Power Supply Circuits
Micro Power Circuits
Micro Power Circuits
Although ceramic resonators are a good choice for low-power, low-frequency clock sources (if you can stand their 30-ppm te
Micropower double ended limit detector
The detector uses three sections of an L144 and a DC4011 type CMOS NAND gate to make a very low power voltage monitor. If the input voltage, Vin, is above Vhigh or below Vlow, the output will be a logical high. If (and only if) the input is between the limits will the output be low
The current tracer helps locate a defective IC that is loading down the power supply. The tracer amplifies the small voltage drop caused by current flow along a fraction of an inch of PC wiring and drives an ordinary microammeter. Needle-point test probes are used to contatt the edge of a PC trace and to follow the current to determine which...
Low Power Voltage Reference
The voltage reference circuit described below, is a special implementation of current source LM334. Characterized by a very small temperature coefficient metatholio output voltage and consumes only 10uA room temperature. This current fluctuates by a few uA, when the ambient temperature varies significantly. The positive rate of temperature...
Micro-power 32.768kHz clock oscillator circuit
Shows a 32.768 kl-b: micro-power clock oscillator circuit, and can be used in mobile phones, laptop computers and home appliances production generates a clock signal supplements.
WS157 or WS106 low power micro switching power supply circuit
Shown for the WS157 or WS106 with low power miniature switching power supply. WS157 or WS106 is newly developed in recent years a regulated switching power supply control device, the internal control circuitry and power switches integrated on the same chip,
OP90 Micropower Instrumentation Amplifier
Compared to other operational amplifier, OP90 significant advantage in low power consumption. With its low power consumption, the power supply voltage adapted to a wide range (
1.5V Battery FM transmitter
This implementation is adapted to rebroadcast the output of a CD player, television receiver, or radio receiver. I use it so that I can move about the house and listen to my favorite programs without disturbing others. Within and the house, I find that I can get 10 to 20 meters away from the transmitter with the small pocket FM receiver I carry...
80V Linear Regulator is Micropower
Industrial, automotive and telecom applications pose tough design challenges due to harsh operating environments and large voltage transients on already high (12V to 48V) rails. Some switching power supplies are robust enough to provide localized low voltage/high current power from high voltage input rails, but switch-mode supplies are...
Micropower DC/DC Converter circuits
The design of battery-powered equipment can often be quite challenging. Since few ICs can operate directly from the end-of-life voltage from a 2-cell battery (about 1.8V), most systems require a DC/DC converter. The system designer often has a limited area in which to place the DC/ DC converter; associated inductors and capacitors must be...
Dual 25mV Micropower Op Amp
Conventional monolithic micropower op amps with a wide supply voltage range require a large die area and therefore, a large package and footprint. The unconventional LT®6011 dual op amp fits 25mV input precision micropower operation and wide 2.7V to 36V supply range in a tiny new packageits 3mm ½¾ 3mm DFN package is so small it doesnt even...
Dual Micropower Comparator
The LT®6700 dual comparator incorporates features to reduce part count in space-critical designs, including a trimmed on-chip 400mV bandgap derived reference and internal hysteresis mechanisms. The LT6700 also features low voltage micropower single supply operation (1.4V to 18V, 7mA typical) and Over-The-Top® I/O capability to maximize...
micro power flasher draws less than 50 µA
Some applications require a circuit to indicate that a battery`s voltage has fallen below a certain value. However, if you don`t frequently check the indicator, the low-battery indicator itself can easily discharge the battery. The circuit in Figure 1 indicates when the battery voltage has dropped below a preset value. The circuit draws less...
Low-battery indicator uses fleapower
It is always desirable to use a low-battery indicator that consumes as little power as possible. For a 9V, 450-mAhr alkaline battery, a 50-µA low-battery indicator can by itself run the battery down in a little more than a year. Battery-powered devices that need to run continuously for a long time require battery indicators that consume minimal...
LT1500/LT1501 Low Noise Micropower
The LT®1500/LT1501 current mode step-up regulators control both the maximum and minimum inductor current, resulting in continuous inductor current and nearly constant switching frequency and output ripple over a wide load current range. The switching frequency depends mainly on the input and output voltages and the value of the inductor used.
Motor controller uses micro power
The circuit in Figure 1 implements a low-cost, micropower, latching motor controller that uses current sensing rather than switches to stop the motor. The design is optimized for a supply voltage of 3 to 9V, making it well-suited to battery-powered applications. To understand how the circuit works, assume that cross-coupled flip-flops IC1A and...
Reset generator uses "fleapower"
When a processor-controlled device must operate reliably, designers often choose to periodically reset the processor rather than rely on a watchdog configuration. In low-power systems, this periodic-reset circuit can consume a large part of the system`s current budget or may fail to operate at low voltages. The circuit in Figure 1 generates a...
Micropower Resistor Programmable Output from 0.4V to 18V
Voltage reference integrated circuits are widely used to establish accurate and stable voltages in analog circuits. While calibration-grade references are based on buried Zener diode technology (or even more exotic methods), the ubiquitous band-gap technique is the workhorse of the general purpose reference offerings. Band-gap references...
3MHz Micropower Synchronous Boost Converters
Portable electronic devices operating from one or more alkaline or nickel-metal-hydride cells require a boosted supply that is both small and efficient. Linear Technologys new LTC®3401 and LTC3402 are high frequency micropower synchronous boost converters that operate from an input voltage below 1V and deliver up to 1A of output current...
Micropower Dual and Quad JFET Op Amps
The LT®1462/LT1464 duals and the LT1463/LT1465 quads are the first micropower op amps to offer picoampere input bias currents and unity-gain stability when driving capacitive loads. For each amplifier, the LT1462/LT1463 consume only 28mA of supply current; the faster LT1464/ LT1465, just 145mA. Low supply current and operation specified at...
Micropower 4- and 8-Channel, 12-Bit ADCs
Data acquisition applications that require low power dissipation fall into two general areas: products that must use power very efficiently, such as battery-powered portable test equipment, and remotely located data logging equipment. To help meet these requirements, Linear Technology has introduced the LTC®1594 and LTC1598.
Micropower 600kHz Step-Up DC/DC Converter
Linear Technology introduces a new micropower DC/DC converter designed to provide high output power from a single cell or higher input voltage. The LT®1308 features an onboard switch capable of handling 2A with a voltage drop of 300mV and operates from an input voltage as low as 1V. The LT1308 features Burst ModeTM operation at light load;...
Micropower Buck/Boost Circuits
Two combinations of cell count and output voltage are to be strictly avoided: three cells converted to 3.3V and four cells converted to 5V. These combinations are troublesome because no ordinary regulator (boost, buck or linear) can accommodate a situation where the input voltage range overlaps the desired output voltage.
Micropower Buck/Boost Circuits, Part 2
You can expect 100mA output from LT1303 based circuits and 300mA from the LT1372 circuit without modification. All of the circuits feature output disconnect; in shutdown the outputs fall to 0V.
Micropower MOSFET Drivers
The LTC1155, dual micropower MOSFET driver, generates 12V from a 5V rail to fully enhance logic-level Nchannel switches with no external components required (see Figure 1). Further, the supply current is typically 85mA with the switch fully enhanced and 8mA with the LTC1155 in the standby mode (both inputs off).
Micropower Monitoring Capability
The LTC®1541 combines a micropower amplifier, comparator and 1.2V reference in an 8-pin package. The part operates from a single 2.5V to 12.6V supply with typical supply current of 5mA. Both op amp and comparator feature a common mode input voltage range that extends from the negative supply to within 1.3V of the positive supply. The op...
Micropower Rail-to-Rail Op Amps
The only SOT-23 op amps featuring Over-The-TopTM operation the ability to operate with either or both inputs above the positive railare the 55mA LT®1782 and the 300mA LT1783. This feature is important in many currentsensing applications, where the inputs are required to operate at or above the supply. The wide supply voltage range, from...
Micropower Regulators for Battery Supply circuits
Three new linear regulators simplify the design of batteryoperated equipment. The LT®1521 is a 300mA, positive low dropout regulator with micropower quiescent current and shutdown. The LT1175 is a 500mA negative complement with adjustable current limit. A third product, the LT1118, has the unique capability of maintaining output regulation...
New Comparators Feature Micropower Operation
The LTC®1440 series comparators are true micropower devices. They eliminate current peaking during switching, resulting in greatly reduced power consumption versus frequency, or when the inputs are nearly balanced. Figure 2s plot contrasts the LTC1440s power consumption versus frequency with that of another comparator specified as a...
1,5V Earphones Audio Amplifier
This audio amplifier circuit, connected to 32 Ohm impedance mini-earphones, can detect very remote sounds. Useful for theatre, cinema and lecture goers: every word will be clearly heard. You can also listen to your television set at a very low volume, avoiding to bother relatives and neighbors. Even if you have a faultless hearing, you may...
Micropower Voltage Regulator Schematic Diagram
This circuit was industrial to power an AVR microcontroller from a 12 opposed to run-acid battery. The watchdog itself draws solitary 14 µA. Of avenue, at hand are dyed-in-the-wool ICs, in lieu of model from Linear machinery or else Maxim, which can subsist used, but these can be very brutally to pick up grasp of and are commonly barely to be had
micro power pulse generator
This circuit produces clean logic pulses while drawing very low current. This circuit is designed to produce short 2mS pulses at a rate of one per second while drawing only 1 micro amplifier from a 9 volt battery.
Free Energy Circuits
Battery Charger Circuits
AC-DC & DC-DC Circuits
Solar Cell Circuits
Current Limiting Circuits
High Voltage Circuits
Switching Power Supply Circuits
Low Cost Pulse Generator circuit
This pulse generator produces square pulses from 1Hz to 100KHz with adjustable pulse width of nearly 0-100%. The generator is powered with a voltage of 5-15V and is therefore suitable for both TTL and CMOS circuits. If you want to measure the response of an amplifier or give timing pulses to a variable frequency digital circuit or drive a pulse...
Key Code Combination High Security Door Lock
This project is an electronic lock with many combinations that you can easily change and opens only with the correct combination of four consecutive numbers. The big advantage of the electronic lock is that the four numbers must be entered in the correct order one after the other. If a number is wrong then the circuit automatically resets to its...
Induction Balance Gold Metal Detector Circuit
This circuit really is the simplest inducer balancing metal detector (IB, Inductlon Balance) that can be built. The LB metal detection method has a satisfactory depth of penetration and good distinction between iron-based and noble metallic objects. Several metal detectors are available in the market, but their price is often prohibitive for...
Secret High Power Free Energy Circuit (AEC)
This is a Tesla/joule thief hybrid circuit that its inventor claim to produce 90 times the input power! The circuit can be self looped and can provide 1050W of power. from the 1050W only the 11.6W will loop back to supply the joule thief. If you remove the bridge rectifier and the C capacitor you can use the circuit with high frequency AC...
High Power Full Bridge Flyback Driver circuit
You need to find a reliable full bridge driver to drive your flyback transformer? Well, This is your final stop. There are many flyback drivers schematics out there, but most of them will not last for long. It is common known that famous ZVS invented by Vladmiro Mazilli, is the most reliable flyback driver as it uses the resonant zero voltage...
High Precision Digital Pulse Meter Circuit
This small device, intended primarily for modellers, allows an instant reading of the time I of a pulse in ms. It can, for example, measure the position of the servomotors, about 1 to about 2 ms, or make repetitive or non-pulsed measurements, such as closing or opening times of any instrument, parasitic abnormality. The diagram just describes...
Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
555 Timer Circuits
Remote Control Toy
H Bridge Circuit
Metal Detector Circuits
Liquid Sensing Circuits
Light Sensing Circuits
Voltage Detector Circuits
Air-Gas Detection Circuits
Human Sensing Circuits
RF & Radiation
Optical Sensing Circuits
Free Energy Circuits
AC to DC & DC to DC
Solar Cell Circuits
Micro Power Circuits
Switching Power Supplies
Light Laser LED
Digital to Analog
Analog to Digital
Data Bus Circuits
Voltage to Pulse
Current to Voltage
Frequency to Voltage
RF Converter Circuits
Sine to Square Wave
Voltage to Current
voltage to frequency
Period to Voltage
Video Wall circuits
TV Video Circuits
Motor Control Circuits
8051 / 8052
PCB CAD Software
Car bike Circuits
High Isolation DC/DC Converter Drives SiC Semiconductors
Aug 11, 2016
Hybrid Integrated Circuit for Wide Operating Temperature
Jul 18, 2016
Busted: The Micropower of Prisons in Narco-States
Dec 5, 2016
Miniature voltage regulators boast very high efficiency
Jan 9, 2017
Analog Devices Offers Industry's First Intrinsically Safe Digital Isolation Certification to Enable Design in ...
Feb 20, 2017
Jun 7, 2016
Energy harvesting for a greener environment
Mar 18, 2017
Global Medical Device Contract Manufacturing Market Forecast ...
Apr 19, 2017
Analogue Oscilloscopes and Measurements
Transmitters and Receivers
Sensors and Detectors
Sequential Pattern-ANSI Standards
Low Frequency Power Amplifiers
IC Regulated Power Supply
Digital Circuits 1
Digital Circuits 2
Digital Circuits 3
Digital Interconnection and Timing 1
Digital Interconnection and Timing 2
Digital Signal Integrity 1
Digital Signal Integrity 2
Digital Signal Integrity 3
Digital Signal Integrity 4
Digital Signal Integrity 5
Digital Memories 1
Digital Memories 2
Digital Memories 3
4 Band Resistor Calculator
5 Band resistor Calculator
6 Band resistor Calculator
Parallel Resistors Calculator
LED resistance Calculator
Resistors Calculator of Inverting Op-amp
Resistors Calculator of Non-Inverting Op-amp