title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸ ÑÐ°ÑÑÐµÑ Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð³Ð¾ ÐÐ§ Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ° Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 1ÐºÐÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Development and calculation of analog-to-digital RF transmitter with a power of 1 kW
Creators: name: ÐÐ¸ÐºÐ¾Ð»Ð°ÐµÐ², ÐÐ¸ÑÐ¸Ð»Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð°Ð¼Ð¿Ð»Ð¸ÑÑÐ´Ð½Ð°Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ (ÐÐ)
Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ(ÐÐ)
Ð¾Ð´Ð½Ð¾Ð¿Ð¾Ð»Ð¾ÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ(ÐÐ)
DRM(Digital Radio Mondiale)
ÑÐ¸ÑÐ¾ÑÐ½Ð¾-Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ(Ð¨ÐÐ)
ÐºÐ¾Ð»Ð»ÐµÐºÑÐ¾ÑÐ½Ð°Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ
Ð±Ð°Ð·Ð¾Ð²Ð°Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ñ
Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾Ñ ÐºÐ»Ð°ÑÑÐ° D
ÑÐ°Ð´Ð¸Ð¾ÑÐ°ÑÑÐ¾ÑÐ½ÑÐ¹ (Ð Ð§) Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ
ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ Ð¿Ð¾Ð»ÐµÐ·Ð½Ð¾Ð³Ð¾ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ (ÐÐÐ)
amplitude modulation (AM)
dynamic modulation (DM)
single-band modulation (OM)
DRM (Digital Radio Mondiale)
pulse width modulation (PWM)
collector modulation
basic modulation
class D modulator
radio frequency (RF) generator
energy conversion efficiency

description: Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ²ÐµÑÐ´Ð¾ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ° Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 1ÐºÐ Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑÑ(ÐÐÐ)â85-95%, ÑÐ°Ð±Ð¾ÑÐ°ÑÑÐµÐ³Ð¾ Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ ÐºÐ¾ÑÐ¾ÑÐºÐ¸Ñ Ð²Ð¾Ð»Ð½(ÐÐ) Ñ Ð°Ð¼Ð¿Ð»Ð¸ÑÑÐ´Ð½Ð¾Ð¹ (ÐÐ),Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ (ÐÐ) Ð¸ Ð¾Ð´Ð½Ð¾Ð¿Ð¾Ð»Ð¾ÑÐ½Ð¾Ð¹ (ÐÐ) Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸ÐµÐ¹, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ¿Ð¾ÑÐ¾Ð±Ð½ÑÐ¹ Ð²ÐµÑÐ°ÑÑ Ð² ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð¼ ÑÐ¾ÑÐ¼Ð°ÑÐµ (DRM). ÐÐ»Ñ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ° ÑÑÐµÐ±ÑÐµÑÑÑ Ðº ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸ Ð Ð§ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ°. ÐÐ· Ð½Ð¸Ñ Ð²ÑÐ±Ð¸ÑÐ°ÐµÑÑÑ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½ÑÐ¹ Ð¿Ð¾ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¼ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°Ð¼. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð²ÑÐ±ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ Ð¼ÐµÑÐ¾Ð´Ð° ÑÐ°Ð·ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÑÑÑ ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ°. Ð¢Ð°ÐºÐ¶Ðµ, Ð¿Ð¾ÑÐ»Ðµ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð², Ð²ÑÐ±Ð¸ÑÐ°ÐµÑÑÑ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾Ñ Ð¸ Ð Ð§ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾Ñ. Ð£ÑÐ¸ÑÑÐ²Ð°Ñ Ð¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð·ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¸Ñ ÑÐ°ÑÑÐµÑÐ°.
ÐÐ¾ Ð¸ÑÐ¾Ð³Ð°Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸ Ð Ð§ Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ¾Ð² Ð±ÑÐ» Ð²ÑÐ±ÑÐ°Ð½ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÐ¹ Ð¼ÐµÑÐ¾Ð´ ÐºÐ¾Ð»Ð»ÐµÐºÑÐ¾ÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸, Ð¿ÑÐ¸ ÑÑÐ¾Ð¼ Ð²ÑÐ±ÑÐ°Ð½ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾Ñ, ÑÐ°Ð±Ð¾ÑÐ°ÑÑÐ¸Ð¹ Ð² ÑÐµÐ¶Ð¸Ð¼Ðµ ÐºÐ»Ð°ÑÑÐ° D. Ð¡ ÐµÐ³Ð¾ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿Ð¾Ð»ÑÑÐ¸Ð»Ð¾ÑÑ Ð´Ð¾Ð±Ð¸ÑÑÑÑ Ð½ÑÐ¶Ð½Ð¾Ð³Ð¾ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ° ÑÑÐ¸Ð»ÐµÐ½Ð¸Ñ. ÐÑÐ±ÑÐ°Ð½Ð° ÐºÐ»Ð°ÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÑÐµÐ¼Ð° Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾ÑÐ° ÐºÐ»Ð°ÑÑÐ° D Ñ Ð·Ð°Ð·ÐµÐ¼Ð»ÐµÐ½Ð½Ð¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¾Ð¹, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð´Ð°ÑÑ Ð»Ð¸Ð½ÐµÐ¹Ð½ÑÑ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÑ Ð¸ Ð¾ÑÐ½Ð¾ÑÐ¸ÑÐµÐ»ÑÐ½ÑÑ Ð½Ðµ Ð´Ð¾ÑÐ¾Ð³Ð¾Ð²Ð¸Ð·Ð½Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð°. ÐÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð° ÐÐ°Ð½Ð½Ð° Ð´Ð»Ñ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ° Ð´Ð°Ð»Ð¾ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ Ð±ÐµÐ· Ð¿ÐµÑÐµÑÑÑÐ¾Ð¹ÐºÐ¸ Ð¼Ð¾ÑÐ½ÑÑ ÐºÐ°ÑÐºÐ°Ð´Ð¾Ð² ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°ÑÑ ÑÐµÐ¶Ð¸Ð¼Ñ ÐÐ, ÐÐ, ÐÐ Ð¸ Ð²Ð½ÐµÐ´ÑÐ¸ÑÑ ÑÑÐ°Ð½Ð´Ð°ÑÑ DRM, Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐ¸Ð¹ Ð¿Ð¾Ð²ÑÑÐ¸ÑÑ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾Ð½Ð¸Ð·Ð¸ÑÑ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ðº Ð¿Ð¾Ð»Ð¾ÑÐµ ÐºÐ°Ð½Ð°Ð»Ð°.
 

Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¿Ð¾Ð»ÑÑÐ°ÐµÑÑÑ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¸Ð°Ð»ÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° ÐÐ Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ°, ÑÐ°Ð±Ð¾ÑÐ°ÑÑÐµÐ³Ð¾ Ð² ÑÐµÐ¶Ð¸Ð¼Ð°Ñ ÐÐ, ÐÐ, ÐÐ Ð¸ DRM Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 1 ÐºÐÑ Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÐ¼ ÐÐÐ 93%. Ð¢Ð°Ðº ÐºÐ°Ðº Ð±Ð¾Ð»ÑÑÐ°Ñ ÑÐ°ÑÑÑ Ð ÐÐ´Ð£ Ð² Ð Ð¾ÑÑÐ¸Ð¸ ÑÐ°Ð±Ð¾ÑÐ°ÐµÑ Ð¿ÑÐ¸ ÐÐÐ Ð¿Ð¾ÑÑÐ´ÐºÐ° 30%, Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ðµ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸ÐºÐ° ÐºÑÐ°Ð¹Ð½Ðµ Ð°ÐºÑÑÐ°Ð»ÑÐ½Ð°.
description: The purpose of the work is the development of a 1kV solid-state transmitter with an energy conversion efficiency â85-95%, operating in the short-wave range with amplitude (AM), dynamic (DM) and single-band modulation, as well as capable of broadcasting in digital format (DRM). To develop a transmitter, modulation methods for an generator are required. Of these, the most optimal in terms of energy characteristics is selected. Based on the selected method, a structural diagram of the transmitter is developed. Also, after comparing the main parameters, a modulator and an RF generator are selected. Take into account their technological features, a methodology for their calculation is being developed.
 Based on the results of the study of modulation methods for generators, the most efficient collector modulation method was selected, and a modulator operating in class D mode was selected. Using it, it was possible to achieve the desired gain. A classical class D modulator circuit with an earthed load is selected, which gives a linear modulation characteristic and relatively inexpensive production. Using the Kann method for constructing a transmitter made it possible without realignment of powerful stages to implement the AM, OM, DM modes and introduce the DRM standard, which makes it possible to increase the noise immunity of the signal and also reduce the requirements for the channel band. 
 The result is a schematic diagram of an transmitter operating in the AM, OM, DM and DRM modes with a power of 1 kW with an energy conversion efficiency of 93%. Since most of the transmitter in Russia works with an energy conversion efficiency 30%, the implementation of this transmitter is extremely relevant.