Part Number: PMP9774 Other Parts Discussed in Thread: OPA4377
When we input sinusoidal signal (such as 1KHz signal) on PMP9774 EVM board, we found that the negative half cycle of the signal was not flipped but cut off, so that the part of the cut signal…
Part Number: PMP9774 Other Parts Discussed in Thread: TPS61088 , , OPA4377 Hello,
Could you help two questions below?
1. May I ask for more description on the generation of the envelop signal? I'm not sure why the two stage of buffers are required…
Part Number: PMP9774 Other Parts Discussed in Thread: TIDA-050024 We are in the design of 20 Watt HF Amplifier (Operating Freq is 1.5 MHZ to 30 MHZ).
The amplifier is presently being operated with 12 V DC with supply current of 4 Amp.
We checked the…
Part Number: PMP9774 Other Parts Discussed in Thread: TINA-TI
Tool/software: TINA-TI or Spice Models
Hello all,
A professor is working on the PMP9774 Reference design schematic with TMP61088 (Page 3, Figure 2) using TINA-TI and he received a following…
Part Number: TPS61088 Other Parts Discussed in Thread: PMP9774 , Hello,
I have an application where we're using the TPS61088 to drive a motor. Input is 3 'C' cells, nominal voltage from 4.6V down to 3.6V. Motor voltage is 6V. I'd like to be able to…
Hello Mr. Landgraf,
I can't see the TAS3251 directly generating the PWM signal to control the output voltage of the boost converter; this will need some additional circuitry. A peak detection of the input AF envelope might be used here to modulate the…
Hi Yusuke-san,
The concept is OK, but make sure the Vomin should be higher than Vinmax. if the Vinmax=3.6V, then suggest to set the Vomin to above 4.5V.
The output voltage can be a big range, like from 4.5V to 12V. Based on the inject signal. And…
Hi,
Yes, you can aviod to use a digital trim pot.
1. Please refer to PMP9774, this document illustrates the way to implement the output volatge adjustment;
2. Since you alreay has a microcontroller, could it output a DC voltage that can adjust…
There's no Easyscale™ protocol for TPS61175 or 55340. But it is easy to change the output voltage. most of the customer's do this way: adjust the output voltage with a PWM signal by using a RC filter to convert it to a dc signal, then feed it to the FB…
