JP2011239664A - 電源回路 - Google Patents
電源回路 Download PDFInfo
- Publication number
- JP2011239664A JP2011239664A JP2011087075A JP2011087075A JP2011239664A JP 2011239664 A JP2011239664 A JP 2011239664A JP 2011087075 A JP2011087075 A JP 2011087075A JP 2011087075 A JP2011087075 A JP 2011087075A JP 2011239664 A JP2011239664 A JP 2011239664A
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- Prior art keywords
- terminal
- circuit
- gate
- transistor
- adder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- H—ELECTRICITY
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- H01L29/70—Bipolar devices
- H01L29/72—Transistor-type devices, i.e. able to continuously respond to applied control signals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
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Abstract
【解決手段】第1の電圧が入力される第1の端子と、第2の電圧が入力される第2の端子と、前記第1の端子及び第2の端子に接続され、前記第1の電圧と第2の電圧を比較するコンパレータと、前記コンパレータから出力された第1のデジタル信号を、平均化し、積分し、デジタルPWM処理するデジタル回路と、前記デジタル回路から出力された第2のデジタル信号を増幅するPWM出力ドライバと、前記増幅された第2のデジタル信号を平滑する平滑化回路とを有する電源回路を提供する。
【選択図】図1
Description
図1は電源回路101の構成例である。電源回路101は、電圧変換回路102及び電圧変換回路102の制御回路103を有している。電圧変換回路102は、トランジスタ111、コイル112、ダイオード113、及びコンデンサ114を有するDC−DCコンバータである。制御回路103は、三角波発生回路121、デジタル制御方式の回路150、パルス幅変調出力ドライバ123、抵抗124、及び抵抗125を有している。また点線の矢印127は帰還回路のループを表している。抵抗124の出力電圧である帰還電圧Vfbは、デジタル制御方式の回路150に入力される。
本実施の形態では、実施の形態1で述べられた、トランジスタ111、並びに、コンパレータ151、デジタル演算処理回路152、及びパルス幅変調出力ドライバ153のそれぞれに含まれるトランジスタについて説明する。
102 電圧変換回路
103 制御回路
111 トランジスタ
112 コイル
113 ダイオード
114 コンデンサ
121 三角波発生回路
123 パルス幅変調出力ドライバ
124 抵抗
125 抵抗
127 矢印
150 回路
151 コンパレータ
152 デジタル演算処理回路
152a デジタル平均化・積分器
152a_1 デジタル平均化回路
152a_2 デジタル積分器
152b デジタルパルス幅変調器
153 パルス幅変調出力ドライバ
154 ローパスフィルタ
155 クロック分割器
201 加算回路
202 加減算回路
203 カウント比較回路
204 ラッチ回路
211 ANDゲート
212 ANDゲート
213 XORゲート
214 フリップフロップ
221 ANDゲート
222 ANDゲート
224 ORゲート
225 XORゲート
226 XORゲート
227 フリップフロップ
241 フリップフロップ
242 フリップフロップ
243 NORゲート
244 NORゲート
251 加算器
252 加算器
253 加算器
254 加算器
255 加算器
256 加算器
257 加算器
258 加算器
259 加算器
261 インバータ
262 インバータ
263 NORゲート
271 XORゲート
272 XORゲート
273 XORゲート
274 XORゲート
275 XORゲート
276 XORゲート
277 NANDゲート
278 ANDゲート
279 ORゲート
281 NANDゲート
282 NANDゲート
400 基板
402 ゲート絶縁膜
407 絶縁層
410 トランジスタ
411 ゲート電極
412 酸化物半導体膜
414a 配線
414b 配線
415a 電極
415b 電極
417a 開口
417b 開口
420 トランジスタ
421 ゲート電極
422 ゲート絶縁膜
423 酸化物半導体膜
424 チャネル保護膜
425 導電膜
426 導電膜
427 絶縁膜
430 トランジスタ
431 ゲート電極
432 ゲート絶縁膜
433 導電膜
434 導電膜
435 酸化物半導体膜
437 絶縁膜
440 トランジスタ
441 導電膜
442 導電膜
443 酸化物半導体膜
444 ゲート絶縁膜
445 ゲート電極
447 絶縁膜
CNT_RST 制御リセット信号
CNT0 信号
CNT1 信号
CNT2 信号
CNT3 信号
CNT4 信号
CNT5 信号
COMP 信号
RST リセット信号
CLK クロック信号
CIN 入力信号
COUT 出力信号
LIMIT リミット信号
DIG_AVE 平均化されたデジタル信号
CONT 制御信号
SET−CNT0 信号
SET−CNT1 信号
SET−CNT2 信号
SET−CNT3 信号
SET−CNT4 信号
SET−CNT5 信号
PWM パルス幅変調出力信号
HIGH−SET 信号
LOW−SET 信号
pulse 信号
Claims (17)
- 第1の電圧が入力される第1の端子と、第2の電圧が入力される第2の端子と、
前記第1の端子及び第2の端子に接続され、前記第1の電圧と第2の電圧を比較するコンパレータと、
前記コンパレータから出力されたデジタル信号を、平均化し、積分し、デジタルパルス幅変調処理するデジタル演算処理回路と、
前記デジタル演算処理回路から出力されたデジタル信号を増幅するパルス幅変調出力ドライバと、
前記増幅されたデジタル信号を平滑する平滑化回路と、
を有することを特徴とする電源回路。 - 請求項1において、
前記電源回路は、DC−DCコンバータを有することを特徴とする電源回路。 - 請求項1において、
前記DC−DCコンバータは、コイルと、ダイオードと、チャネル形成領域として酸化物半導体膜を含むトランジスタとを含むことを特徴とする電源回路。 - 請求項1乃至請求項3のいずれか一項において、
前記コンパレータ、前記デジタル演算処理回路、及び、前記パルス幅変調出力ドライバのそれぞれは、
チャネル形成領域である酸化物半導体膜と、ソース電極と、ドレイン電極と、ゲート電極と、ゲート絶縁膜を含むトランジスタを有することを特徴とする電源回路。 - 請求項3又は請求項4において、
前記トランジスタは、トップゲート型トランジスタであり、かつ前記酸化物半導体膜の上面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 請求項3又は請求項4において、
前記トランジスタは、トップゲート型トランジスタであり、かつ前記酸化物半導体膜の下面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 請求項3又は請求項4において、
前記トランジスタは、ボトムゲート型トランジスタであり、かつ前記酸化物半導体膜の上面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 請求項3又は請求項4において、
前記トランジスタは、ボトムゲート型トランジスタであり、かつ前記酸化物半導体膜の下面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 第1の電圧が入力される第1の端子と、第2の電圧が入力される第2の端子と、
前記第1の端子及び第2の端子に接続され、前記第1の電圧と第2の電圧を比較するコンパレータと、
前記コンパレータから出力されたデジタル信号を平均化する加算回路と、
前記平均化されたデジタル信号を積分する加減算回路と、
前記積分されたデジタル信号をデジタルパルス幅変調処理するカウント比較回路及びラッチ回路と、
前記ラッチ回路から出力されたデジタル信号を増幅するパルス幅変調出力ドライバと、
前記増幅されたデジタル信号を平滑する平滑化回路と、
を有することを特徴とする電源回路。 - 請求項9において、
前記電源回路は、DC−DCコンバータを有することを特徴とする電源回路。 - 請求項10において、
前記DC−DCコンバータは、コイルと、ダイオードと、チャネル形成領域として酸化物半導体膜を含むトランジスタとを含むことを特徴とする電源回路。 - 請求項9乃至請求項11のいずれか一項において、
前記コンパレータ、前記加算回路、前記加減算回路、前記カウント比較回路、前記ラッチ回路、及び、前記パルス幅変調出力ドライバのそれぞれは、
チャネル形成領域である酸化物半導体膜と、ソース電極と、ドレイン電極と、ゲート電極と、ゲート絶縁膜を含むトランジスタを有することを特徴とする電源回路。 - 請求項11又は請求項12において、
前記トランジスタは、トップゲート型トランジスタであり、かつ前記酸化物半導体膜の上面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 請求項11又は請求項12において、
前記トランジスタは、トップゲート型トランジスタであり、かつ前記酸化物半導体膜の下面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 請求項11又は請求項12において、
前記トランジスタは、ボトムゲート型トランジスタであり、かつ前記酸化物半導体膜の上面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 請求項11又は請求項12において、
前記トランジスタは、ボトムゲート型トランジスタであり、かつ前記酸化物半導体膜の下面と前記ソース電極及びドレイン電極が接することを特徴とする電源回路。 - 請求項1乃至請求項16のいずれか一項において、
前記平滑化回路は、ローパスフィルタであることを特徴とする電源回路。
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Also Published As
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KR20130061678A (ko) | 2013-06-11 |
TWI544732B (zh) | 2016-08-01 |
US9178419B2 (en) | 2015-11-03 |
US20110254523A1 (en) | 2011-10-20 |
TW201223101A (en) | 2012-06-01 |
WO2011129209A1 (en) | 2011-10-20 |
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