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Results tagged with power-amplifier
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user 312326
An electronic amplifier that amplifies a low-power signal in order to make it more suitable for an application that requires higher power (e.g. driving a speaker). Power amplifiers have special challenges compared to lower power amplifiers (e.g. a voltage amplifier, which amplifies a signal's voltage but does not provide much output current capability); such challenges include more board space, cooling components that are dissipating high power, etc.
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RF high power amp bias scheme
I am using the TGA2237-SM for the TX side in a front end design. I am trying to figure out an analog method for doing the bias up and bias down procedures.
Bias up
Set gate to Vg=-5V
Increase Vg till …
- 15
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RF high power amp bias scheme
Fred, I was thinking of something like this. Not perfect, but very simple. I think my issue might be the R1 resistor. The R1 is the gate, so I guess I could assume High Z. The node between R2 and R3 w …
- 15