I was measured with a digital multimeter the power consumption of the Pocket 3.
First, I tried to measure the current consumption during standby(power OFF).
| Supply(Voltage) | Pocket3 | Pocket2 | |
|---|---|---|---|
| Main machine |
2nd machine |
||
| NiMH x 2 (2.4V) | 0.04 | 0.06 | 0.04 |
| Alkaline x 2 (3.0V) | 0.08 | 0.08 | 0.05 |
| DC Adapter (3.0V) | 0.08 | 0.08 | 0.05 |
| NiMH x 3 (3.6V) | 0.09 | 0.10 | 0.06 |
| Alkaline x 3 (4.5V) | 0.13 | 0.14 | 0.09 |
Previously, it was said the current consumption is large Pocket3 as compared to Pocket1/Pocket2. From the above results, it is likely Apparently. In addition, individual difference of Pocket3 also seems large. Current will also become large if voltage becomes large. For efficiency, it is desirable to maintain low voltage long time. Power supply voltage is too low, lithium battery for backup might rapidly deplete. Therefore, about 3V of power supply voltage is good.
In the above three machines, there was no difference according to whether a memory card. And, in the main machine, I tried to study be a change in the backup lithium battery of new and one that was degraded by using a long period of time, but there was no difference at all to them.
Next, I tried to measure the current consumption in the OASYS mode.
I tried the change of the current value due to the LCD background color (black or white).
The unit of an upper table is milliampere, a lower unit becomes ampere from here.
Please be careful.
| LCD condition | Pocket3 | Pocket2 | ||||
|---|---|---|---|---|---|---|
| Main machine | 2nd machine | |||||
| Two inserted memory card | No memory card | No memory card | No memory card | |||
| Main menu | Most Dark | White background | 0.13 | 0.12 | 0.12 | 0.09 |
| Black background | 0.13 | 0.13 | 0.12 | 0.09 | ||
| Usually | White background | 0.12 | 0.12 | 0.11 | 0.08 | |
| Black background | 0.13 | 0.13 | 0.11 | 0.09 | ||
| Most Bright | White background | 0.12 | 0.12 | 0.11 | 0.08 | |
| Black background | 0.13 | 0.12 | 0.11 | 0.08 | ||
| Document editing screen | Most Dark | White background | 0.13 | 0.12 | 0.11 | 0.08 |
| Black background | 0.13 | 0.13 | 0.12 | 0.09 | ||
| Usually | White background | 0.13 | 0.12 | 0.10 | 0.08 | |
| Black background | 0.13 | 0.13 | 0.11 | 0.08 | ||
| Most Bright | White background | 0.12 | 0.12 | 0.10 | 0.08 | |
| Black background | 0.13 | 0.12 | 0.10 | 0.08 | ||
All feeding method is genuine power adapter.
The following tendencies can be guessed from the above result.
It seems that the current consumption is less :
However, these may be ranges with error.
Measuring instrument: same as the above.
Feeding method: genuine wall adapter.
Concentration of a liquid crystal: Standard concentration of white background all.
Backup lithium battery: Main machine is using a new battery, and 2nd machine is degraded by long term using.
Memory card slot: Dos formatted memory card in both slot.
| Comparison of the application using and the command prompt | Main machine | 2nd machine | ||
|---|---|---|---|---|
| DOS prompt | Hardware CPU saving | PDC resident | 0.12 | 0.10 |
| PDC non-resident | 0.12 | 0.10 | ||
| None Hardware CPU saving | PDC resident | 0.12 | 0.10 | |
| PDC non-resident | 0.21 | 0.17 | ||
| Application (NIFP) running | Hardware CPU saving | PDC resident | 0.13 | 0.11 |
| PDC non-resident | 0.22 | 0.17 | ||
| None Hardware CPU saving | PDC resident | 0.13 | 0.11 | |
| PDC non-resident | 0.22 | 0.17 | ||
In the case of a command prompt, if a CPU stop is set up by the SETUP(or BATCHECK) command or caused to the resident PDC, it goes into power saving. However, in NIFP use, there is no effect at all to set CPU stop and PDC is functioning effectively. Other applications, CPU stop setup becomes enabled or disabled by software.
This is based on the structure of application.
If it software uses the standard input routine of DOS, CPU stop setting is enabled. Maybe, power-saving process is performed automatically inside DOS.
On the other hand, in the case of the software which is using the own input routine for the purpose of such as high-speed processing, automatic power saving processing of DOS does not work. Even then, if PDC resides in advance, it interrupts between an own input routine and hardware, and performs power saving processing instead of DOS.
| Comparison of the original Vz for Pocket3 and the Konno version Vz | Main machine | 2nd machine | ||
|---|---|---|---|---|
| The original Vz edit screen | Hardware CPU saving | PDC resident | 0.13 | 0.10 |
| PDC non-resident | 0.22 | 0.17 | ||
| None Hardware CPU saving | PDC resident | 0.13 | 0.10 | |
| PDC non-resident | 0.22 | 0.17 | ||
| The original Vz filer | Hardware CPU saving | PDC resident | 0.13 | 0.10 |
| PDC non-resident | 0.22 | 0.17 | ||
| None Hardware CPU saving | PDC resident | 0.13 | 0.10 | |
| PDC non-resident | 0.22 | 0.17 | ||
| Konno version Vz edit screen | Hardware CPU saving | PDC resident | 0.13 | 0.10 |
| PDC non-resident | 0.12 | 0.10 | ||
| None Hardware CPU saving | PDC resident | 0.13 | 0.10 | |
| PDC non-resident | 0.13 | 0.10 | ||
| konno version Vz filer | Hardware CPU saving | PDC resident | 0.13 | 0.10 |
| PDC non-resident | 0.13 | 0.10 | ||
| None Hardware CPU saving | PDC resident | 0.13 | 0.10 | |
| PDC non-resident | 0.13 | 0.10 | ||
Once, Vz was a famous editor at high speed. Naturally, Vz is using the DOS-independent input routine. From the current consumption of the original version, this is obvious.
On the other hand, by including a power-saving routine similar to the PDC portion of the input routines, the konno version is performing power saving control by itself. This effect sounds great.