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Class-T amplifier

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178: 130: 33: 174:(ΔΣ) (or sigma-delta) modulator, with an internal digital clock to control the sample comparator. The two key aspects of this topology are that (1), feedback is taken directly from the switching node rather than the filtered output, and (2), the higher order loop provides much higher loop gain at high audio frequencies than would be possible in a conventional single pole amplifier. 156:
to produce what is claimed to be better performance than other class-D amplifier designs. Among the publicly disclosed differences is real time control of the switching frequency depending on the input signal and amplified output. One of the amplifiers, the TA2020, was named one of the twenty-five
292: 144:, used for Tripath's amplifier technologies (patent filed on Jun 20, 1996). Similar designs have now been widely adopted by different manufacturers. 50: 116: 97: 69: 340: 260:, an audio electronics company, formerly an exclusive tube circuit specialist, produced a Tripath-based audiophile amplifier. 54: 335: 76: 189:
bankruptcy protection on 8 February 2007. Tripath's stock and intellectual property were purchased later that year by
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Two Tripath chipset Class T stereo amplifier modules. TA2024 6+6W to the left, TA2020 20+20W to the right
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or fully analog techniques. Currently available implementations use a loop similar to a higher order
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The covered products use a class-D amplifier combined with proprietary techniques to control the
288: 90: 239: 177: 141: 129: 257: 235: 209:, to be integrated into products by other companies in several countries. For example: 324: 266:
used them in their ONE, TWO, and Sensation range of amplifiers from around 2008–2014.
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The control signals in Class T amplifiers may be computed using
26: 57:. Unsourced material may be challenged and removed. 185:Financial difficulties caused Tripath to file for 8: 181:Blaupunkt PA2150 T-Amp, "Powered by Tripath" 117:Learn how and when to remove this message 282: 280: 276: 201:Tripath used to sell the amplifiers as 7: 289:"25 Microchips That Shook the World" 157:chips that 'shook the world" by the 55:adding citations to reliable sources 142:switching (class-D) audio amplifier 25: 140:was a registered trademark for a 31: 316:US Patent for Class T amplifier 42:needs additional citations for 1: 357: 287:Brian Santo (1 May 2009). 197:Products and applications 168:digital signal processing 182: 154:pulse-width modulation 134: 341:Electronic amplifiers 180: 132: 336:Switching amplifiers 224:use them in several 51:improve this article 238:used them in their 66:"Class-T amplifier" 183: 135: 252:iMac (Flat Panel) 246:(Digital audio), 240:Power Mac G4 Cube 127: 126: 119: 101: 16:(Redirected from 348: 331:Audio amplifiers 303: 302: 300: 299: 284: 122: 115: 111: 108: 102: 100: 59: 35: 27: 21: 356: 355: 351: 350: 349: 347: 346: 345: 321: 320: 312: 307: 306: 297: 295: 286: 285: 278: 273: 228:and integrated 199: 150: 123: 112: 106: 103: 60: 58: 48: 36: 23: 22: 15: 12: 11: 5: 354: 352: 344: 343: 338: 333: 323: 322: 319: 318: 311: 310:External links 308: 305: 304: 275: 274: 272: 269: 268: 267: 261: 258:Audio Research 255: 236:Apple Computer 233: 198: 195: 149: 146: 125: 124: 107:September 2011 39: 37: 30: 24: 14: 13: 10: 9: 6: 4: 3: 2: 353: 342: 339: 337: 334: 332: 329: 328: 326: 317: 314: 313: 309: 294: 290: 283: 281: 277: 270: 265: 262: 259: 256: 253: 249: 245: 241: 237: 234: 231: 227: 223: 219: 215: 212: 211: 210: 208: 204: 196: 194: 192: 188: 179: 175: 173: 169: 164: 162: 161: 160:IEEE Spectrum 155: 147: 145: 143: 139: 131: 121: 118: 110: 99: 96: 92: 89: 85: 82: 78: 75: 71: 68: –  67: 63: 62:Find sources: 56: 52: 46: 45: 40:This article 38: 34: 29: 28: 19: 296:. Retrieved 264:Virtue Audio 244:Power Mac G4 200: 191:Cirrus Logic 184: 165: 158: 151: 137: 136: 113: 104: 94: 87: 80: 73: 61: 49:Please help 44:verification 41: 230:home cinema 226:car stereos 172:Delta-Sigma 325:Categories 298:2014-07-04 271:References 187:Chapter 11 163:magazine. 77:newspapers 254:computers 222:Blaupunkt 218:Panasonic 148:Amplifier 207:chipsets 205:, or as 232:systems 138:Class T 91:scholar 18:Tripath 93:  86:  79:  72:  64:  203:chips 98:JSTOR 84:books 293:IEEE 250:and 248:eMac 220:and 214:Sony 70:news 53:by 327:: 291:. 279:^ 242:, 216:, 193:. 301:. 120:) 114:( 109:) 105:( 95:· 88:· 81:· 74:· 47:. 20:)

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Tripath

verification
improve this article
adding citations to reliable sources
"Class-T amplifier"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message

switching (class-D) audio amplifier
pulse-width modulation
IEEE Spectrum
digital signal processing
Delta-Sigma

Chapter 11
Cirrus Logic
chips
chipsets
Sony
Panasonic
Blaupunkt
car stereos
home cinema
Apple Computer
Power Mac G4 Cube

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