Battery
Item | Specification |
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Vendor & model name | Panasonic |
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Battery Type | |
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Pack capacity | 57Wh |
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Cell voltage | 3.7V/cell |
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Number of battery cell | 8 |
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Package configuration | 4 cells in series, 2 series in parallel |
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Package voltage | 14.8V |
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LCD Inverter Specification
This inverter is designed to light up the CCFL of LCD for TravelMate 270 series notebook. It should be supported the following LCD panels.
No. | Supplier | Model | Type |
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1 | LG | LP150x04 | TFT, 15.0” XGA |
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2 | Hitachi | TX38D85 | TFT, 15.0” XGA |
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3 | CPT | CLAA14/XF01 | TFT, 14.1” XGA |
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4 | CPT | CLAA150PA01 | TFT, 15.0” SXGA+ |
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5 | LG | TFT, 15.0” SXGA+ | |
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6 | IBM | ITSX95C | TFT 15.0” XGA |
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There are two control signals that come form system to control lamp brightness. One signal is named DAC_BRIG, which limits current to meet LCD lamp current specification. Another one is named PWM, which adjusts lamp brightness. This inverter brightness is adjusted by PWM burst mode. The PWM burst mode is that turning on and off the lamp at rate of 150Hz. The effective brightness is a function of the duty cycle.
Features
1.Wide range 9V to 21V input voltage.
2.Birghtness adjustment by PWM duty mode.
30 | Chapter 1 |
