Windows 10: UPS HID - Long time power source update (UPS power source change event)

Hello,

I'm developing my own UPS power source, which is connected to a PC running x64 Win 10 via USB.

The UPS presents itself as a UPS-HID Battery and works fine (it is seen as a battery, all battery related Windows features are available).


The only problem is power source change latency. Getting correct power source information (and e.g. starting proper power plan) sometimes takes more than 1 minute, up to 2 minutes.

When power source is changed UPS sends interrupt HID packet "Power Info" (0x40) followed by "Remaining Capacity" (0x52) and "Run time to empty" (0x60) using USB-IN endpoint, but this does not affect Windows power source status until Windows pools itself for this data.

I've found some information about ACPI battery event notification on Windows Hardware - Battery and charging (packets 0x80 and 0x81) but the article does not mention about cases where ACPI is not involved - like UPS- HID notifications.


So here's my question: how to implement event-driven model notifications to Windows in UPS-HID (USB) power system?


Kind regards

:)

 

Windows won't boot up when unplug laptop power source

The problem is that, if i didn't unplug the power source from the laptop(ie : i just leave it connected to the power source) the laptop can boot just fine. The problem happens when i unplug the power source, and plug in back with the power source, the laptop
will go black screen after the acer logo

 

OCZ Unveils the PC Power & Cooling Pro-Source 1500 UPS

OCZ Technology Group, a worldwide leader in innovative, ultra-high performance and high reliability memory and PC components, today unveiled the Pro-Source 1500, the first Uninterruptible Power Supply (UPS) from PC Power & Cooling. Built for absolute stability and reliability from one of the most trusted names in power supplies, the Pro-Source 1500 UPS is the cost effective power protection solution for today’s high-end enthusiast and mission-critical systems.










Designed by PC Power & Cooling to be fully compatible with all PC Power and OCZ brand PSUs, the Pro-Source 1500 UPS is your ultimate source of back-up power. The Pro-Source provides a pure sine wave output, versus the conventional square wave or “step” sine wave produced by lesser quality UPS units. A pure sine wave is essential to a professional-grade back-up power source, while an inferior “step” sine wave plays havoc with today’s sophisticated and sensitive power factor correction (PFC) circuitry, making it possible for your PSU to reject the back-up power source and shut down. A professional UPS should output the same quality of power that your utility line delivers, and the Pro-Source 1500 does just that, providing a clean, pure sine wave to effectively power your high-performance PSU during a utility failure.

“PC Power & Cooling has a long history of delivering premium power management solutions to enthusiast and commercial customers, and the Pro-Source continues that tradition by addressing customers needs for superior UPS,” commented Ryan Edwards, Director of Product Management for the Group. “The Pro-Source protects your investment by delivering a pure sine wave output for uninterrupted power to even the most demanding pc configurations in the event of an extended power disruption.”

The Pro-Source 1500 features ten minutes of back-up battery time at typical load (600W), and with 1500VA (1440VA with standard plug) and 900W it is powerful enough to provide back-up power to some of the most demanding of PC configurations. The software and the front panel both show Input Voltage, Output Voltage, Frequency, Load, Backup Time, and Temperature. The Pro-Source 1500 is compatible with all major operating systems including Windows XP/Vista, Netware, and Linux. The Pro-Source can send alerts to a computer through a USB cable and can be monitored remotely via email or pager alerts. When the UPS is running on utility power it is 97% efficient and there is an overload alarm to warn the user if the load is too much for the UPS to handle. The Pro-Source 1500 UPS uses three standard 12V, 7Ah rechargeable lead acid batteries that are easy to replace, and comes with an easy to follow instruction booklet and management software.

With a history of almost 25 years building long-lasting, investment-grade PSUs, PC Power built the Pro-Source 1500 using the highest quality components and circuitry to provide the highest MTBF rating on the market. Delivering continuous power to your high-end PSU, the Pro-Source offers one the industry's most powerful yet affordable high-end UPS on the market, at a price point 40% less than a comparable unit in its class. The Pro-Source 1500 is backed by a 3-Year warranty commitment and the in-depth knowledge of PC Power & Cooling’s technical support.

Designed for high performance, enthusiast, and mission-critical systems, the PC Power & Cooling Pro-Source 1500 is the first pure sine wave, high output UPS retailing under $300.

For more information, please see the Pro-Source 1500 UPS product page.

Source: PC Power & Cooling

 

restart and kernel-power event

Hi,



The kernel power event ID 41 error occurs when the computer is shut down, or it restarts unexpectedly. When a computer that is running Windows starts, a check is performed to determine whether the computer was shut down cleanly. If the computer was not shut
down cleanly, a Kernel Power Event 41 message is generated.



Try this, see if it works for you:

• Go to "Settings"
• Select "System"
• Select "Power and Sleep"
• Select "Additional Power Settings"
• Select "Choose what the power buttons do"
• Select "Change settings currently available"
• Ensure that "Turn on fast start up" is deselected (unticked)
• Click on "Save Changes"

Restart your computer after performing the steps.



Let us know if the above steps resolved the issue.