(SCR) not latching.
Sorry to ask what I think is a silly question but Im stumped. I have a manual switch Im attempting to replace with a SCR.
So I purchased my first SCR and figured I start with a simple DC motor latch test. Well Im having no luck with latching. The data sheet
SCR calls for
IH Max. Holding Current 200
I Max. Latching Current 400
The test case has two voltages V1 24VDC power source for motor.
V2 9VDC trigger for the gate
The test hookup is simple 24VDC into one Motor lead, second Motor lead to Anode with Cathode connectede to ground.
V2 9VDC connected to normally open push button connected to 1N4001 diode then to the SCR gate
When I push the button the motor runs pulling .37 amps through SCR
When I release the button the SCR immediately shuts off any thoughts what Im missing pertain to having the SCR Latch?
Heres the data sheet.
http://www.mouser.com/catalog/specsheets/9439170t.pdf
Thanks for your input,
burntwire
Sorry to ask what I think is a silly question but Im stumped. I have a manual switch Im attempting to replace with a SCR.
So I purchased my first SCR and figured I start with a simple DC motor latch test. Well Im having no luck with latching. The data sheet
SCR calls for
IH Max. Holding Current 200
I Max. Latching Current 400
The test case has two voltages V1 24VDC power source for motor.
V2 9VDC trigger for the gate
The test hookup is simple 24VDC into one Motor lead, second Motor lead to Anode with Cathode connectede to ground.
V2 9VDC connected to normally open push button connected to 1N4001 diode then to the SCR gate
When I push the button the motor runs pulling .37 amps through SCR
When I release the button the SCR immediately shuts off any thoughts what Im missing pertain to having the SCR Latch?
Heres the data sheet.
http://www.mouser.com/catalog/specsheets/9439170t.pdf
Thanks for your input,
burntwire