HooToo USB 3.0 PCI-E Card
Problem and Solution
Monday October 7, 2013 13:19
February 15, 2014 17:58
Windows XP security issues after April 8, 2014?.
StrongVolt battery bank initial charge using $.99 mobile USB
charger videos. And powerbank charge of 1500 mAh Li-ion cell phone battery
using Tracfone LG 840G powered by powerbank.
3.7V volt charging jpg and video.
|Saturday February 15, 2014 17:58
Noisy computer fan to cool 12 What 5 and 15 Ohm varaible
Blue and white cable connects to heat sensor.
sensors will monitor the HooToo 7 port 1.0/2.1 A USB charging ports
KillAWatt meter will monitor power supply.
February 14, 2014 13:27
3A, 30V, Host-Controlled Single-Input, Single Cell Switchmode
Li-Ion Battery Cha (Rev. A)
The simplest way to reduce the voltage of a DC
supply is to use a linear regulator (such as a 7805), but linear regulators
waste energy as they operate by dissipating excess power as heat.
converters, on the other hand, can be remarkably efficient (95% or higher for
integrated circuits), making them useful for tasks such as converting the main
voltage in a computer (12 V in a desktop, 12-24 V in a laptop) down to the
0.8-1.8 volts needed by the processor.
|Wednesday February 12, 2014 07:25
ETEKCITY 1.0/2.1 A 5V 12V mobile charger testing complete.
Little or no heat dissipated even at max current! How did they do
and 5 Ohm power resistor setup.
.88A test of 1.0A ETEKCITY
Max current of 2.16 A.
Important is that ETEKCITY is only at 22oC.
would be dissipating about 12 - 5 = 5V times 2.16 or about 15.2W.
ETEKCITY appear to use high tech method of current and volatage
charging port test.
Harbor Freight free digital multimeters make these
experiments possible.ETEKCITY mobile charging port is
impressive both from a regulation standpoint and low heat
Adreama 1.0A regulated well but dissipated a fair amount of
|Sunday January 5, 2014 15:51
Adreama USB mobile 5V 1A charger teardown..
Thursday November 21, 2013 18:13
Onite 3.7V 1500Ah LG 840G Li-ion battery.
Onite 1500mah battery Lasts about a third longer, in
use, than the stock 1000mah battery it replaced. Tracfone LG 840G charging from 500mA USB charging port on
Harbor Freight 80W inverter connected to a Werker 12V AGM battery using the
USB breakout cable.
Cell phone beep 3 times every five
to ten minutes indicating low battery. Battery icon blinked.
battery might be used to replace failed DSO Nano battery? Hmm.
Cell phone charging video
Video 2. LG 840G
Thursday November 21 2013 videos.
Video 3. LG 840G drawing 2.3
Video 4. LG 840G
fully charged but no battery full messsage.
Video 5. Grid float charging Werker battery.
Video 6. 10.4W drawn by float
Video 7. 8.4W
drawn by float charger. Warning about Harbor Freight float chargers.
Video 8. .12 kWh used to charge Werker battery @
Video 9. Float
how li-ion should be charged. But this isn't what we see, is
Welcome to the real world.
Battery Charging Basics
Stage 1) Bulk Charge Mode
Stage 2) Absorption Charge
Stage 3) Equalization Charge Mode
Stage 4) Float, Storage, or
Maintenance Charge Mode
li-ion battery charging stages.
3.7V batteries used for 3.3V chips? And is conveniently
charged using 5V USB. :)
replaces black electrlician plastic tape.
Wednesday November 20, 2013 13:41
Reduction of 12v to
5v using 7805 linear regulator by Sandia labs technician Konrad Roeder lecture
in the early 1980s stressed the importance of the amount of current passed
though and voltage drop.
Heat sink may be required.
But there may
be some new method to reduce heat?
reduce 12v to
|Tuesday November 19, 2013 10:51
HooToo 7 USB ports, two charging ports
120-240v ~AC 50-60 Hz, 1.5A
Output 12V -DC 5000 mA.
port must drop the 12V to 5V. That's 7V with maximum 2.1A from just that one
7 * 2.1 = 14.7W must be dissipated for max draw on just
this one port?
1A charging port must dissipate 7 * 1 = 7W at max
USB 3.0 data port must dissipate 7 * 1/2 = 3.5W? Maybe even 7 * .9
Max. current 0.50.9 A (general);
5 A (charging
14.7 + 7 + 7 * 3.5 = 46.2W?
+ 7 + 7 * 6.3 = 65.8W max must be dissipated within the HooToo hub?
|Monday November 18, 2013 18:37
Unequal length wires cures tests leads short
Will it work?
Illuminated magnifying glass essential
for such work.
Hack saw used because reciprocating saw
Double-sided sticky foam tape holds
Shield surrounds wires.
20 gauge wire?
According to The Guardian, "the Casio F-91W
digital watch was declared to be 'the sign of al-Qaeda' and a contributing
factor to continued detention of prisoners by the analysts stationed at
Guantánamo Bay. Briefing documents used to train staff in assessing the
threat level of new detainees advise that possession of the F-91W
available online for as little as £4 suggests the wearer has been
trained in bomb making by al-Qaida in Afghanistan." United States Military
intelligence officials have identified the F91W as a watch that terrorists use
when constructing time bombs.
"Back in 1995, Ramzi Yousef
and Khalid Shaikh Mohammed tried to blow up the Pope in Manila. Ramzi tried
to make a bomb, accidentally set his hotel room on fire, and fled. In his recovered laptop there were instructions for how to use
a Casio F91w as a bomb's timing device.
As a result, the watch was
linked to terrorism. And as a result of 'that', the Department of Defense has
listed possession of a Casio F91w as a reason to detain 27 Guantanamo prisoners
Looks difficult to me.
Even under a magnifying glass.
Shorts between +5, D+, D- and ground checked. 'Buzzed-out' in
None found. :)
|Monday November 18, 2013 09:33
plug/receptical assembly required to measure voltage and
And maybe D+ and D- too?
Belkin 4 port USB 1.0
Two black ground wires oberved which can be
Five pads where cable attaches to board. Two pads for
Female connector successfully liberated.
Bottom right destroyed. :(
But note desoldering
skills with D+, D-, +5 and ground. :)
|Tuesday November 12, 2013 14:45
HooToo USB 3.0 7 hub with two charging ports
Touro USB 3.0 .5 TB with orange dot.
USB 2.0 1 TB partially pictured.
DSO [digital storage scope] Nano V3.
Harbor Freight free digital multimeter.
Logitech video camera
connected to the Belkin USB 2.07 port hub.
Test 1 video.
HooToo USB 3.0
7 port hub and PCI-E transfers to Touro USB 1.0 TB drive.
USB 3.0 7 port hub and PCI-E transfers from Touro USB 1.0 TB to
USB 2.0 1 TB drive.
USB 3.0 is not 10X as
fast as 2.0 for the reason that time for data transfers to/from the USB chip is
about the same.
Let B be buffer fill/empty slot time and X be USB
transmit/receive interval time.
BBBBBBBBBBXBBBBBBBBBBX USB 3.0.
|Tuesday November 5, 2013
Belkin 7 port powered USB RMA trouble cause HooToo support to
a 7 port with two charging ports powered hub
Battery charging interests caused us to measure
voltage of USB output for a Harbor Freight 12 V automotive plug, then both
Belkin 2.0 and HooToo 3.0 ports.
USB output is included from three
Harbor Freight inverters. Manuals for all stated that the output is limited to
USB 2.0, 3.0 and 2.0/3.0 testing videos
Sunday November 3, 2013
Tracfone LG 840G charged from Belkin USB hub port
on Monday November 4,2013.
Apple apparently requires more than 2 A to
charge the iPads.
Video 1. 5.5 GB file from WD 1T 7,200 rpm drive > HooToo
USB 3.0 PCI-E card > HGST Touro 1 TB drive. Elapsed time little over 5
Video 2. 5/5GB
file from from WD 1T 7,200 rpm drive > Belkin USB 2.0 hub > Verbatim 1 TB
Elapse time little over 32 minutes.
Video 4. 5.16 GB [about]file from Touro 1 TB USB 3.0 >
HooToo PCI-3 3.0 hub > Belkin 2.0 hub >Verbatim 1 TB 2.0 disk
Video 5. Elapsed time little
over 32 minutes, too.
6X faster using 3.0 than 2.0?
with the HooToo hub.
|Amazon emails Saturday November 2, 2012 01:31
Are you looking for something in our Cell
Phone Wall Chargers department? If so, you might be interested in these items.
Is Mr Bailey correct?
NEED MORE - NOT LESS - POWER
|Friday October 18, 2013 19:47
Measuring voltage outputs from HooToo and Belkin hub caused
both Touro and Verbatim disk to disappear as well as DSO_NANO _V3 from
All are back.
But DSO_NANO_V3 does not work
through Belkin hub now. Why?
Plugging DSO_NANO_V3 into Gigabyte
Welcome to the real world of computing.
Liberal arts college 'education' won't help you
Tuesday October 8, 2013 12:40
Monday October 7, 2013 14:11
Card recently purchased through
not work when tested with
1 USB 3.0 hard disk
2 Fuji camera.
camera then tested trough Belkin 7 port powered USB Hub.
Here's some info that may help in finding the
Card at upper right.
Card connected to Touro USB 3.0
But here is a concern.
Card appears dead to me.
13015 calle de sandias
albuquerque, nm 87111
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