed.

37. The effect of base bias resistors on the parameters of PA(power amplifier)was simulated.

38. The development of microwave communication has brought forward the demand of high quality linear high power amplifier.

39. The audio signal amplified by the gain of one and then the second power amplifier RP enlarge, and OUTB output.

40. This thesis presents a design of low power class AB audio power amplifier.

41. A new high voltage restraint mode which is different from traditional driver is used in power amplifier.

41. Wish you can benefit from our online sentence dictionary and make progress day by day!

42. The MW SSB stereo broadcasting system requires high efficiency of the transmitter which usually employs high power amplifier, as the high quality of information transmission is important.

43. The linear power amplifier of current-type and the PIDcontroller is designed for the control of radial force.

44. Figure 1 is the OCL Principle stereo power amplifier circuit.

45. In the AMB system, a power amplifier which provides magnetic coil with exciting current to produce electromagnetic force, is one of the main components.

46. A multi-stage UHF broadband linear high power amplifier(PA) is designed for the application as an electromagnetic environment simulator.

47. The thesis introduces power amplifier theory, PHEMT model and model parameter exaction method, at last determined scheme of three-stage MMIC power amplifier.

48. The causes of the phenomena are explored by studying the characteristics of audio frequency power amplifier and the pulse modulation of the high-frequency switch power supply.

49. The power amplifier contains dynamic control bias circuits and a fully integrated power detector.

50. However, the OFDM system is sensitive to the nonlinearity of Power Amplifier(PA) since it has the high Peak-to-Average Power Ratio(PAPR).

51. This thesis presents a design of low power class AB, dual audio power amplifier.

52. The audio power amplifier uses integrated chip LM 386, the voltage amplification factor is 200 most greatly.

53. A kind of new sliding mode control method for current type power amplifier is put forward.

54. The power of the modulated carrier wave is increased by the RF power amplifier.

55. A new evaluation approach for the in-band nonlinear distortion, which is formed by the orthogonal frequency division multiplex (OFDM) signal passing through the high power amplifier, is presented.

56. A high power filter (38) is located downstream of the power amplifier (20) and causes linear distortion.

57. The system consists of phantom, signal source block, power amplifier block, measuring mode setting block, high accuracy amplifier and high speed demodulator.

58. This highly compact transceiver chipset consists of low noise amplifier, power amplifier with detector, voltage controlled oscillator with buffer amplifier, mixer and harmonic mixer.

59. This paper presents the development and status of linear power amplifier. Principle and circuit of predistortion feedforward and building blocks are introduced.

60. The MAPRST0912-50 is a 50Wpk Class C, silicon bipolar pulse power transistor designed specifically for driver stages in pulse power amplifier applications over the 960 to 1215 MHz bandwidth.

61. The circuits include low-noise amplifier, power amplifier, mixer, oscillator and passive control circuit such as switch.

62. Based on the conventional Class-E resonant high-frequency power amplifier, a new control scheme used in Active-clamped Class-E inverter for ultra-high frequency induction heating is proposed.

63. A gating circuit of the power amplifier was introduced, this method successfully solutes the high noise defection of present power amplifier.

64. We main product have ACCarr series multi - channel automobile active power amplifier, the home theater, switch power.

65. An improved current-controlled tristate switching power amplifier based on sample-hold strategy is proposed in this paper.

66. PNP planar silicon transistor. Audio power amplifier DC to DC converter.

67. Feedforward is the most ideal way to perform broadband high power amplifier, which can accomplish more stringent linear specifications.

68. The entire circuit is mainly comprised of regulated power supply, preamplifier and power amplifier, among which LM4766 is a stereo audio amplifier using dual power supply application circuit.

69. In intelligent peripheral subsystem, Radio Frequency Front Modules include linear power amplifier, low noise amplifier and detection control circuit.

70. The dynamic force generator is based on the vibration exciter which is used as the actuator to get the needed dynamic force with the corresponding signal generator and power amplifier.

71. A master oscillator power amplifier (MOPA) structured pulsed fiber laser is reported.

72. However, the MC-CDMA system inherits the problem on the higher peak-average power ratio (PAPR) in the OFDM systems(sentence dictionary), which will result in the nonlinear distortion in a high power amplifier (HPA).

73. The development of microwave technology has created a demand for highly linear high power amplifier.

74. The utility model is composed of a guard circuit, an oscillating circuit, a power amplifier circuit, a volume control circuit, an accident noticing circuit, etc.

75. A general approach to analysis of class E tuned power amplifier with anti-parallel diode at switch is presented.

76. The design of microwave power amplifier needs large-signal S parameters, but under most circumstances, the designer only has small-signal S parameters and the static I-V curve.

77. Application of predistortion technology in CDMA2000 system is discussed in this paper. And a practical digital predistortion system is proposed to improve linearity and efficiency of power amplifier.

78. The weight and volume of the power electronics equipment will be minished greatly by using switch-mode power amplifier instead of the traditional linear power amplifier.

79. This paper presents the principles and characteristics of the following modules: power amplifier, phase modulator and up converter, which are used in the transmitter of 1GHz microwave relay system.

80. In the system, an electronic circuit for reducing harmonics of an output signal from a power amplifier in a transmission circuit for a wireless communication device is provided.

81. As the amplifier tuned load circuit, they are able to select the base component cosine pulse to obtain undistorted amplification signal output, so this amp is also known as tuned power amplifier .

82. Based on its transfer characteristic, a new technique for reducing the nonlinearity of RF power amplifier is presented.

83. In the design of hardware, the paper details in introducing the reader circuit and function module, especially the theory and method of design in D-type power amplifier, Manchester code and coil.

84. But the OFDM signal has a large PAPR, which results in the significant nonlinear distortion when it passes through a HPA (high power amplifier), thereby the performances of the system descend.

85. They could also be served as a driver amplifier because of its good dynamic range and linearity and could be associated with another one to build up a wideband high power amplifier.

86. In the controller design section, the design process of the power supply circuit, Hall sensor circuit, control circuit, power amplifier circuit is introduces. iv.

87. In order to get the adaptive ability for the feed-forward power amplifier, this paper presents a design of feedforward power amplifier based on pilot signal with a single-chip microcomputer.

88. The subcircuits consist of the low noise amplifier, RF filter, mixer, driver amplifier, image filter, power amplifier, transmit-receive switch and IF filter and so on.

89. A network synthesis method of microwave solid state power amplifier impedance matching circuit is introduced in this paper.

90. In the orthogonal frequency division multiplexing(OFDM) transmission system, an adaptive pre-distortion method for high power amplifier(HPA) was studied.

91. After comparing Linear Power Amplifier with PWM Power Amplifier, PWM Power Amplifier is selected as control signal's power amplifier part.

92. And then the paper introduces the design of power amplifier and DC regulated power supply.

93. The power supply with high dynamic response employs a high - voltage DC amplifier and a power amplifier.

94. The system comprises a microwave chaotic signal source circuit, a wideband power amplifier and an ultra-wideband double-ridge horn antenna.

95. We report on hundred watts range ytterbium-doped all-fiber laser assembly based on the master oscillator power amplifier structure.

96. One disadvantage of MC-CDMA is the high Peak-to-Average Power Ratio (PAPR) that results in nonlinear distortion at a high power amplifier (HPA) and the degradation of the bit error rate (BER).

97. Purpose: Audio frequency low power amplifier, driver stage amplifier, switching applications.

98. This paper puts forward an over current protection circuit for CMOS class - D audio power amplifier applications.

99. The present invention compensates the non-linear distortion of RF power amplifier in form of out of band compensating signal.

100. The digital control system and the relation of A/D converter, bearing position transducer, power amplifier, and calculate way of control are analyzed and designed.

101. Linear power amplifier has low distortion and good linearity, but it has high loss and so low efficiencies./power amplifier.html

102. A new look - up - table memory predistorter for power amplifier with memory effects is proposed.

103. A high quality audio power amplifier is disclosed, whose quality features the dynamic nature of transistor and the sounds quality of electronic tube. Its key technique is use of C.

104. With the widely use of CD, MP3, DVD, cell phone and HDTV, digital audio power amplifier (DAPA) prevails in audio amplifier field for its high efficiency, low distortion, low cost and portability.

105. RF predistortion is the main power amplifier linearization technique used for wideband repeater at present.

106. To design an L-band low harmonics distortion power amplifier, this paper simulates and optimizes linear and nonlinear circuits.

107. A diode-pumped electro-optic(E-O) Q-switched master oscillator power amplifier(MOPA) all-solid-state green laser with high repetition rate and high pulse energy is demonstrated.

108. Finally, the antenna, ASK modulation, power supply of the tag, load impedance modulation, demodulation, power supply sensor and HF power amplifier were realized.

109. The over-current protective device designed bad will astrict the output of a power amplifier devicing a complex load.

110. KTV professional amplifier, power amplifier civilian high(), medium and low-end package of software and hardware development.

111. In this paper a new type of cascode HF resonant Eclass power amplifier using double triode is presented. The construction, character, working state and theorem of this circuit are also described.

112. It is named as switch-linearity hybrid technology abbreviated as SLH. In this technology, modulated PWM source, LC filter and linear power amplifier in some mode such as B or AB classic are used.

113. Purpose: Low frequency power amplifier , medium speed switching applications.

114. With the continuous advancement of technology, design, D-type power amplifier performance is also moving into the Class AB amplifier.

115. Based on these sub-circuits, the T/R module is constructed on one base board except the high power amplifier.

116. We depend on the foreign technology for the broadband solid-state high power amplifier for reconnaissance and communication.

117. The control circuit used very efficient PID modulation and anticipatory control so the power amplifier had little distortion and fast dynamic response.

118. On this basis, by using logical cooling means and superheat protect means, we design and implement a UHF broadband solid-state high power amplifier.

119. If we simply back-off the input signal to achieve the linearity required for the power amplifier, the power amplifier efficiency will be very low for high PAR signals.

120. Connect the Power Amplifier to Analog Channel B of the interface.

121. Expounds the principle of audio frequency power amplifier is designed for manostat, preamplifier, volume control, power amplifier four parts digital power amplifier megaphone.

122. Two power amplifier output stage using PMOS and NMOS transistors by the special design.

123. The high linear power amplifier has to be used to guarantee communication quality. Unfortunately, power efficient amplifiers are typically nonlinear.

124. The design for high-power MOS tube as the core original pipe, using discrete components and integrated operational amplifier combines the low-frequency power amplifier design.

125. The power amplifier (12) has a fixed gain mode and a variable gain mode used for the two modulation formats, respectively.

126. The electronics of the cavity dumper driver consists of a frequency source, a pulse modulator and a power amplifier.

127. A rectifier and filter circuit, power amplifier, driving circuit is designed.

128. Purpose: Audio frequency power amplifier and low speed switching applications.

129. The OFDM system has a major disadvantage that high peak to average power ratio (PAPR) can cause nonlinear distortion in the high power amplifier (HPA).

130. DC high voltage amplifier developed using amplitude modulation includes an amplitude modulator, a power amplifier, a step-up transformer,[] and a linear detector.

131. The current type PWM controller UC3842 is used as control core in power amplifier design to produce PWM signals that control times of analog switch.

132. The traditionary linear power amplifier has been washed out for its low efficiency and big size.

133. After the class as a C9018, 1 months C3355 and the C2053 has a three-level power amplifier circuit by the LC filter resonant antenna then launch by transmitting aerial.

134. Purpose: Voltage regulator , DC - DC converter and relay driver audio frequency power Amplifier.

135. Another choice is to linearize a nonlinear power amplifier so that overall we have a linear and reasonably efficient device.

136. Pointed out that it is a very important subject to look for the advanced, high-efficiency, useable, stable, reliable high linear power amplifier of UHF TVtransmitter by now.

137. You do not need to calibrate the Voltage Sensor or Power Amplifier.

138. A novel phase synchronously demodulating circuit was introduced in this paper, in which digital controlled analog switch and high power amplifier were adopted.

139. This thesis presents a design of class AB audio power amplifier.

140. Therefore, we use unipolar switching pulse width modulation scheme to realize a filterless Class - D power amplifier.

141. It is first applied in our graduate school for liquid cooling power amplifier.

142. Fidek Amplifier , and its audio power amplifier have been confirmed as Guangdong Top Brand Product.

143. At last, we design an experimental system including signal source, power amplifier array and loudspeaker array. Some experiments of the directive property of loudspeaker array are completed.