pulse-frequency modulation

pulse-frequency modulation

[′pəls ¦frē·kwən·sē ‚mäj·ə‚lā·shən]
(communications)
A form of pulse-time modulation in which the pulse repetition rate is the characteristic varied. Abbreviated PFM.

pulse-frequency modulation

A signal is translated into a succession of constant-amplitude pulses transmitted at a frequency proportional to the amplitude of the original signal. See pulse modulation.
References in periodicals archive ?
However, in standby mode, the load current is very low, and pulse-frequency modulation (PFM) mode is usually applied for efficient control.
JC[TM] SNJ conditioning addresses the critical problem of chaotic noise present on the regulated output voltage of pulse-frequency modulation (PFM) type switching DC-DC converters.
For instance, new power ICs have 16V input capable synchronous buck regulators that deliver up to 3 A of continuous load current at voltages as low as 0.8 V These ICs offer both pulse-width modulation mode (PWM) and pulse-frequency modulation (PFM) modes and can move seamlessly between the two.
The pulse-frequency modulation (PFM) technique in discontinuous-conduction mode (DCM) [1,8] has been used to increase the power efficiency under the medium-to-light load conditions.

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