el inconveniente a solicitar que sigificaran estos errores que me salen en el proteus 6.9
saludos y gracias
SIMULATION LOG
==============
Design: D:\PORTEUS 6.9\CONVERSOR CORRIENTE A VOLTAJEUU.DSN
Doc. no.: <NONE>
Revision: <NONE>
Author: <NONE>
Created: 01/08/07
Modified: 07/09/07
Compiling source files...
Automatic build rules are disabled.
Compiling netlist...
Linking netlist...
Partition analysis...
Simulating partition 1 [31149588]...
PROSPICE Release 6.9 SP4 (C) Labcenter Electronics 1993-2006.
SPICE Kernel Version 3f5. (C) Berkeley University ERL.
Reading netlist...
Reading SPICE models...
Building circuit...
Warning: Net #00037 has no DC path to ground.
Check pins: AVX0402Y5V100N#005D-2, MINRES100R#005C-2, X1A7F760C#1-*, X1A7F796C#1-*
Warning: Net #00039 has no DC path to ground.
Check pins: L1_AVS1-+, L1_VP1-+
Warning: Net #00068 has no DC path to ground.
Check pins: TRIAC#0066_C1-2, TRIAC#0066_W1-+, TRIAC#0066_W2--, TRIAC#0066_W3-+, TRIAC#0066_W4-+, TRIAC#0066_W4-P
Warning: Net #00069 has no DC path to ground.
Check pins: TRIAC#0066_W3-N, TRIAC#0066_W4-N
Warning: Net #00070 has no DC path to ground.
Check pins: TRIAC#0066_D1-K, TRIAC#0066_W1-P
Warning: Net #00071 has no DC path to ground.
Check pins: TRIAC#0066_D2-A, TRIAC#0066_W2-N
Warning: Net #00076 has no DC path to ground.
Check pins: U2_ACS1-+, U2_R4-2
Warning: Net #00085 has no DC path to ground.
Check pins: U2_U1_C1-2, U2_U1_W1-+, U2_U1_W2--, U2_U1_W3-+, U2_U1_W4-+, U2_U1_W4-P
Warning: Net #00086 has no DC path to ground.
Check pins: U2_U1_W3-N, U2_U1_W4-N
Warning: Net #00087 has no DC path to ground.
Check pins: U2_U1_D1-K, U2_U1_W1-P
Warning: Net #00088 has no DC path to ground.
Check pins: U2_U1_D2-A, U2_U1_W2-N
Warning: Net #00089 has no DC path to ground.
Check pins: U2_ACS1--, U2_S1-+, U2_U1_D1-A, U2_U1_D2-K
Warning: Net #00092 has no DC path to ground.
Check pins: ALTERNATOR#0064--, ALTERNATOR#0064_V2--, SWITCH#006B-COM, X1A7F7CCC#1-*, X1A7F85CC#0-*
Warning: Net #00093 has no DC path to ground.
Check pins: L1-1, L1_AVS1-A, L1_R1-2, SWITCH#006B-NO, X1A7F85CC#1-*, X1A7F829C#0-*
Warning: Net #00101 has no DC path to ground.
Check pins: ALTERNATOR#0064-+, ALTERNATOR#0064_V2-+, AVX0402Y5V100N#005D-1, MINRES360R#005B-2, TRIAC#0066-MT2, TRIAC#0066_W3-P, X1A7F7CCC#0-*, X1A7F7FFC#0-*, X1A7F72AC#1-*, X1A7F796C#0-*
Warning: Net #00102 has no DC path to ground.
Check pins: L1-2, L1_AVS1--, L1_AVS1-B, L1_R1-1, L1_VP1--, MINRES100R#005C-1, MINRES330R#005A-2, TRIAC#0066-MT1, TRIAC#0066_C1-1, TRIAC#0066_W1--, TRIAC#0066_W1-N, TRIAC#0066_W2-+, TRIAC#0066_W2-P, TRIAC#0066_W3--, TRIAC#0066_W4--, X1A7F6F4C#1-*, X1A7F7FFC#1-*, X1A7F760C#0-*, X1A7F829C#1-*
Warning: Net #00104 has no DC path to ground.
Check pins: MINRES360R#005B-1, U2-MT1, U2_AVS1-A, U2_R3-2, U2_U1_W3-P, X1A7F72AC#0-*, X1B99DB40#2-*
Warning: Net #00105 has no DC path to ground.
Check pins: MINRES330R#005A-1, TRIAC#0066-G, TRIAC#0066_D1-A, TRIAC#0066_D2-K, U2-MT2, U2_AVS1-B, U2_R3-1, U2_R4-1, U2_S1--, U2_U1_C1-1, U2_U1_W1--, U2_U1_W1-N, U2_U1_W2-+, U2_U1_W2-P, U2_U1_W3--, U2_U1_W4--, X1A7F6F4C#0-*, X1A7F7FFC#2-*, X1B99DB40#3-*
Instantiating SPICE models...
[U1] PIC16 model release 6.9 SP0 simulating PIC16877 device.
[U1] Loaded 256 bytes of persistent EEPROM data.
[U1] Loading HEX file 'C:\Documents and Settings\redes\Mis documentos\I_VS_V.HEX'.
[U1] Read total of 258 bytes from file 'C:\Documents and Settings\redes\Mis documentos\I_VS_V.HEX'.
[U1] Loaded 129 program words and 0 data bytes.
[SPICE] transient GMIN stepping at time=1.50005e-05
[SPICE] transient GMIN stepping at time=1.50005e-05
[SPICE] Error 106 - TRAN: Timestep too small; time = 1.50005e-05, timestep = 1.25e-19: trouble with node "U2_U1_W4#branch"
.
Totaliters=8399, Totalsteps=84, Goodsteps=62, Badsteps=22
Real Time Simulation FAILED.
