This circuit utilizes a triangle wave generator and comparator to generate a pulse-width-modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. An op amp and comparator generate a triangular waveform which is passed to the inverting input of a second comparator.
By passing the input voltage to the non-inverting comparator input, a PWM waveform is produced. Negative feedback of the PWM waveform to an error amplifier is utilized to ensure high accuracy and linearity of the output.
TI Precision Designs are analog solutions created by TI’s analog experts. Verified Designs offer the theory, component selection, simulation, complete PCB schematic & layout, bill of materials, and measured performance of useful circuits. Circuit modifications that help to meet alternate design goals are also discussed.
| Manufacturer | Texas Instruments |
|---|---|
| Category | Wired Communication |
| Sub-Category | Interface Solutions |
| Eval Board |
Board not Stocked
|
| Purpose |
PWM Signal Generation
|
| Component Count + Extras |
22 + 5
|
| Features |
ESD Protection
Over Voltage Protection |
| Data Rate (Max) |
500 kHz
|
| Design Author |
Texas Instruments
|
| Main I.C. Base Part |
OPA2365
TLV3502 |
| Date Created By Author | |
| Date Added To Library | 2014-10 |
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