Abstract: A transmitting/receiving command method applied between a master controller and a slave controller of a power converter includes enabling the master controller and the slave controller; a controller of the master controller and the slave controller detecting a node voltage of a pin of the controller; the controller transmitting a first command of a plurality of first commands to another controller of the master controller and the slave controller through the pin when the node voltage is less than a predetermined voltage, wherein the predetermined voltage corresponds to over temperature protection of the power converter; and the controller detecting the node voltage again after the controller receives a first return signal transmitted by the another controller.

Abstract: A power controller for use in a PFC power converter is capable being immune from audible noise during the test of load transient response. A transconductor with a transconductance compares an output voltage of the PFC power converter with a target voltage to provide a compensation current, which builds up a compensation voltage. An ON-time controller is configured to end an ON time of a power switch in response to the compensation voltage. An OFF-time controller is configured to end an OFF time of the power switch. A compensation-voltage designator presets the compensation voltage. A status detector controls the transconductor, the ON-time controller, the OFF-time controller, and the compensation-voltage designator, in response to the output voltage, a top-boundary voltage and a bottom-boundary voltage.

Abstract: A power converter using an active-clamp flyback topology has a low-side switch, a high-side switch and a control circuit. The low-side switch connects a primary winding of a transformer to an input ground line, and the high-side switch is connected in series with a capacitor to form an active-clamp circuit connected in parallel with the primary winding. The control circuit provides high-side and low-side signals to the high-side and the low-side switches respectively, in response to a current-sense signal and a compensation signal. The control circuit is configured to operate the power converter in one of operation modes including a complementary mode and a non-complementary mode. When operated in the complementary mode, the high-side signal and the low-side signal are substantially complementary to each other, and the control circuit exits the complementary mode in response to the current-sense signal to enter the non-complementary mode.

Abstract: A control method for a power convert is disclosed. The power convert uses an active-clamp flyback topology and has low-side and high-side switches. The low-side switch is switched to generate consecutive switching cycles including a modified flyback cycle and a normal flyback cycle. Each of the consecutive switching cycles is not less than a blanking time generated in response to a load of the power converter. The high-side switch is constantly turned OFF during the normal flyback cycle. The high-side switch is turned ON after the blanking time during the modified flyback cycle to perform zero-voltage switching for the low-side switch.

Abstract: A control method for a power convert is disclosed. The power convert uses an active-clamp flyback topology and has low-side and high-side switches. The low-side switch is switched to generate consecutive switching cycles including a modified flyback cycle and a normal flyback cycle. Each of the consecutive switching cycles is not less than a blanking time generated in response to a load of the power converter. The high-side switch is constantly turned OFF during the normal flyback cycle. The high-side switch is turned ON after the blanking time during the modified flyback cycle to perform zero-voltage switching for the low-side switch.

Abstract: A power converter using an active-clamp flyback topology has a low-side switch, a high-side switch and a control circuit. The low-side switch connects a primary winding of a transformer to an input ground line, and the high-side switch is connected in series with a capacitor to form an active-clamp circuit connected in parallel with the primary winding. The control circuit provides high-side and low-side signals to the high-side and the low-side switches respectively, in response to a current-sense signal and a compensation signal. The control circuit is configured to operate the power converter in one of operation modes including a complementary mode and a non-complementary mode. When operated in the complementary mode, the high-side signal and the low-side signal are substantially complementary to each other, and the control circuit exits the complementary mode in response to the current-sense signal to enter the non-complementary mode.

Abstract: A rack mounting system is applicable to a rack. The rack mounting system includes a mounting mechanism, a first connecting assembly and a second connecting assembly. The mounting mechanism is detachably mounted to a first side of the rack. The first connecting assembly is detachably mounted to a second side of the rack. The second connecting assembly is connected to the mounting mechanism. Wherein, the mounting mechanism includes a main body and at least one pin, the main body is configured to be detachably mounted to the rack. The at least one pin is slidably passing through the main body, so that the at least one pin is movable relative to the rack. Wherein, the first connecting assembly and the second connecting assembly are configured to carry a first chassis with a first chassis width when the at least one pin is moved to a first position.

Abstract: A slide rail mechanism includes a slide rail and a reinforcing structure. The slide rail includes a first section and a second section. The second section is bent relative to the first section. The reinforcing structure is arranged at the slide rail. The reinforcing structure includes a first part and a second part. The second part is bent relative to the first part. The first part and the second part are respectively attached to the first section and the second section.

Abstract: A rack mounting system is applicable to a rack. The rack mounting system includes a mounting mechanism, a first connecting assembly and a second connecting assembly. The mounting mechanism is detachably mounted to a first side of the rack. The first connecting assembly is detachably mounted to a second side of the rack. The second connecting assembly is connected to the mounting mechanism. Wherein, the mounting mechanism includes a main body and at least one pin, the main body is configured to be detachably mounted to the rack. The at least one pin is slidably passing through the main body, so that the at least one pin is movable relative to the rack. Wherein, the first connecting assembly and the second connecting assembly are configured to carry a first chassis with a first chassis width when the at least one pin is moved to a first position.

Abstract: A rack system includes a rack, a first adapter mechanism and a second adapter mechanism. The rack has a first side and second side. A first width is defined between the first side and the second side. The first adapter mechanism is detachably mounted to the first side of the rack. The second adapter mechanism is detachably mounted to the second side of the rack. A second width is defined between the first adapter mechanism and the second adapter mechanism. The second width is smaller than the first width.

Abstract: A slide rail assembly for a rack system is configured to mount a chassis to a rack. A fixing member is arranged on one side of the chassis. The slide rail assembly comprises a guide rail having a first rail section, a second rail section and a third rail section. The first rail section is configured to support a portion of the chassis. A path is defined between the second rail section and the third rail section for allowing the fixing member on the chassis to pass through.

Abstract: A slide rail assembly for a rack system is configured to mount a chassis to a rack. A fixing member is arranged on one side of the chassis. The slide rail assembly comprises a guide rail having a first rail section, a second rail section and a third rail section. The first rail section is configured to support a portion of the chassis. A path is defined between the second rail section and the third rail section for allowing the fixing member on the chassis to pass through.

Abstract: A slide rail mechanism includes a slide rail and a reinforcing structure. The slide rail includes a first section and a second section. The second section is bent relative to the first section. The reinforcing structure is arranged at the slide rail. The reinforcing structure includes a first part and a second part. The second part is bent relative to the first part. Wherein, the first part and the second part are respectively attached to the first section and the second section.

Abstract: A secondary controller applied to a secondary side of a power converter includes a detector and a standby signal generation circuit. The detector is used for detecting a first signal and a second signal of a universal serial bus device, and a frequency of a synchronization signal corresponding to a primary side of the power converter. The standby signal generation circuit is coupled to the detector for delaying a first predetermined time to generate a standby signal to a primary controller of the primary side of the power converter when the detector fails to detect the first signal and the second signal, and the frequency of the synchronization signal is less than a first predetermined frequency, wherein the primary controller enters a standby mode according to the standby signal.

Abstract: A rack mounting system comprises a mounting mechanism, a first connecting assembly and a second connecting assembly. The mounting mechanism is configured to be detachably mounted to a first side of a rack, and movable relative to the first side of the rack. The first connecting assembly is configured to be detachably mounted to a second side of the rack. The second connecting assembly is connected to the mounting mechanism. Wherein, the first connecting assembly and the second connecting assembly are configured to carry a first chassis with a first chassis width when the mounting mechanism is moved to a first position relative to the first side of the rack.

Abstract: A slide rail assembly for a rack system is configured to mount a chassis to a rack. A fixing member is arranged on one side of the chassis. The slide rail assembly comprises a guide rail having a first rail section, a second rail section and a third rail section. The first rail section is configured to support a portion of the chassis. A path is defined between the second rail section and the third rail section for allowing the fixing member on the chassis to pass through.

Abstract: A secondary controller applied to a secondary side of a power converter includes a detector and a standby signal generation circuit. The detector is used for detecting a first signal and a second signal of a universal serial bus device, and a frequency of a synchronization signal corresponding to a primary side of the power converter. The standby signal generation circuit is coupled to the detector for delaying a first predetermined time to generate a standby signal to a primary controller of the primary side of the power converter when the detector fails to detect the first signal and the second signal, and the frequency of the synchronization signal is less than a first predetermined frequency, wherein the primary controller enters a standby mode according to the standby signal.

Abstract: A rack system includes a rack, a slide rail assembly and a chassis. The slide rail assembly is mounted to the rack. The chassis includes an upper part and a lower part. The upper part has an upper part width, and the lower part has a lower part width narrower than the upper part width. Wherein, the lower part is engaged with the slide rail assembly.

Abstract: A rack system includes a rack, a first adapter mechanism and a second adapter mechanism. The rack has a first side and second side. A first width is defined between the first side and the second side. The first adapter mechanism is detachably mounted to the first side of the rack. The second adapter mechanism is detachably mounted to the second side of the rack. A second width is defined between the first adapter mechanism and the second adapter mechanism. The second width is smaller than the first width.

Abstract: A support device includes a support element, a linking element and a blocking element. A mounting path is formed on the support element for holding a plurality of mounting elements of an object. The blocking element is configured to be driven by the linking element. When the blocking element is located at a first position, the blocking element blocks the mounting path of the support element. When the blocking element is located at a second position, the blocking element does not block the mounting path of the support element.