October 4, 1999
- In This Issue
[Design Application]
Crossing The 3-V DSP Barrier Means Bending The Rules
—
Contributing Author
[Design Application]
IGBTs Or MOSFETs: Which Is Better For Your Design?
—
Contributing Author
[Ideas For Design]
Charge Pump Aids High-Power Switch-Mode Regulator
Switch-mode buck-regulator ICs can deliver high power with high efficiency, but they seldom operate with input voltages below 3 V. That restriction excludes the use of single-lithium-ion-cell...
—
Contributing Author
[Ideas For Design]
Efficient Charge Pump Converts 5 V To 3.3 V
The common approach for generating 5-V and 3.3-V supply rails in portable applications is to convert the main 5-V supply to 3.3 V using a lowdropout (LDO) linear regulator. LDOs offer low cost,...
—
Contributing Author
[Ideas For Design]
Programmable Tee Network Controls IGSF Filter
The circuit shown in Figure 1 is a second-order, low-pass filter that falls in the infinite-gain, singlefeedback (IGSF) class. IGSFtype filters are characterized by two-port input and feedback...
—
Contributing Author
[Ideas For Design]
GaAsFET Power Supply Has Negative Gate Bias, Automatic Power-Up Sequencing
GaAsFETs are frequently used as high-power RF amplifiers for cell-phone repeaters and similar devices. In general, they require a negative supply voltage of −4 V to −5 V to bias the...
—
Contributing Author
[Pease Porridge]
What's All This Optical Stuff, Anyhow?
One time, a few years ago, I was flying from LAX to Tokyo. Now, if you looked at a Mercator map, you would think a direct route would go near Hawaii on a "straight line." But of course, a proper...
—
Bob Pease
PartFinder