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Super Capacitor Circuits
Last Updated on: Tuesday, April 01, 2014 04:30 AM


Circuits Designed by Dave Johnson, P.E. :
  • Supercapacitor Voltage Limiting Circuit
    Supercapacitors are working their way into more and more applications where electrical energy needs to be stored.  These robust devices can be charged and discharged 1000s of times and will typically outlast a battery.  Many supercap manufacturers claim a life span of 10 years or more.  A supercapacitor is often chosen to supply power to low current load for many hours at a time, recharged by a solar panel.

  • Ultracapacitor Voltage Limiting Circuit
    Supercapacitors are working their way into more and more applications where electrical energy needs to be stored.  These robust devices can be charged and discharged 1000s of times and will typically outlast a battery. 


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Ceramic Input Capacitors can Cause OverVoltage Transients -  AN88 Linear Technology When it comes to input filtering, ceramic capacitors are a great choice. They offer high ripple current rating and low ESR and ESL. Also, ceramic capacitors are not very sensitive to over voltage and can be used without derating  operating voltage. However, designers must be aware of a potential overvoltage condition that is generated....
Ceramic output capacitors enhance internally compensated switchers -  20-Jul-06 Issue of EDN  Restore switching regulator stability when you change output-capacitor compositions.... [Design Idea by Robert Kollman, Texas Instruments, Dallas, TX; Edited by Brad Thompson and Fran Granville]
Circuit charges supercapacitors to 7V from USB power -  04/26/07 EDN-Design Ideas....Switching regulator charges three supercapacitors with current limit.… [Design Idea by Fran Hoffart, Linear Technology, Milpitas, CA]
Get power from a telephone line without disturbing it -  1-Dec-06 Issue of EDN  Supercapacitor stores a trickle charge and delivers regulated output voltage.... [Design Idea by Yongping Xia, Navcom Technology, Torrance, CA; Edited by Brad Thompson and Fran Granville]
Memory termination IC balances charges on series capacitors -  18-Aug-05 Issue of EDN  Get the best performance from high-value capacitors with simple IC circuit.... [Design Idea by Clayton B Grantham, National Semiconductor, Tucson, AZ; Edited by Brad Thompson and Fran Granville]
Solar Cells implement Low Cost Illuminator -  09/12/97 EDN-Design Ideas....he advent of inexpensive solar cells and low-cost "ultracapacitors" makes it possible to develop an entirely solar-powered inspection illuminator…. [Design Idea by Dennis Eichenberg, Parma Heights, OH]
Super Capacitor Powers Audio Amp -  03/14/96 EDN-Design Ideas...., Micro power and low-voltage op amps allow you to build high-performance analog-signal processors that require no batteries or wall transformers, this simple mixer is powered using one large capacitor such as a Supercap or Dynacap for some Time.... EDN is migrating links. This link is not verified.  Google the "title" EDN for new link.
Supercapacitor boosts current from small battery -  2-Sep-04 Issue of EDN  Some battery-powered devices require large amounts of current in a short period of time but spend most of the time in sleep (power-down] mode. The momentary large-load current demands large batteries to meet the time requirement, even though the average current consumption is low. For instance, a system operates for 1.... [Design Idea by Yongping Xia, Navcom Technology, Torrance, CA]
Supercapacitor Voltage Limiting Circuit -  Supercapacitors are working their way into more and more applications where electrical energy needs to be stored.  These robust devices can be charged and discharged 1000s of times and will typically outlast a battery.  Many supercap manufacturers claim a life span of 10 years or more.  A supercapacitor is often chosen to supply power to low current load for many hours at a time, recharged by a solar panel. [Designed by David A. Johnson]
Ultracapacitor powers bicycle light -  09/28/00 EDN-Design Ideas....The circuit in Figure 1 represents a simple and inexpensive way to provide additional bicycling safety. A conventional bicycle-generator lighting system works with the circuit to provide safety lighting for several minutes after the bicycle has stopped. Energy storage uses an ultracapacitor rather than a battery to avoid the typical battery problems of limited life.... [Design Idea by Dennis Eichenberg, Parma Heights, OH]
Ultracapacitor Voltage Limiting Circuit
Supercapacitors are working their way into more and more applications where electrical energy needs to be stored.  These robust devices can be charged and discharged 1000s of times and will typically outlast a battery.  Many supercap manufacturers claim a life span of 10 years or more.  A supercapacitor is often chosen to supply power to low current load for many hours at a time, recharged by a solar panel. [Designed by David A. Johnson]

 


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