Glowing experiment by PWM driver -Reports

Glowing experiment by PWM driver

Reports
This page contains Japanese characters.
I made PWB (Print Wired Board) of PWM driver and chassis for it by my design. I did art work of the PWB and drawing of the chassis.

Glowing experiment

A glow plug made by OS, type of A-3 shows various glowing conditions while turning the trimmer. I used 5VDC power supply.

OS製A-3のグロープラグを用い，トリマを回しながらグロー状態を示します。電源は5VDCです。

Specifications

Dimensions
Size	45 x 76mm (1.77 x 2.99")
Hole diameter ( 穴径 )	3.2mm (0.13")
Hole pitch ( 穴ピッチ )	39 x 70mm (1.54 x 2.76")

Registered at JPO, No.3132951

Terminal

Vs ( power ) : input +3 to +15 VDC

COM ( GND ) : common or ground

SIG ( signal ) : external control input ( 外部制御入力 )

Load ( 負荷 )
+ : positive
- : negative
Switch function ( スイッチ機能 )

DIP
Circuit power on/off
LED current on/off for saving

Toggle : Load on/off

Jumper : Alternate external or internal control input
Dry contact ( 接点入力 )
Voltage input ( 電圧入力 )
Electricity

Input high level ( 入力電圧 ): 3 to 16 VDC

Input signal current ( 入力信号電流 ): negligible uA

Current consumption ( 消費電流 ): 1 mA at 4.5V

PWM frequeny : 15 kHz
Trimmer Adjust equivalent constant current ( 電流調整 )
Weight 30g ( 1.1oz )

Application

There are 4 principal applications how to use the driver.

Fig.1 shows DC motor on/off control. PS is Power Supply.
Fig.2 shows how to enlarge lower limit of engine rotation speed by glowing.
Fig.3 shows an example for UAV or something. It is able to improve fuel comsumption by synchronized ignition signal in very lean condition.
Fig.4 shows an example of a scale aircraft to have an internal starter to crank in remote operation.

Chassis

Chassis example

Chassis

The PWM driver board attaches a shassis of a Aluminum sheet of 0.8mm thick. The shassis hastwo female M3 threads for binding. It weighs 15g ( 0.53oz ) including a rubber bush, also weighs screws 5g ( 0.18oz ) and so on.

Distribution

I would like to distribute it across the Pacific Ocean. Please inform me, if you are interested. Thank you.

The following includes Japanese characters.
この基板に関心のある方に配布致します。ご希望の方はご連絡下さるようお願い致します。