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12V, 10A Load Share - The LTC4370 is a two-supply current sharing controller which incorporates MOSFET ideal diodes. The diodes block reverse and shoot-through currents during start-up and fault conditions. Their forward voltage is adjusted to share the load currents between supplies. Unlike other sharing methods, neither a share bus nor trim pins__ Linear Technology/Analog Devices App Note, Jun 19th 2013 2-12v Battery Isolator Circuit with a LTC4412 - Has just announced a neat little chip (LTC4412). It has been designed to be used in conjunction with an external P-channel power FET, to form an ideal diode function with a very low 0.05v voltage drop. The chip monitors the voltage on eit . . . Hobby Circuit designed by David A. Johnson P.E.-August 07, 2006 |
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3 x AA Alkaline to High Peak Power 3.3V at 2A using Two Supercapacitors - The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low average__ Linear Technology/Analog Devices App Note, Mar 24th 20103.3V at 1.5A from 5V Peak-Power & Back-up Supply using Two Supercapacitors - The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low average__ Linear Technology/Analog Devices App Note, Mar 24th 2010
8 Solar Cell LED Light - I have been modifying a lot of solar garden and path lights for the last several years. I buy some units from home improvement stores, then I gut them completely. I take out the battery, electronic control board, LED and solar panel. I then replace those components with new units. I increase the size of the solar panel and battery. I use a more efficient and brighter LED . . . Circuit by David Johnson P.E.-September 22, 2017
8-Solar Cell Lithium Ion Battery Charger Version 2 - Jim Wilber looked at my design for a battery charger and sent me some suggested changes. He suggested using the LTC4412 ideal diode IC to switch off the current path from the solar cell to the battery in darkness. He also noted that the 2.5v regulator from Seiko I had selected was no longer in production and suggested using the shunt reference . . . Circuit by David A. Johnson P.E.-May 21, 2013
AdvancedTCA with High-Side & Low-Side Ideal Diode-OR & Hot Swap Controller with I2C Current & Voltage Monitor - The LTC4355 is a positive voltage ideal diode-OR controller that drives two external N-channel MOSFETs. Forming the diode-OR with N-channel MOSFETs instead of Schottky diodes reduces power consumption, heat dissipation and PC board area. __ Linear Technology/Analog Devices App Note, Mar 26th 2010
Embedded Automotive (6V to 36V Input) to 5V/3.3V/1.8V/1.2V Output Peak-Power Controller using Two Supercapacitors - The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low average__ Linear Technology/Analog Devices App Note, Mar 24th 2010
LED_Light_8_Solar_Cell - I have been modifying a lot of solar garden and path lights for the last several years. I buy some units from home improvement stores, then I gut them completely. I take out the battery, electronic control board, LED and solar panel. I then replace those components with new units. I increase the size of the solar panel and battery. I use a more efficient and brighter LED . . . Hobby Circuit by David Johnson P.E.-September 22, 2017
LTC422 μTCA Application Supplying 12V Power to Two μTCA Slots - The LTC4225 offers ideal diode and Hot Swap functions for two power rails by controlling external series connected N-channel MOSFETs. MOSFETs acting as ideal diodes replace two high power Schottky diodes and the associated heat sinks, saving power and board area. Hot Swap control MOSFETs allow boards to be safely inserted__ Linear Technology/Analog Devices App Note, Apr 22, 2011
LTC4425 2A Linear Supercapacitor Charger with Current-Limited Ideal Diode-Video Product Brief - The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low average__ Linear Technology/Analog Devices App Note, Steve Knoth-Senior Product Marketing Engineer Jul 19th 2010
Power Backup using Supercapacitors & Optional Keep-Alive Cell - The LTC4415 contains two monolithic PowerPath ideal diodes, each capable of supplying up to 4A with typical forward conduction resistance of 50mΩ. The diode voltage drops are regulated to 15mV during forward conduction at low currents, extending the power supply operating range and ensuring no oscillations during supply switchover. __ Linear Technology/Analog Devices App Note, Dec 5th 2011
Redundant USB & 3xAA High Peak Power Battery Supplies using Two Supercapacitors - The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low average__ Linear Technology/Analog Devices App Note, Mar 24th 2010
Two Load-Sharing, Redundant, 48V/10A Power Supplies using an Ideal Diode - This circuit shows a 48V/10A ideal diode-OR application. An MBR10100 Schottky diode would dissipate 6W under these operating conditions. In contrast, the FDB3632 7.5mohm MOSFET dissipates only 0.75W. The reduced power loss increases efficiency and saves space required for heat sinking. If the power supply voltages are nearly__ Linear Technology/Analog Devices App Note, Jul 8th 2011
Two Load-Sharing, Redundant, 48V/10A Power Supplies using an Ideal Diode - This circuit shows a 48V/10A ideal diode-OR application. An MBR10100 Schottky diode would dissipate 6W under these operating conditions. In contrast, the FDB3632 7.5mohm MOSFET dissipates only 0.75W. The reduced power loss increases efficiency and saves space required for heat sinking. If the power supply voltages are nearly__ Linear Technology/Analog Devices App Note, Jul 8th 2011
USB to High Peak Power 3.3V Supply using Two Supercapacitors - The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low average__ Linear Technology/Analog Devices App Note, Mar 24th 2010 |
