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13.8 Volt 20A PSU - This is a Regulated DC power supply with short
circuit protection and with current limiter. |
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13.8V 20A Power Supply - As is commonly the case, this supply was
born of necessity. There is absolutely nothing special about the
circuit, except that as shown, it is quite capable of up to 20 Amps
intermittently or 10A continuous. Simply use a bigger transformer,
bridge rectifier and more capacitors and output transistors to get more
current. The basic circuit should be good for up to 100A or so, using a
5A TO3 regulator IC, but it can obviously be increased further (if you
really do need a 500A supply!). ….(design) |
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9 Volt 2 Amp Power Supply - A simple 9 Volt 2 amp supply using a
single IC regulator. |
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A Current Limiting Bench Power Supply - This is a 1-amp
variable-voltage PSU. It adjusts from about 3v to 24v: and has the added
feature that you can limit the maximum output current. This is
invaluable when (for example) you power-up a project for the first time
or soak-test a piece of equipment.... (circuit design) |
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Add Trimmable Current Limit to DC to DC Supply - 08/01/97 EDN-Design
Ideas: You can add a simple, two-transistor circuit to a standard,
step-down dc/dc converter to provide an adjustable limit for output
current. You can apply this method to most step-down converters that
provide access to feedback node.....(design idea) |
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An Add-On Current Limiter For Your PSU - This circuit allows you to
set a limit on the maximum output current available from your PSU. It's
very useful when ….(electronic design) |
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AN-8 Hiccup Mode Current Limiting - Application Note Microsemi 1303 |
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Apex-AN09 Foldover Current Limiting - 2/1998, AN9UREVB : 217 Kb
(Apex App Note) |
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Circuit Adds Latch Off Current Limit to Regulator - 03/30/00 EDN-Design
Ideas: In many applications, forcing a high-current power supply to
latch off if a sustained fault condition exists can minimize the
likelihood of damage to the pc-board traces and the power devices in the
supply. Pulse-width-modulation (PWM)-control circuits provide no
latch-off feature, but the circuit in Figure 1 does.....(design idea) |
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Circuit Provides Hiccup Current Limiting - 06/26/03 EDN-Design
Ideas: Current-limit protection is an essential feature for power-supply
systems. The three major types of current-limit-protection mechanisms
are constant, fold back, and hiccup. Hiccup current limit performs the
best of the three types; however, the implementation is rather complex.
In this scheme, upon detection of an over current event, t.....(design
idea) |
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Comparator Adds Current Limit to V2 Controller - 05/21/98 EDN-Design
Ideas: The subroutine "FASTBCD" (Listing 1)for 8051 µPs quickly converts
16-bit binary to 24-bit BCD data. The conversion algorithm involves
left-shifting bits from the high-order bit of the binary number into the
carry bit while left-shifting the carry bits into the low-order bit of a
BCD shift register using BCD left-shift operations.....(design idea) |
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Current limit switch is Digitally programmable - 08/17/00 EDN-Design
Ideas: Current-limit switches are virtually ubiquitous in system
controls. They provide a safe means for regulating the current delivered
to a load circuit. The switches allow the load current to increase to a
programmed limit but no higher. Typically, the current limit is
a....(design idea) |
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Current limiter allows large USB bypass capacitance - 08/06/09 EDN
A current-sense amplifier limits inrush current.....(design idea) |
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Current Limiter Provides Latch up Signal - 01/01/98 EDN-Design
Ideas: -Current-limiting circuit both signals a latch-up condition and
prevents latch-up-induced over current destruction of a CMOS IC or group
of ICs.....(design idea) |
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Current Limiting Bench Power Supply - This is a 1-amp
variable-voltage PSU. It adjusts from about 3v to 24v: and has the added
feature that you can limit the maximum output current. This is
invaluable when (for example) you power-up a project for the first time
or soak-test a piece of equipment. (circuit design) |
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Current Limiting Power Supply - This is a 1-amp variable-voltage
PSU. It adjusts from about 3v to 24v: and has the added feature that you
can limit the maximum output current. This is invaluable when (for
example) you power-up a project for the first time or soak-test a piece
of equipment. |
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Current Limiting Resistor Calculator information - The calculators
on this page can be used to find current limiting resistors and currents
for Light Emitting Diodes…..(electronic design) |
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Current-Limit Switch Is Digitally Programmable - Maxim Application
Notes / 298 / Dec-04 (app note) |
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Current-Limited DC/DC Converter Simplifies USB Power Supplies -
DN252 Design Notes (Linear Technology) (app note) |
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Current-Llimit Switch is Digitally Programmable - 08/17/00 EDN-Design
Ideas: Current-limit switches are virtually ubiquitous in system
controls. They provide a safe means for regulating the current delivered
to a load circuit. The switches allow the load current to increase to a
programmed limit but no higher. Typically, the current limit is a
function of the voltage across an external resistor, produced by the
current from....(design idea) |
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Dual Current-Limiting Switch for USB Applications - Micrel
Application Note 32 -- Dual Current-Limiting Switch for USB
Applications (app note) |
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Filters & Power Dissipation Using the Power Design Tool Apex-AN39
- Apex App Note) |
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Hiccup Mode Current Limiting AN-8 - Application Note 8 from Microsem
(app note) |
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L200 PSU Regulator Circuit - easy to power supply with1-single L200
IC, offers a variable current limit of up to2 A, as well as voltage
regulation |
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Network Linearizes DC/DC Converter's Current Limit Characteristics -
10/13/05 EDN -Design Ideas Thermistor adds to efficiency, eliminates
sense resistor.....(design idea) |
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Pira CZ Stereo Encoder for FM broADCasting - This stereo encoder is
a halfway between analogue and digital processing. It combines the best
from both domains to provide high-quality and easy to build device. The
sampling frequency used in this stereo encoder is 97 times |
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Rechargeable Flashlight Obsoletes Lantern Battery - 12/11/03 EDN-Design
Ideas: This Design Idea describes a high-intensity, rechargeable
flashlight system that you can build from a 6V lantern-type flashlight.
The rechargeable battery comprises four 2V, 2.5-Ahr (ampere-hour)SLA
(sealed lead-acid) cells, similar in size to a standard D-sized battery.
SLA cells are.....(design idea) |
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Simple & effective inrush current limiter stops surges - 08/02/07
EDN-Design Ideas: Active circuit and relay replace lossy
negative-temperature-coefficient thermistor.....(design idea) |
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Soft Limiter for Oscillator Circuits Uses Emitter-Degenerated
Differential Pair - 10/12/06 EDN-Design Ideas: Phase-shift network
plus a few active components yields low-distortion output.....(design
idea) |
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Stereo Limiter - Stereo Broadcast Limiter Circuit for Ramsey.
….(electronic schematic) |
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Voltage Reference sets Current limit - 11/19/98 EDN-Design Ideas:
(design idea) |
