Nicad Battery Charger | Electronic Project Circuits

Posts Tagged ‘nicad battery charger’

constant current nicad battery charger

Normally ni cad battery often apply current be stable charger. This circuit was designed go up for use to do battery package aforementioned a kind cell 1.25V x 4 amounts are group model AA that 50mA or cell 1.25V model C that 250mA by build serial. And can fine decorate other value get easy. Follow the circuit resistor R1 and R2 use fine output voltage. While have no load appraise 8V current output railings will flow through resistor R6 and R7 any one. And when there is the size increases transistor Tr1 as a result quietly work, make at the dot Y have tall go up. Be TR2 work and dot Z be add less. It make output voltage decrease lower and trend reduction until equilibrium point value filtration of resistor R6 and R7 the that. Must live the experiment thus then must use amp meter just rightly.

Be the first to comment - What do you think? Posted by admin - June 23, 2009 at 8:08 am

Categories: Battery charger Tags: Constant current battery charger, nicad battery charger

Fast charge Controller with MAX712 – MAX713

The MAX712 and MAX713 are nickel cadmium (Ni-Cd) battery fast charge controllers which will fast charge batteries from a DC source at least 1V higher than the maximum battery voltage. 1 to 16 series cells can be charged at rates up to 4C. A voltage-slope detecting analogue-to-digital converter, timer, and temperature window comparator determine charge completion. The MAX712 or 713 are powered by the DC source via an on-clip +5V shunt regulator, and draw a maximum of 5uA from the battery when not charging. A low-side current-sense resistor allows the battery charge current to be regulated while still supplying the power to the battery’s load.

Source: http://www.next.gr/inside-circuits/Fast-charge-Controller-with-MAX712-MAX713-l5869.html

Be the first to comment - What do you think? Posted by admin - November 14, 2008 at 7:09 am

Categories: Battery charger Tags: ni mh battery, nicad battery charger, NiMh battery charger

solar cell LED lamp with LDR photo cell and extra capacitor

Reverse engineered circuit diagram of one more commercially produced solar lamp. This one is very similar to the one above, but it is brighter and contains an extra capacitor.

Read more original source: http://members.shaw.ca/novotill/SolarGardenLight/index.htm

Be the first to comment - What do you think? Posted by admin - June 30, 2008 at 11:36 am

Categories: Battery charger, Lighting Tags: Lighting, lighting senser, nicad battery charger, solar cell charger