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bridge-tied load (amplifier) (BTL)

A BTL amplifier, Bridge-Tied Load, is an amplifier configuration for power amplifiers.

In the BTL configuration, two amplifiers are connected together in a bridge configuration. In this configuration, the output signal of one amplifier is switched inverted to the input of the second amplifier. While the first amplifier operates as a voltage amplifier, the second amplifier, which receives the signal in phase opposition, operates as a current amplifier. Since both the signal voltage and the signal current are amplified, this results in a disproportionately high power amplification. If both amplifiers each double the audio signal, this results in four times the output power.

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Englisch: bridge-tied load (amplifier) - BTL
Updated at: 12.03.2020
#Words: 103
Links: amplifier (AMP), configuration (CFG), power (P), indium (In), bridge
Translations: DE
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