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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TDA7294HS датащи(PDF) 13 Page - STMicroelectronics |
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TDA7294HS датащи(HTML) 13 Page - STMicroelectronics |
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13 / 17 page  BRIDGE APPLICATION Another application suggestion is the BRIDGE configuration, where two TDA7294 are used, as shown by the schematic diagram of figure 25. In this application, the value of the load must not be lower than 8 Ohm for dissipation and current capability reasons. A suitable field of application includes HI-FI/TV subwoofers realizations. The main advantages offered by this solution are: - High power performances with limited supply voltage level. - Considerably high output power even with high load values (i.e. 16 Ohm). The characteristics shown by figures 27 and 28, measured with loads respectively 8 Ohm and 16 Ohm. With Rl= 8 Ohm, Vs = ±25V the maximum output power obtainable is 150 W, while with Rl=16 Ohm, Vs = ±35V the maximum Pout is 170 W. 22K 0.56 µF 2200 µF 0.22 µF TDA7294 + - 22 µF 22K 680 22K 3 1 4 13 7 +Vs Vi 8 15 2 14 6 10 9 + - 3 0.56 µF 22K 1 4 2 14 6 22 µF 22K 680 10 9 22 µF 15 8 -Vs 2200 µF 0.22 µF 22 µF 20K 10K 30K 1N4148 ST-BY/MUTE TDA7294 13 7 D93AU015A Figure 25: Bridge Application Circuit TDA7294 13/17 |
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