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The bridge driving circuit composed of the OPA502

2016-05-19 07:57  
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The bridge driving circuit composed of the OPA502
The figure shows the the bridge drive circuit composed of the OPA502. The OPA502 on the left uses the same phase input methods, so its input resistance is very high, the input signal is directly sent into the same phase input (pins 4), its positive and negative output terminals of the external SFCL RCL = 0.2 Ω. Thus the output current limit is 4 A. In the case of the parameters (the feedback resistance for 20 k Ω, inverse end resistance land is 10 k Ω), the voltage amplifier multiples is 3. The left output voltage of the OPA502 reaches to the load.