New PWM Solar Charge Controller
My new PWM charge controller.
LTC Design Note: Monolithic linear battery charger operates from inputs up to 60V03/31/16 ,via EDN.com
Figure 3 shows an example of temperature-compensated float charging a 12V sealed lead acid battery stack from a solar panel, though any combination of input and battery voltages are possible. The LTC4079's differential voltage regulation is
Plug-and-Play Home Battery System Looks Towards DIY Energy Future01/26/16 ,via Curbed
by Patrick Sisson Jan 26, 2016, 10:30a Clifton, who previously worked with utilities, wanted to create a system that helps both consumers, who will be able to store energy from solar panels, and utilities, who benefit from more stable energy
Look at this brick of a battery case for the Nexus 6P07/09/16 ,via The Verge
ZeroLemon is preparing to release a battery case for the Nexus 6P that it says will nearly triple the battery life of your phone. The Nexus 6P Battery Case (why even bother with a ridiculous name) comes with an 8,500 mAh battery that ZeroLemon says
A unique energy improvement approach to solar-powered flight08/23/16 ,via EDN.com (blog)
The power electronics design is capable of simultaneous battery charging and the power loading from a solar array has been validated. The experimental power system electronics were validated using 32 SunPower C60 solar cells and functionality in the
Here's a beautiful solar powered cover for an e-reader you'll never own09/16/16 ,via The Verge
Its black-and-white design is beautiful (like a medieval woodcut of a leaf),and adding solar power to an e-reader just makes sense. After all, if e-readers have one major disadvantage compared to physical books, it's that physical books don't run out
LTC Work Note: Monolithic linear battery charger operates from inputs up to 60V - EDN.com
For charging somewhat low capacity batteries, or maintenance charging backup and keep-alive batteries, linear topology battery chargers are valued for their compendious footprints, simplicity and affordability. Even so, there is a dearth of linear chargers that accept a 10V or higher input voltage, leaving many industrial and automotive systems underserved. Some lash mode solutions can accept high input voltages and switching topologies offer current and efficiency advantages, but they also lay oneself open to significant costs in complexity and solution footprint. In the end, a switch mode solution is usually overkill for the low currents necessary in keep-astir systems or backup battery chargers. Furthermore, few are suitable for automotive and industrial applications up to 60V. The LTC4079 is a wide input range standalone charger that can be powered by any DC begetter from 2. 7V up to 60V, enabling CC/CV charging directly from 12V and 24V... Its marriage of simplicity and robustness allow it to easily satisfy the charging needs of subsidize-alive systems or backup battery solutions in these environments. Figure 1 is an example of a simple Li-Ion battery charger. Figure 1 Wide Range Linear Standalone Charger for 2-Stall Li-Ion Backup Battery. The LTC4079’s charge voltage is resistor-programmable, matching the flexibility of its wide input voltage range for applicable purposes. The circuit is stable across the entire input voltage range with minimal input and output capacitance. Using a celibate resistor on the PROG pin, charge current is programmable up to 250mA and can be monitored in proportion to the PROG voltage. Charge termination functionality is chummy: timer-based, programmed via TIMER pin capacitance, or, C/10 current detection by connecting the TIMER pin to ground. The timer capacitor is also utilized for bad-battery detection. Temperature-qualified charging can be implemented via the NTC and NTCBIAS sensing network to round out the full charger circuit. The LTC4079’s thermally enhanced 3mm × 3mm DFN bundle includes an internal pass element, producing a compact and comprehensive solution. The complete circuit featured in Figure 2 shows its little footprint. Figure 2 Complete Demo Board Circuit Footprint. The LTC4079 includes a number of enhancements over conventional chargers with several unique charge current regulation methods. First, for wide range, but current-limited or high impedance sources, the input voltage can be regulated to at least 160mV superior to before the battery voltage (V + 160mV). Charge current is reduced to prevent the input voltage from collapsing below this... No external components are required to attainment this internal regulation scheme. Figure 3 shows an example of temperature-compensated float charging a 12V sealed lead acid battery measure up from a solar panel, though any combination of input and battery voltages are possible. The LTC4079's differential voltage regulation is particularly useful when very low power sources such as drive harvesters or small solar panels cannot continuously provide the minimum 10mA charge current. Instead of the somewhat arbitrary halt to charging in the look of an undervoltage lockout (UVLO), this feature allows charging to continue whenever possible—a more efficient use of available input power. For a more fixed input voltage regulation setpoint, the enable input pin, EN, can servo to a resistor divider. As the input voltage reaches this setpoint, the name current is reduced to prevent loading the source any further. Source: edn.com
Beat the drum for-and-Play Home Battery System Looks Towards DIY Energy Future - Curbed
Tesla made headlines most recent year with news that its Powerwall home energy system had sold out its initial run, supporting evidence for those saying we're on the cusp of an energy revolt. But Tesla is just one of a number of companies gunning to be a tech leader in a consumer-led shift towards decentralized home power epoch. Orison , a San Diego-based startup, just launched a Kickstarter for its own home battery system, taking the mantle of scrappy startup in the nascent perseverance. And, according to CEO and co-founder Eric Clifton, the company's entry-level product—a $1,600, 40-pound tower that stores 2. 2 kWh of power—offers an much easier introduction to a do-it-yourself spirit future. Designed with LED lighting and a built-in Bluetooth speaker, the Orison is both functional and aesthetic by design. "We wanted the Prius essence," says Clifton. Now, people won't just have solar panels on their roof, but visible power storage and backup inside their home. The Orison modus operandi consists of a plug-and-play tower, which, after a quick onboarding process Clifton compared to an iPhone app, can be plugged in and start storing power in your living live. The tower can store 2. 2 kWh of power, enough to run a standard television for roughly five hours, but those who want more capacity can upgrade with Orison Panels, 22-by-28-inch batteries that price $1,100 apiece and store 1. 8 kWh each. Consumers can purchase a bundle with the tower and a series of panels and create their own energy storage combination that matches the capacity of the Tesla system for less money, and it doesn't require the setup time and permitting of a Powerwall. The Orison quick-witted system, which you can monitor via an app, also analyzes utility rates, storing power when it's cheaper and running off battery power when it's more expensive, lowering animation bills and helping foster a more efficient grid. "We're the only product that's meant to be in a conditioned space in your home," says Clifton, "We're more operative. Orison, which has about two dozen employees, has been working for the last few years to develop their home energy system, and just launched their crowdfunding send. Clifton, who previously worked with utilities, wanted to create a system that helps both consumers, who will be able to store energy from solar panels, and utilities, who service perquisites from more stable energy consumption. With a manufacturing partner in China and it's initial Kickstarter goal already met, the company looks unruffled to begin delivering product in August. "We're moving towards Grid 2. 0," says Clifton. Energy will become more of a service, and as we shake up towards a more renewable grid, we have to shift. We can't expand the current system. We need to create a system that's more resilient and efficient. Source: www.curbed.com
Look at this stone of a battery case for the Nexus 6P - The Verge
The Nexus 6P is already a big-hearted phone, and it's safe to say this case will make it ginormous. But it will let you access all of your ports with standard plugs, you can charge the case and your phone simultaneously, and it comes with a battery unvarying indicator and a power button on the rear. Back in October when we reviewed the Nexus 6P, we found that the phone's 3,450 mAh battery could get through a day under normal usage, so theoretically ZeroLemon's occasion could keep your 6P running for up to three days, if it lives up to the claims. The ZeroLemon Nexus 6P Battery Case will be available on Amazon on July 15th for a "major introductory price" of $60, according to the company. Source: www.theverge.com
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Qianson DC 12V 30A Automatic Intelligent Solar panel Battery Charging Power Supply Control Protection Board Relay Control Module10/12/16 ,via coolnerd.co
connect charger output, since the consumption 60mA.Output: Suitable for 12V battery that allows continuous current 30A, suitable for 7Ah-200Ah, the following battery charge protection, automatic shut about voltage 14.8V. Low-voltage detection voltage is ...
Details about 30A MPPT Solar Panel Regulator Battery Charger Controller 12V/24V With LCD USB10/10/16 ,via ebay.com.au
This is the price (excluding shipping and handling fees) this seller has provided at which the seller has sold the same item, or one that is virtually identical to it, in the recent past. The "off" amount and percentage simply signifies the calculated ...
Solar Battery Charger Controller10/15/16 ,via ebay.com
Please check the rated voltage of solar panel, battery, and loads before connection. 12V rated voltage is 12V, 24V rated voltage is 24V, 48V rated voltage is 48V. 30A/40A/50A/60A MPPT Solar Charger Controller for 12V/24V/36V/48VDC Batteries. 100% MPPT ...