Design tool
Simulation for PWM Generator Circuit — SBOC502.ZIP (18KB)
Release date: 02-May-2018
CIRCUIT060010
PWM generator circuit
CIRCUIT060010
Overview
This circuit utilizes a triangle wave generator and comparator to generate a 500 kHz pulse-width modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. An op amp and comparator generate a triangle waveform which is applied to the inverting input of a second comparator. The input voltage is applied to the non-inverting input of this second comparator. By comparing the input waveform to the triangle wave, a PWM waveform is produced. The second comparator is placed in the feedback loop of an error amplifier to improve the accuracy and linearity of the output waveform.
Features
- 5V Single supply with half-supply reference
- Input: -2V to 2V
- Output: 0V to 5V
Downloads
Supported products & hardware
General-purpose op amps
Boost converters (integrated switch)
Comparators
High-speed op amps (GBW>=50MHz)
Technical documentation
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 3
| Type | Title | Date | |
|---|---|---|---|
| * | Application note | PWM generator circuit (Rev. A) | Feb. 01, 2019 |
| E-book | Analog Engineer’s Circuit Cookbook: Amplifiers (Rev. A) | Feb. 18, 2019 | |
| User guide | TIPD108 Verified Design Reference Guide | Sep. 19, 2013 |
Related design resources
Design tools & simulation
SIMULATION TOOL
CALCULATION TOOL
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.