Differences

This shows you the differences between two versions of the page.

--- public:calculator:dm41_progs [27/07/22 10:41 BST] – [5MHz 5-pole LPF] john
+++ public:calculator:dm41_progs [24/04/23 17:07 BST] (current) – removed john
@@ Line 1: / Line 1: @@
-<-[[.:start]]
-====== DM41X Progs ======
-===== BFil =====
-++++ Butterworth HPF/LPF Filter designer |
-<code>
-LBL +BFIL
-SF 00
-+MHZ ?
-PROMPT
-E6
-*
-STO 11
-+N LPF -
-PROMPT
-x<0?
-CF 00
-STO 10
-XEQ 06
-LBL 01
-RCL 12
-INT
-XEQ 00
-FS? 00
-/x
-STO IND 12
-ISG 12
-GTO 01
-+COEFFICIENTS
-FIX 3
-STOP
-ENG 3
-XEQ 06
-LBL 02
-RCL 12
-INT
-RCL IND 12
-RCL 11
-*
-PI
-*
-/
-STO IND 12
-ISG 12
-GTO 02
-XEQ 06
-LBL 03
-RCL 12
-INT
-/
-FRC
-FS? 00
-GTO 09
-GTO 10
-LBL 09
-+HPF
-x=0?
-GTO 05
-GTO 04
-RTN
-LBL 10
-+LPF
-x=0?
-GTO 04
-GTO 05
-RTN
-LBL 04
-RCL IND 12
-*
-STO IND 12
-ISG 12
-GTO 03
-RTN
-LBL 05
-RCL IND 12
-/
-STO IND 12
-ISG 12
-GTO 03
-RTN
-LBL 06
-RCL 10
-ABS
-/
-+
-STO 12
-RTN
-LBL 00
-*
--
-*
-RCL 10
-ABS
-*
-/
-SIN
-*
-RTN
-END
-</code>
-++++
-==== Examples ====
-=== 5MHz 5-pole LPF ===
-<key>XEQ</key><key>ALPHA</key><key>BFIL</key><key>ALPHA</key>
-  MHZ ?
-<key>5</key> <key>R/S</key>
-  N LPF -
-<key>5</key><key>CHS</key><key>R/S</key>
-  COEFFICIENTS
-.618
-(at this point you can <key>RCL 01</key> etc. up to <key>RCL 05</key> to see the calculated Butterworth Coefficients)
-  * R01 : 0.618
-  * R02 : 1.618
-  * R03 : 2.000
-  * R04 : 1.618
-  * R05 : 0.618
-<key>R/S</key>
-  LPF
-.5 -12
-The calculated component values are now in Reg 01 - Reg 05
-  * R01 : 393.5pf
-  * R02 : 2.575uH
-  * R03 : 1.273nF
-  * R04 : 2.575uH
-  * R05 : 393.5pF
-===== Page Info =====
-Page created Thu May 26 18:35:00 2022 by John Pumford-Green
-Page last updated: ~~LASTMOD~~
-{{tag>dm41x calculator}}