SINGLE PHASE PULSE WIDTH MODULATION WAVEFORM GENERATOR

The MA838 PWM generator has been designed to provide waveforms for the control of variable speed AC machines, uninterruptible power supplies and other forms of power electronic devices which require pulse width modulation as a means of efficient power control.
Two TTL level PWM outputs control the upper and lower switches in an inverter arm. This is usually via an external isolation and amplification stage.

FEATURES
■ Fully Digital Operation
■ Interfaces with most Microprocessors
■ Wide Power-Frequency Range
■ 12-Bit Frequency Control accuracy
■ Carrier Frequency Selectable up to 24kHz
■ Waveform Stored in Internal ROM
■ Double Edged Regular Sampling
■ Selectable Minimum Pulse Width and Underlap Time
■ DC Injection Braking